diff --git a/.gitattributes b/.gitattributes
index 87000817f..41aa20c96 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,19 +1,19 @@
 # End-of-line normalization
 * text=auto
 
-*.cmd			text eol=lf
-*.sh			text eol=lf
-*.md			text eol=lf
-*.json			text eol=lf
-*.js			text eol=lf
-*.html			text eol=lf
-*.css			text eol=lf
-*.manifest		text eol=lf
-*.rdf			text eol=lf
-*.xul			text eol=lf
-*.dtd			text eol=lf
-*.properties	text eol=lf
-*.php			text eol=lf
+*.cmd         text eol=lf
+*.sh          text eol=lf
+*.md          text eol=lf
+*.json        text eol=lf
+*.js          text eol=lf
+*.html        text eol=lf
+*.css         text eol=lf
+*.manifest    text eol=lf
+*.rdf         text eol=lf
+*.xul         text eol=lf
+*.dtd         text eol=lf
+*.properties  text eol=lf
+*.php         text eol=lf
 
-*.png			binary
-*.gif			binary
+*.png         binary
+*.gif         binary
diff --git a/README.md b/README.md
index 190a5c9cd..43a0cfa9f 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,4 @@
-Wappalyzer
-==========
+# Wappalyzer
 
 [Wappalyzer](http://wappalyzer.com/) is a 
 [browser extension](http://wappalyzer.com/download) that uncovers the 
@@ -11,44 +10,84 @@ technologies used on websites.  It detects
 [analytics tools](http://wappalyzer.com/categories/analytics) and
 [many more](http://wappalyzer.com/applications).
 
+*Licensed under the [GPL](https://github.com/ElbertF/Wappalyzer/blob/master/LICENSE).*
 
-Contributing
-------------
+## Contributing
 
-**Adding a new application**
+### Adding a new application
 
-* Edit `share/apps.json` and use a validator like http://jsonformatter.curiousconcept.com/ to verify your modification.
-* Add a 16x16 PNG image to `share/images/icons` matching the application name and compressed with a loss-less tools like http://www.smushit.com/ or optipng http://optipng.sourceforge.net/.
+* Edit `share/apps.json` (use a JSON 
+  [validator](http://jsonformatter.curiousconcept.com)).
+* Add a 16x16 PNG image to `share/images/icons` matching the application name 
+  (use [Smush.it](http://www.smushit.com) or 
+	[OptiPNG](http://optipng.sourceforge.net) for compression).
 * Provide the URL to the application's website when submitting a pull request.
 
-Example:
+
+### Adding a new category
+
+Please open an issue to discuss first. Adding a category involves updating `apps.json`,
+preference pages, locales and [wappalyzer.com](http://wappalyzer.com).
+
+
+### Adding a new translation
+
+#### Mozilla Firefox
+
+Copy `drivers/firefox/locale/en-US`.
+
+
+#### Google Chrome
+
+Copy `drivers/chrome/_locales/en`.
+
+
+## apps.json
+
+#### Example
 
 ```javascript
 "Application Name": { 
-	cats:    [ "1" ], 
-	headers: { "X-Powered-By": "Application Name" },
-	url:     ".+\\.application-name\\.com",
-	html:    "<link[^>]application-name\\.css", 
-	meta:    { "generator": "Application Name" },
-	script:  "application-name\\.js",
-	env:     "ApplicationName",
-	implies: [ "PHP" ]
+	"cats":       [ 1 ], 
+	"headers":    { "X-Powered-By": "Application Name" },
+	"url":        ".+\\.application-name\\.com",
+	"html":       "<link[^>]application-name\\.css", 
+	"meta":       { "generator": "Application Name" },
+	"script":     "application-name\\.js",
+	"env":        "ApplicationName",
+	"implies":    [ "PHP" ],
+	"confidence": { "html": 50, "script": 50 }
 	}
 ```
 
