diff --git a/drivers/bookmarklet/js/wappalyzer.js b/drivers/bookmarklet/js/wappalyzer.js
index b3f81db41..d87c376e2 100644
--- a/drivers/bookmarklet/js/wappalyzer.js
+++ b/drivers/bookmarklet/js/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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 894ffb09c..c59edee7b 100644
--- a/drivers/bookmarklet/json
+++ b/drivers/bookmarklet/json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
diff --git a/drivers/chrome/apps.json b/drivers/chrome/apps.json
index 894ffb09c..c59edee7b 100644
--- a/drivers/chrome/apps.json
+++ b/drivers/chrome/apps.json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
diff --git a/drivers/chrome/js/driver.js b/drivers/chrome/js/driver.js
index 711ff4732..86e52bbac 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] = {
@@ -140,11 +140,11 @@
 
 			if ( count > 0 ) {
 				// Find the main application to display
-				var i, appName, found = false;
+				var i, appName, confidence, 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] ) {
+						confidence = w.detected[tab.url][appName].total;
 
 						w.apps[appName].cats.map(function(cat) {
 							if ( cat == match && !found ) {
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..d87c376e2 100644
--- a/drivers/chrome/js/wappalyzer.js
+++ b/drivers/chrome/js/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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 894ffb09c..c59edee7b 100644
--- a/drivers/firefox-jetpack/data/apps.json
+++ b/drivers/firefox-jetpack/data/apps.json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
diff --git a/drivers/firefox-jetpack/lib/wappalyzer.js b/drivers/firefox-jetpack/lib/wappalyzer.js
index b3f81db41..d87c376e2 100644
--- a/drivers/firefox-jetpack/lib/wappalyzer.js
+++ b/drivers/firefox-jetpack/lib/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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 894ffb09c..c59edee7b 100644
--- a/drivers/firefox/content/apps.json
+++ b/drivers/firefox/content/apps.json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
diff --git a/drivers/firefox/content/js/driver.js b/drivers/firefox/content/js/driver.js
index c64fb155b..0938ca07f 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 ) {
@@ -189,7 +191,7 @@
 
 							menuItem.setAttribute('class', 'wappalyzer-application menuitem-iconic');
 							menuItem.setAttribute('image', 'chrome://wappalyzer/skin/images/icons/' + app + '.png');
-							menuItem.setAttribute('label', app);
+							menuItem.setAttribute('label', app + ( confidence < 100 ? ' (' + confidence + '% sure)' : '' ));
 							menuItem.setAttribute('name',  app);
 
 							menuItem.addEventListener('command', function() {
@@ -228,7 +230,7 @@
 							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..d87c376e2 100644
--- a/drivers/firefox/content/js/wappalyzer.js
+++ b/drivers/firefox/content/js/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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 894ffb09c..c59edee7b 100644
--- a/drivers/html/apps.json
+++ b/drivers/html/apps.json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
diff --git a/drivers/html/js/wappalyzer.js b/drivers/html/js/wappalyzer.js
index b3f81db41..d87c376e2 100644
--- a/drivers/html/js/wappalyzer.js
+++ b/drivers/html/js/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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 894ffb09c..c59edee7b 100644
--- a/drivers/php/apps.json
+++ b/drivers/php/apps.json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
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 b761801a0..6cc6fc3f9 100644
--- a/drivers/php/js/driver.js
+++ b/drivers/php/js/driver.js
@@ -15,20 +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 categories
-		w.detected[w.driver.data.url].map(function(app, i) {
+		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) {
-				w.detected[w.driver.data.url][i] += ' ' + w.categories[cat];
+				apps[app].categories.push(w.categories[cat]);
 			});
-		});
-		*/
+		};
 
