diff --git a/src/apps.json b/src/apps.json
index c83f970fa..7985fc341 100644
--- a/src/apps.json
+++ b/src/apps.json
@@ -763,6 +763,14 @@
       "script": "adnxs\\.(?:net|com)",
       "website": "http://appnexus.com"
     },
+    "Appcues": {
+      "cats": [
+        58
+      ],
+      "icon": "Appcues.svg",
+      "script": "fast\\.appcues.com*\\.js",
+      "website": "https://appcues.com"
+    },
     "Arastta": {
       "cats": [
         6
@@ -7381,6 +7389,14 @@
       "implies": "Node.js",
       "website": "http://pencilblue.org"
     },
+    "Pendo": {
+      "cats": [
+        58
+      ],
+      "icon": "Pendo.svg",
+      "script": "cdn\\.pendo\\.io*\\.js",
+      "website": "https://pendo.io"
+    },
     "Percussion": {
       "cats": [
         1
@@ -10204,6 +10220,20 @@
       },
       "website": "https://userengage.com"
     },
+    "UserGuiding": {
+      "cats": [
+        58,
+        10
+      ],
+      "icon": "UserGuiding.svg",
+      "implies": [
+        "React",
+        "webpack",
+        "Node.js"
+      ],
+      "script": "static\\.userguiding*\\.js",
+      "website": "https://userguiding.com"
+    },
     "UserLike": {
       "cats": [
         52
@@ -12745,6 +12775,10 @@
     "57": {
       "name": "Static Site Generator",
       "priority": 1
+    },
+    "58": {
+      "name": "User Onboarding",
+      "priority": 1
     }
   }
 }
diff --git a/src/drivers/webextension/js/driver.js b/src/drivers/webextension/js/driver.js
index 51b183bb5..126d70c79 100644
--- a/src/drivers/webextension/js/driver.js
+++ b/src/drivers/webextension/js/driver.js
@@ -330,7 +330,7 @@ wappalyzer.driver.getRobotsTxt = (host, secure = false) => {
 /**
  * Anonymously track detected applications for research purposes
  */
-wappalyzer.driver.ping = (hostnameCache, adCache) => {
+wappalyzer.driver.ping = (hostnameCache = {}, adCache = []) => {
   getOption('tracking', true)
     .then(tracking => {
       if ( tracking ) {
diff --git a/src/wappalyzer.js b/src/wappalyzer.js
index 7735819d9..762915a1e 100644
--- a/src/wappalyzer.js
+++ b/src/wappalyzer.js
@@ -200,10 +200,15 @@ class Wappalyzer {
    *
    */
   ping() {
-    if ( Object.keys(this.hostnameCache).length + this.adCache.length > 50 ) {
-      this.driver.ping(this.hostnameCache, this.adCache);
+    if ( Object.keys(this.hostnameCache).length > 1 ) {
+      this.driver.ping(this.hostnameCache);
 
       this.hostnameCache = {};
+    }
+
+    if ( this.adCache.length > 1 ) {
+      this.driver.ping({}, this.adCache);
+
       this.adCache = [];
     }
   }