+### JSON fields
 
-Drivers
--------
+field      | type   | description
+-----------|--------|-----------------------
+cats       | array  | List of category IDs. See [apps.json](https://github.com/ElbertF/Wappalyzer/blob/master/share/apps.json) for the complete list.
+confidence | object | Indicates less reliable patterns that may cause false positives. The aim is to achieve a combined confidence of 100%. Defaults to 100% for unspecified fields.
+env        | string | Global JavaScript variables, e.g. `jQuery`.
+headers    | object | HTTP Response headers, e.g. `X-Powered-By`.
+html       | string | Full HTML response body.
+implies    | array  | The presence of one application can imply the presence of another, e.g. Drupal means PHP is also in use.
+url        | string | URL of the page, e.g. `http://wordpress.com/index.php`.
+meta       | object | HTML meta tags, e.g. `generator`.
+script     | string | `src` attribute of HTML script tags, e.g. `jquery.js`.
+
+Except `cats`, all fields are optional.
+
+
+## Drivers
 
 Wappalyzer is multi-platform. The main code lives in the `share/` directory and
 platform specific code in `drivers/`. The sections below describe how to set up
 a development environment for the various existing drivers.
 
-To keep files synchronised between drivers, run the `links.sh` script (UNIX-like 
-systems only, Windows users can use `links.cmd`.)
+To keep files synchronised between drivers, run `links.sh` (UNIX-like systems)
+or `links.cmd` (Windows).
 
 
-**Mozilla Firefox**
+### Mozilla Firefox
 
 * Place a file called `wappalyzer@crunchlabz.com` in the extensions directory in
   your [profile folder](http://kb.mozillazine.org/Profile_folder_-_Firefox) 
@@ -59,11 +98,7 @@ systems only, Windows users can use `links.cmd`.)
 * Ctrl+Shift+J brings up a console for debugging.
 
 
-**Google Chrome**
-
-The Chrome version needs some love, if anyone wants to pick it up. It's
-currently not as feature-rich as the Firefox add-on (although partially due to 
-API limitations.)
+### Google Chrome
 
 * Navigate to `about:extensions`
 * Check "Developer mode"
@@ -71,12 +106,13 @@ API limitations.)
 * Select `drivers/chrome/`
 
 
-**Bookmarklet**
+### Bookmarklet
 
-Beta version available for testing at [wappalyzer.com/bookmarklet](http://wappalyzer.com/bookmarklet).
+Beta version available for testing at 
+[wappalyzer.com/bookmarklet](http://wappalyzer.com/bookmarklet).
 
 
-**HTML**
+### HTML
 
 The HTML driver serves purely as an example. It's a good starting point if you
 want to port Wappalyzer to a new platform.
@@ -84,10 +120,11 @@ want to port Wappalyzer to a new platform.
 * Navigate to `drivers/html/`
 
 
-**PHP**
+### PHP
 
-The PHP driver requires the [V8js](http://php.net/manual/en/book.v8js.php) class. Installing V8js 
-using [PECL](http://pecl.php.net/) on Debian Linux or Ubuntu should be very straight forward:
+The PHP driver requires the [V8js](http://php.net/manual/en/book.v8js.php) 
+class. Installing V8js using [PECL](http://pecl.php.net/) on Debian Linux or 
+Ubuntu should be very straight forward:
 