-		return w.detected[w.driver.data.url];
+		return JSON.stringify(apps);
 	},
 
 	/**
diff --git a/drivers/php/js/wappalyzer.js b/drivers/php/js/wappalyzer.js
index b3f81db41..d87c376e2 100644
--- a/drivers/php/js/wappalyzer.js
+++ b/drivers/php/js/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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 894ffb09c..c59edee7b 100644
--- a/share/apps.json
+++ b/share/apps.json
@@ -1380,8 +1380,9 @@
 			"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 ],
@@ -1581,7 +1582,7 @@
 		"Tumblr": {
 			"cats": [ 11 ],
 			"html": "<iframe src=\\\"[^>]+tumblr\\.com",
-			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/"
+			"url": "^https?://(www\\.)?[^/]+\\.tumblr\\.com/",
 			"headers": { "X-Tumblr-Usec": ".*" }
 		},
 		"Twilight CMS": {
diff --git a/share/js/wappalyzer.js b/share/js/wappalyzer.js
index b3f81db41..d87c376e2 100644
--- a/share/js/wappalyzer.js
+++ b/share/js/wappalyzer.js
@@ -30,8 +30,8 @@ var wappalyzer = (function() {
 	var w = {
 		apps:     null,
 		cats:     null,
-		ping:     {},
-		detected: [],
+		ping:     { hostnames: {} },
+		detected: {},
 
 		config: {
 			environment: 'dev', // dev | live
@@ -103,11 +103,11 @@ 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,
+				i, app, confidence, type, regex, regexMeta, regexScript, match, content, meta, header,
 				profiler = {
 					regexCount: 0,
 					startTime:  new Date().getTime()
@@ -118,11 +118,15 @@ var wappalyzer = (function() {
 			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.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -146,7 +150,7 @@ var wappalyzer = (function() {
 							profiler.regexCount ++;
 
 							if ( regex.test(data[type]) ) {
-								apps.push(app);
+								apps.push({ app: app, confidence: confidence });
 
 								continue appLoop;
 							}
@@ -166,7 +170,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(match[2]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: 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.push({ app: app, confidence: 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.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -232,7 +236,7 @@ var wappalyzer = (function() {
 								profiler.regexCount ++;
 
 								if ( regex.test(data[type][i]) ) {
-									apps.push(app);
+									apps.push({ app: app, confidence: confidence });
 
 									continue appLoop;
 								}
@@ -250,9 +254,11 @@ var wappalyzer = (function() {
 
 			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];
+					app = apps[j].app;
+
+					if ( w.apps[app] && w.apps[app].implies ) {
+						for ( k in w.apps[app].implies ) {
+							implied = w.apps[app].implies[k];
 
 							if ( !w.apps[implied] ) {
 								w.log('Implied application ' + implied + ' does not exist');
@@ -260,45 +266,72 @@ var wappalyzer = (function() {
 								continue;
 							}
 
-							if ( w.detected[url].indexOf(implied) === -1 && apps.indexOf(implied) === -1 ) {
-								apps.push(implied);
+							if ( !w.detected[url].hasOwnProperty(implied) && apps.indexOf(implied) === -1 ) {
+								apps.push({ app: implied, confidence: apps[j].confidence });
 							}
 						}
 					}
 				}
 			}
 
-			w.log(apps.length + ' apps detected: ' + apps.join(', ') + ' on ' + url);
+			w.log(apps.reduce(function(reduced, app) {
+				var i;
+
+				for ( i in app.confidence ) {
+					return app.app + ' (' + app.confidence[i] + '%) ';
+				}
+			}, Object.keys(apps).length + ' apps detected: ') + 'on ' + url);
 
 			// Keep history of detected apps
 			var i, app, regex, regexMeta, match;
 
 			for ( i in apps ) {
-				app = apps[i];
+				app = apps[i].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 = {};
-					}
+				confidence = apps[i].confidence;
 
-					if ( typeof w.ping.hostnames[hostname] === 'undefined' ) {
-						w.ping.hostnames[hostname] = { applications: {}, meta: {} };
-					}
+				// Per URL
+				if ( !w.detected[url].hasOwnProperty(app)) {
+					w.detected[url][app] = {};
+				}
 
-					if ( typeof w.ping.hostnames[hostname].applications[app] === 'undefined' ) {
-						w.ping.hostnames[hostname].applications[app] = 1;
-					}
+				for ( type in confidence ) {
+					w.detected[url][app][type] = confidence[type];
+				}
 
-					w.ping.hostnames[hostname].applications[app] ++;
+				// Calculate confidence total
+				w.detected[url][app].total = 0;
+
+				for ( type in w.detected[url][app] ) {
+					if ( type !== 'total' ) {
+						w.detected[url][app].total += w.detected[url][app][type];
+
+						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 +355,7 @@ 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;