The following table gives you an overview of the different versions of pixel v5 with the newly added features as well as the fixed bugs.



Configuration Parameter

5.3.0Requests are not sent when the user leaves the site (iOS 15+)-
5.2.9Support temporary session ID for anonymous trackingtemporarySessionId, saveTemporarySessionId

Support tracking of shadow DOM elementslinkTrackShadowRoot

The CDB is deactivated by defaultexecCDB

Form requests are not tracked when the page is hidden-
5.2.8Add tracking parameter (pf, cs801 and cs802) for pixel feature usage-
5.2.7Limit number of retries to send requests in request queuerequestQueueRetries, requestQueueRetriesOption
5.2.6Pixel does not use xwteid value for 3rd party cookies-
5.2.5Create option for Mapp user matching-
Add a property to configure request limitationrequestLimitActivated
Anonymous tracking not consistent with tab browsing and pre-rendering-

Change "wt_rla" cookie duration to session-
Fixed: TabBrowsing uses the wrong timestamp-
Added additional parameters to exclude when using anonymous tracking in the Mapp Intelligence Plugin-
5.2.3User Identification Opt-InenableAnonymousFunction, anonymousOptIn, anonymousCookieName
Support linebreaks in page name for request queue-
5.2.2Support anonymous tracking

enableIdentificationOptOut , optOutIdentificationName , suppressIdentificationParameter

wt.setIdentifierOptOut();, wt.removeIdentifierOptOut();


  • Heatmap
  • A/B Testing

Support server-to-server communication

sendViaServerActivated, sendViaServerDomain, sendViaServerPath, sendViaServerDroppedRequests, sendViaServerBlacklist

Fixed focus and blur event problem on MacOS for form tracking

5.1.1"Web to App Tracking" added.sendViaSDK

Support of pre-rendering in Safari 12.2.ignorePrerendering

Support CTRL & Left Mouse Button when using "delayLinkTrack."-

Requests are written to the request queue immediately.


Commas in page names are now supported.-

CDB for Safari disabled (ITP 2.1).

5.0.9The "Request Queue" feature has been integrated.requestQueueActivated, requestQueueTTL, requestQueueResendInterval, requestQueueSize

Only the tracking parameters that differ from the default value are sent.-

Tracking parameters that are not supported are removed.-
5.0.8Webtrekk Real Time Bidding has been removed.-
5.0.7Random character string that is appended after the tracking endpoint ("wt").requestObfuscation

Random order of all tracking parameters (including "p").requestObfuscation

Automatically generated page name contains a hash value.-

Ignore Ever ID if the timestamp is greater than 15 minutes.-
5.0.6Ability to filter URL fragments from the page URL.pageURLPattern, pageURLReplace

Extension of the Webtrekk App SDKs (Android) to overwrite the Ever ID.-

Changed default value for "execRTA = false".-
5.0.5Security fix for overlay/ heatmap.-
5.0.4RTA and CDB are completely disabled if the user has first-party opt-out/ sampling cookie.-

The Webtrekk App SDKs (iOS and Android) can overwrite the Ever ID on the page (web view).-

The Ever ID is regenerated if it is not valid (wrong timestamp).validateEverId

The pixel version is added to the CDB request.-
5.0.3The Ever ID is readable via the URL hash.-
5.0.2The function to overwrite the referrer URL was added.setReferrer

The CDBEID is now sent every 15 minutes.-

The CDBEID image service timeout increased from 500 ms to 2000 ms.-
5.0.1No more "pu" parameters in form and heatmap requests.-