 * `# aptitude install php5-dev php-pear libv8-dev`
 * `# pecl install channel://pecl.php.net/v8js-0.1.3`
@@ -109,53 +146,29 @@ $detectedApps = $wappalyzer->analyze();
 ```
 
 
-**Mozilla Jetpack**
+### Mozilla Jetpack
 
 Work in progress, experimental. See https://wiki.mozilla.org/Jetpack.
 
 
-Unofficial drivers and ports
-----------------------------
+## Unofficial drivers and ports
 
-**Python**
+### Python
 
 A Python driver by [@ebradbury](https://github.com/ebradbury).
 
 https://github.com/ebradbury/Wappalyzer/tree/master/drivers/python
 
 
-**Ruby**
+### Ruby
 
 A Ruby port by [@skroutz](https://github.com/skroutz).
 
 https://github.com/skroutz/wappalyzer-ruby
 
 
-Screenshot
-----------
+## Screenshot
 
 Wappalyzer on Firefox:
 
-![Screenshot](http://wappalyzer.com/sites/default/themes/wappalyzer/images/installed.png)
-
-
-License
--------
->Wappalyzer
->
->Copyright © 2012  Elbert Alias and Wappalyzer project contributors
->
->This program is free software: you can redistribute it and/or modify
->it under the terms of the GNU General Public License as published by
->the Free Software Foundation, either version 3 of the License, or
->(at your option) any later version.
->
->This program is distributed in the hope that it will be useful,
->but WITHOUT ANY WARRANTY; without even the implied warranty of
->MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
->GNU General Public License for more details.
->
->You should have received a copy of the GNU General Public License
->along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-A copy of the license is available in the `LICENSE` file.
\ No newline at end of file
+![A screenshot of Wappalyzer on Firefox](http://wappalyzer.com/sites/default/themes/wappalyzer/images/installed.png)
\ No newline at end of file
diff --git a/drivers/bookmarklet/js/wappalyzer.js b/drivers/bookmarklet/js/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/drivers/bookmarklet/js/wappalyzer.js
+++ b/drivers/bookmarklet/js/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;
diff --git a/drivers/bookmarklet/json b/drivers/bookmarklet/json
index 3747a4c0a..c0b7a9aa7 100644
--- a/drivers/bookmarklet/json
+++ b/drivers/bookmarklet/json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/drivers/chrome/apps.json b/drivers/chrome/apps.json
index 3747a4c0a..c0b7a9aa7 100644
--- a/drivers/chrome/apps.json
+++ b/drivers/chrome/apps.json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/drivers/chrome/js/driver.js b/drivers/chrome/js/driver.js
index 711ff4732..97fa272d7 100644
--- a/drivers/chrome/js/driver.js
+++ b/drivers/chrome/js/driver.js
@@ -125,7 +125,7 @@
 		 * Display apps
 		 */
 		displayApps: function() {
-			var count = w.detected[tab.url].length.toString();
+			var count = Object.keys(w.detected[tab.url]).length.toString();
 
 			if ( tabCache[tab.id] == null ) {
 				tabCache[tab.id] = {
@@ -143,9 +143,7 @@
 				var i, appName, found = false;
 
 				w.driver.categoryOrder.map(function(match) {
-					for ( i in w.detected[tab.url] ) {
-						appName = w.detected[tab.url][i];
-
+					for ( appName in w.detected[tab.url] ) {
 						w.apps[appName].cats.map(function(cat) {
 							if ( cat == match && !found ) {
 								chrome.browserAction.setIcon({ tabId: tab.id, path: 'images/icons/' + appName + '.png' });
diff --git a/drivers/chrome/js/popup.js b/drivers/chrome/js/popup.js
index a2c6441b4..a837ce39b 100644
--- a/drivers/chrome/js/popup.js
+++ b/drivers/chrome/js/popup.js
@@ -42,6 +42,8 @@ document.addEventListener('DOMContentLoaded', function() {
 		},
 
 		displayApps: function() {
+			var appName, confidence;
+
 			chrome.tabs.getSelected(null, function(tab) {
 				chrome.extension.sendRequest({ id: 'get_apps', tab: tab }, function(response) {
 					if ( response.tabCache.analyzed.indexOf('headers') > 0 ) {
@@ -55,12 +57,14 @@ document.addEventListener('DOMContentLoaded', function() {
 					if ( response.tabCache.count > 0 ) {
 						detectedApps.innerHTML = '';
 
-						response.tabCache.appsDetected.map(function(appName) {
+						for ( appName in response.tabCache.appsDetected ) {
+							confidence = response.tabCache.appsDetected[appName].total;
+
 							html =
 								'<div class="detected-app">' +
 									'<a target="_blank" href="http://wappalyzer.com/applications/' + appName.toLowerCase().replace(/ /g, '-').replace(/[^\w-]/g, '') + '?utm_source=chrome&utm_medium=popup&utm_campaign=extensions">' +
 										'<img src="images/icons/' + appName + '.png"/>' +
-										'<span class="label">' + appName + '</span>' +
+										'<span class="label">' + appName + ( confidence < 100 ? ' (' + confidence + '% sure)' : '' ) + '</span>' +
 									'</a>';
 
 							response.apps[appName].cats.map(function(cat) {
@@ -75,7 +79,7 @@ document.addEventListener('DOMContentLoaded', function() {
 								'</div>';
 
 							detectedApps.innerHTML = detectedApps.innerHTML + html;
-						});
+						}
 					}
 				});
 			});
diff --git a/drivers/chrome/js/wappalyzer.js b/drivers/chrome/js/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/drivers/chrome/js/wappalyzer.js
+++ b/drivers/chrome/js/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;
diff --git a/drivers/firefox-jetpack/data/apps.json b/drivers/firefox-jetpack/data/apps.json
index 3747a4c0a..c0b7a9aa7 100644
--- a/drivers/firefox-jetpack/data/apps.json
+++ b/drivers/firefox-jetpack/data/apps.json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/drivers/firefox-jetpack/lib/wappalyzer.js b/drivers/firefox-jetpack/lib/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/drivers/firefox-jetpack/lib/wappalyzer.js
+++ b/drivers/firefox-jetpack/lib/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;
diff --git a/drivers/firefox/content/apps.json b/drivers/firefox/content/apps.json
index 3747a4c0a..c0b7a9aa7 100644
--- a/drivers/firefox/content/apps.json
+++ b/drivers/firefox/content/apps.json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/drivers/firefox/content/js/driver.js b/drivers/firefox/content/js/driver.js
index c64fb155b..8bc41d946 100644
--- a/drivers/firefox/content/js/driver.js
+++ b/drivers/firefox/content/js/driver.js
@@ -136,7 +136,7 @@
 		 */
 		displayApps: function() {
 			var
-				i, j, elements, menuItem, menuSeparator, image,
+				i, j, app, confidence, elements, menuItem, menuSeparator, image,
 				remove    = [],
 				container = d.getElementById('wappalyzer-container'),
 				menu      = d.getElementById('wappalyzer-applications'),
@@ -145,7 +145,7 @@
 
 			if ( !container ) { return; }
 
-			if ( w.detected[url] != null && w.detected[url].length ) {
+			if ( w.detected[url] != null && Object.keys(w.detected[url]).length ) {
 				// No change
 				if ( w.driver.lastDisplayed === JSON.stringify(w.detected[url]) ) { return; }
 			} else {
@@ -164,7 +164,7 @@
 				}
 			}
 
-			if ( w.detected[url] != null && w.detected[url].length ) {
+			if ( w.detected[url] != null && Object.keys(w.detected[url]).length ) {
 				if ( !prefs.getBoolPref('showIcons') ) {
 					image = d.createElement('image');
 
@@ -173,7 +173,9 @@
 					container.appendChild(image);
 				}
 
-				w.detected[url].map(function(app, i) {
+				for ( app in w.detected[url] ) {
+					confidence = w.detected[url][app].total;
+
 					var j, cat, showCat, categories = [];
 
 					for ( i in w.apps[app].cats ) {
@@ -187,13 +189,14 @@
 							menuSeparator = d.createElement('menuseparator');
 							menuItem      = d.createElement('menuitem');
 
-							menuItem.setAttribute('class', 'wappalyzer-application menuitem-iconic');
-							menuItem.setAttribute('image', 'chrome://wappalyzer/skin/images/icons/' + app + '.png');
-							menuItem.setAttribute('label', app);
-							menuItem.setAttribute('name',  app);
+							menuItem.setAttribute('class',     'wappalyzer-application menuitem-iconic');
+							menuItem.setAttribute('image',     'chrome://wappalyzer/skin/images/icons/' + app + '.png');
+							menuItem.setAttribute('label',     app + ( confidence < 100 ? ' (' + confidence + '% sure)' : '' ));
+							menuItem.setAttribute('name',      app);
+							menuItem.setAttribute('data-url',  w.config.websiteURL + 'applications/' + app.toLowerCase().replace(/ /g, '-').replace(/[^\w-]/g, ''));
 
 							menuItem.addEventListener('command', function() {
-								w.driver.goToURL({ url: w.config.websiteURL + 'applications/' + app.toLowerCase().replace(/ /g, '-').replace(/[^\w-]/g, ''), medium: 'menu' });
+								w.driver.goToURL({ url: this.getAttribute('data-url'), medium: 'menu' });
 							});
 
 							menu.appendChild(menuSeparator);
@@ -206,11 +209,12 @@
 
 								menuItem = d.createElement('menuitem');
 
-								menuItem.setAttribute('class', 'wappalyzer-category');
-								menuItem.setAttribute('label', strings.getString('wappalyzer.cat' + cat));
+								menuItem.setAttribute('class',    'wappalyzer-category');
+								menuItem.setAttribute('label',    strings.getString('wappalyzer.cat' + cat));
+								menuItem.setAttribute('data-url', w.config.websiteURL + 'categories/' + w.categories[cat]);
 
 								menuItem.addEventListener('command', function() {
-									w.driver.goToURL({ url: w.config.websiteURL + 'categories/' + w.categories[cat], medium: 'menu' });
+									w.driver.goToURL({ url: this.getAttribute('data-url'), medium: 'menu' });
 								});
 
 								menu.appendChild(menuItem);
@@ -228,7 +232,7 @@
 							break;
 						}
 					}
-				});
+				}
 
 				w.driver.lastDisplayed = JSON.stringify(w.detected[url]);
 			} else {
diff --git a/drivers/firefox/content/js/wappalyzer.js b/drivers/firefox/content/js/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/drivers/firefox/content/js/wappalyzer.js
+++ b/drivers/firefox/content/js/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;
diff --git a/drivers/html/apps.json b/drivers/html/apps.json
index 3747a4c0a..c0b7a9aa7 100644
--- a/drivers/html/apps.json
+++ b/drivers/html/apps.json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/drivers/html/js/wappalyzer.js b/drivers/html/js/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/drivers/html/js/wappalyzer.js
+++ b/drivers/html/js/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;
diff --git a/drivers/php/Wappalyzer.php b/drivers/php/Wappalyzer.php
index 0dbea2717..7f35fa23f 100644
--- a/drivers/php/Wappalyzer.php
+++ b/drivers/php/Wappalyzer.php
@@ -54,7 +54,7 @@ class Wappalyzer
 				//'env'     => $env
 				));
 
-			return $this->v8->executeString('
+			$result = $this->v8->executeString('
 				w.apps         = ' . json_encode($this->apps) . ';
 				w.categories   = ' . json_encode($this->categories) . ';
 				w.driver.debug = ' . ( $this->debug ? 'true' : 'false' ) . ';
@@ -62,6 +62,8 @@ class Wappalyzer
 
 				w.driver.init();
 				');
+
+			return json_decode($result);
 		} catch ( V8JsException $e ) {
 			throw new WappalyzerException('JavaScript error: ' . $e->getMessage());
 		}
diff --git a/drivers/php/apps.json b/drivers/php/apps.json
index 3747a4c0a..c0b7a9aa7 100644
--- a/drivers/php/apps.json
+++ b/drivers/php/apps.json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/drivers/php/index.php b/drivers/php/index.php
index b5d919e4f..1b82856fb 100644
--- a/drivers/php/index.php
+++ b/drivers/php/index.php
@@ -21,7 +21,9 @@ try {
 	$detectedApps = $wappalyzer->analyze();
 
 	if ( $detectedApps ) {
-		echo implode("\n", $detectedApps) . "\n";
+		foreach ( $detectedApps as $detectedApp => $data ) {
+			echo $detectedApp . ', ' . $data->confidence . '%, ', implode(', ', $data->categories) . "\n";
+		}
 	} else {
 		echo "No applications detected\n";
 	}
diff --git a/drivers/php/js/driver.js b/drivers/php/js/driver.js
index ee45e54f3..6cc6fc3f9 100644
--- a/drivers/php/js/driver.js
+++ b/drivers/php/js/driver.js
@@ -15,12 +15,25 @@ w.driver = {
 	 * Initialize
 	 */
 	init: function() {
+		var app, apps = {};
+
 		w.analyze(w.driver.data.host, w.driver.data.url, {
 			html:    w.driver.data.html,
 			headers: w.driver.data.headers
 		});
 
-		return w.detected[w.driver.data.url];
+		for ( app in w.detected[w.driver.data.url] ) {
+			apps[app] = {
+				categories: [],
+				confidence: w.detected[w.driver.data.url][app].total
+				};
+
+			w.apps[app].cats.map(function(cat) {
+				apps[app].categories.push(w.categories[cat]);
+			});
+		};
+
+		return JSON.stringify(apps);
 	},
 
 	/**
diff --git a/drivers/php/js/wappalyzer.js b/drivers/php/js/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/drivers/php/js/wappalyzer.js
+++ b/drivers/php/js/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;
diff --git a/share/apps.json b/share/apps.json
index 3747a4c0a..c0b7a9aa7 100644
--- a/share/apps.json
+++ b/share/apps.json
@@ -813,7 +813,8 @@
 			"html": "(<div[^>]+id=\\\"wrapper_r\\\"|<[^>]+(feed|components)/com_|<table[^>]+class=\\\"pill)",
 			"headers": { "X-Content-Encoded-By": "Joomla" },
 			"env": "^jcomments$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "html": 50, "url": 50 }
 		},
 		"jqPlot": {
 			"cats": [ 25 ],
@@ -930,7 +931,8 @@
 			"script": "(js/mage|skin/frontend/(default|enterprise))",
 			"headers": { "Set-Cookie": "frontend=" },
 			"env": "^(Mage|VarienForm)$",
-			"implies": [ "PHP" ]
+			"implies": [ "PHP" ],
+			"confidence": { "headers": 50 }
 		},
 		"Mambo": {
 			"cats": [ 1 ],
@@ -1380,8 +1382,9 @@
 			"cats": [ 18 ],
 			"script": "/assets/application-[a-z\\d]{32}/\\.js",
 			"meta": { "csrf-param": "authenticity_token" },
-			"headers": { "Server": "(mod_rails|mod_rack|Phusion\\.Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion\\.Passenger)" },
-			"implies": [ "Ruby" ]
+			"headers": { "Server": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)", "X-Powered-By": "(mod_rails|mod_rack|Phusion(\\.|_)Passenger)" },
+			"implies": [ "Ruby" ],
+			"confidence": { "script": 50, "meta": 50, "headers": 50 }
 		},
 		"S.Builder": {
 			"cats": [ 1 ],
@@ -1467,8 +1470,7 @@
 		"Snoobi": {
 			"cats": [ 10 ],
 			"script": "snoobi\\.com/snoop\\.php",
-			"env": "^snoobi$",
-			"implies": [ "Joomla" ]
+			"env": "^snoobi$"
 		},
 		"SOBI 2": {
 			"cats": [ 19 ],
@@ -1582,7 +1584,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
@@ -1593,7 +1595,8 @@
 			"cats": [ 18 ],
 			"script": "twitter\\.github\\.com/bootstrap",
 			"html": "<link[^>]+bootstrap[^>]+css",
-			"env": "^Twipsy$"
+			"env": "^Twipsy$",
+			"confidence": { "env": 50 }
 		},
 		"Typekit": {
 			"cats": [ 17 ],
diff --git a/share/js/wappalyzer.js b/share/js/wappalyzer.js
index b3f81db41..e61da003b 100644
--- a/share/js/wappalyzer.js
+++ b/share/js/wappalyzer.js
@@ -28,10 +28,10 @@ var wappalyzer = (function() {
 	 * Main script
 	 */
 	var w = {
-		apps:     null,
+		apps:     {},
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -90,6 +90,15 @@ var wappalyzer = (function() {
 		 * Analyze the request
 		 */
 		analyze: function(hostname, url, data) {
+			var
+				i, j, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
+				profiler = {
+					regexCount: 0,
+					startTime:  new Date().getTime()
+				},
+				apps     = []
+				;
+
 			w.log('w.analyze');
 
 			url = url.split('#')[0];
@@ -103,26 +112,21 @@ var wappalyzer = (function() {
 			}
 
 			if ( typeof w.detected[url] === 'undefined' ) {
-				w.detected[url] = [];
+				w.detected[url] = {};
 			}
 
-			var
-				i, app, type, regex, regexMeta, regexScript, match, content, meta, header,
-				profiler = {
-					regexCount: 0,
-					startTime:  new Date().getTime()
-				},
-				apps     = []
-				;
-
 			appLoop:
 			for ( app in w.apps ) {
 				// Skip if the app has already been detected
-				if ( w.detected[url].indexOf(app) !== -1 || apps.indexOf(app) !== -1 ) {
+				if ( w.detected[url].hasOwnProperty(app) || apps.indexOf(app) !== -1 ) {
 					continue;
 				}
 
 				for ( type in w.apps[app] ) {
+					confidence = {};
+
+					confidence[type] = w.apps[app].hasOwnProperty('confidence') && w.apps[app].confidence.hasOwnProperty(type) ? w.apps[app].confidence[type] : 100;
+
 					switch ( type ) {
 						case 'url':
 							regex = new RegExp(w.apps[app][type].replace('/', '\\\/'), 'i');
@@ -130,7 +134,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(url) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps[app] = confidence;
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -194,7 +198,7 @@ var wappalyzer = (function() {
 										profiler.regexCount ++;
 
 										if ( content && content.length === 4 && regex.test(content[2]) ) {
-											apps.push(app);
+											apps[app] = confidence;
 
 											continue appLoop;
 										}
@@ -214,7 +218,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( typeof data[type][header] === 'string' && regex.test(data[type][header]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps[app] = confidence;
 
 									continue appLoop;
 								}
@@ -246,59 +250,82 @@ var wappalyzer = (function() {
 			w.log('Tested ' + profiler.regexCount + ' regular expressions in ' + ( ( ( new Date ).getTime() - profiler.startTime ) / 1000 ) + 's');
 
 			// Implied applications
-			var i, j, k, implied;
-
+			// Run several passes as implied apps may imply other apps
 			for ( i = 0; i < 3; i ++ ) {
-				for ( j in apps ) {
-					if ( w.apps[apps[j]] && w.apps[apps[j]].implies ) {
-						for ( k in w.apps[apps[j]].implies ) {
-							implied = w.apps[apps[j]].implies[k];
+				for ( app in apps ) {
+					confidence = apps[app];
 
+					if ( w.apps[app] && w.apps[app].implies ) {
+						w.apps[app].implies.map(function(implied) {
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
 
-								continue;
+								return;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							// Apply app confidence to implied app
+							if ( !apps.hasOwnProperty(implied) ) {
+								apps[implied] = {};
 							}
-						}
+
+							for ( type in confidence ) {
+								if ( !apps[implied].hasOwnProperty(type + ' implied by ' + app) ) {
+									apps[implied][type + ' implied by ' + app] = confidence[type];
+								}
+							}
+						});
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(Object.keys(apps).length + ' apps detected: ' + Object.keys(apps).join(', ') + 'on ' + url);
 
 			// Keep history of detected apps
-			var i, app, regex, regexMeta, match;
+			for ( app in apps ) {
+				confidence = apps[app];
 
-			for ( i in apps ) {
-				app = apps[i];
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-				// Per hostname
-				if ( /^[a-z0-9._\-]+\.[a-z]+/.test(hostname) && !/((local|dev|development|stage|staging|test|testing|demo|admin)\.|\/admin|\.local)/.test(url) ) {
-					if ( typeof w.ping.hostnames === 'undefined' ) {
-						w.ping.hostnames = {};
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
 
-					w.ping.hostnames[hostname].applications[app] ++;
+						w.detected[url][app].total = Math.min(w.detected[url][app].total, 100);
+					}
 				}
 
-				// Per URL
-				if ( w.detected[url].indexOf(app) === -1 ) { w.detected[url].push(app); }
+				if ( w.detected[url][app].total >= 100 ) {
+					// Per hostname
+					if ( /(www.)?((.+?)\.(([a-z]{2,3}\.)?[a-z]{2,6}))$/.test(hostname) && !/((local|dev(elopment)?|stag(e|staging)?|test(ing)?|demo(shop)?|admin)\.|\/admin|\.local)/.test(url) ) {
+						if ( !w.ping.hostnames.hasOwnProperty(hostname) ) {
+							w.ping.hostnames[hostname] = { applications: {}, meta: {} };
+						}
+
+						if ( !w.ping.hostnames[hostname].applications.hasOwnProperty(app) ) {
+							w.ping.hostnames[hostname].applications[app] = 1;
+						}
+
+						w.ping.hostnames[hostname].applications[app] ++;
+					} else {
+						w.log('Ignoring hostname "' + hostname + '"');
+					}
+				}
 			}
 
+			w.log(JSON.stringify(w.detected));
+
 			// Additional information
-			if ( typeof w.ping.hostnames !== 'undefined' && typeof w.ping.hostnames[hostname] !== 'undefined' ) {
+			if ( w.ping.hostnames.hasOwnProperty(hostname) ) {
 				if ( typeof data.html === 'string' && data.html ) {
 					match = data.html.match(/<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"/i);
 
@@ -322,7 +349,7 @@ var wappalyzer = (function() {
 				w.log(hostname + ': ' + JSON.stringify(w.ping.hostnames[hostname]));
 			}
 
-			if ( typeof w.ping.hostnames === 'object' && Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
+			if ( Object.keys(w.ping.hostnames).length >= 50 ) { driver('ping'); }
 
 			apps = null;
 			data = null;