This page is to collect implementation experience for the Candidate Recommendation Tracking Preference Expression (DNT).
Please add implementation experience below. Ultimately, we'll try to collect this information into a tabular form to confirm interoperable implementations of each TPE feature.
Client-side DNT Implementations (Browsers only) Browser Implements General Preference doNotTrack Property Consent API Consent Expiry Non-WebWide Site Specific Cookie style domain Consent Confirm Revoke without Refresh Microsoft IE Yes not on navigator Yes No No Yes No No Microsoft Edge Yes not on navigator Yes Was working but now has confirmed bug currently being fixed Google Chrome Yes Yes No Not Applicable Chrome on iOS (WKWebView) No No No Not Applicable Mozilla Firefox Yes Yes No Not Applicable Safari on Windows Yes No No Not Applicable Safari on OSX Yes Yes No Not Applicable Safari on iOS Yes Yes No Not Applicable Comodo Dragon Yes Yes No Not Applicable Maxthon’s Cloud Browser Yes Yes No Not Applicable Opera Yes Yes No Not Applicable Brave Yes Yes No Not Applicable Client-side DNT Implementations (Browsers extensions) Browser extensions Implements General Preference doNotTrack Property Consent API Consent Expiry Non-WebWide Site Specific Cookie style domain Consent Confirm Revoke without Refresh Baycloud Bouncer/Chrome extension Yes Yes Yes Yes Yes Yes Yes Yes Baycloud Bouncer/Firefox(49+) extension Yes Yes Yes Yes Yes Yes Yes Yes PrivacyBadger/Chrome Yes Yes No Defaults to not blocking of third-parties if EFF DNT policy exists on site PrivacyBadger/Firefox Yes Yes No Defaults to not blocking of third-parties if EFF DNT policy exists on site Server-side DNT Implementations (Websites/third-party resources) Url (1st party/3rd party) Implements Tracking Response Header Tracking Status Resource Declares valid EFF policy Handles DNT Exceptions Otherwise respects DNT https://baycloud.com (1p) Yes Yes Yes JS Consent API No UIDs unless logged in (uses DNT API if supported) https://cookieq.com (3p) Yes Yes Yes JS Consent API No UIDs (enables containing site to use DNT Consent API if supported) https://medium.com (1p) Yes Yes Yes OOBC (Tk:C) No tracking third-parties, including GA, when DNT set https://natuurlijkehaarkleuring.nl/ (1p) No Yes No No Static Amazon S3 website, Cloudfront CDN, No Tracking, supports DNT TSR to allow for checking controller/processors and other representations in pre flight. https://happytowels.nl/ (1p) Yes Yes No No Supports TSV 'TK: N' on Piwik analytics, supports DNT TSR to allow for checking controller/processors and other representations in pre flight. https://nice.aeroport.fr (1p) No No No No Blocks GA if DNT:1, DNT:0 indicates consent https://www.reddit.com (1p) No No No No "If Do Not Track enabled, we will not load any third-party analytics." https://www.pinterest.com/ (3p) No No No No "we honor DNT as a signal for how you want us to use data we collect outside of Pinterest" https://demo.piwik.org (3p) Yes (N) No No No UID cookie deleted when DNT:1 http://ad.aloodo.com (3p) Yes (by meta tag) No No No "Aloodo is a system to help a web developer detect if a user are protected from, or vulnerable to, third-party tracking", uses Tk: D to force blocking by extensions https://www.webcookies.org (1p) No No Yes but invalid hash No When DNT set does not render tracking third-parties & stops analytics https://www.healthcare.gov/ (1p) No No No No "If you have Do Not Track enabled in your browser, we’ll automatically observe your preferences related to digital advertising from HealthCare.gov." http://www.nextinpact.com/blog/97497-pourquoi-next-inpact-a-decide-prendre-en-compte-signal-do-not-track.htm (1p) No No No No When DNT set does not render tracking third-parties & stops analytics https://agencearcange.fr (1p) No No No No alert box on 1st visit with DNT:1 saying "we respect your choice" https://duckduckgo.com (1p/3p) No No No No No tracking i.e. UIDs at all, search history not shared https://adzerk.com (1p/3p) No No No No If DNT set prevents writing IP address in logs. Only sets frequency capping cookies. http://trustx.org (1p/3p) No No No No "We also honor the Do Not Track (DNT) signal which can be turned on or off in your browser. When the DNT signal is on, we will treat your device as if you have opted out via the Ad Choices program. We have required advertisers and our third-party service providers to honor DNT signals in the same manner" http://dove.com/de (1p) Yes No No Yes Uses DNT JS API to communicate user consent to embedded third-party sub-resources. This one of several thousand Unilever Plc consumer brand sites also using the API when the user agent supports it. http://www.domestos.co.uk (1p) Yes No No Yes Uses DNT JS API to communicate user consent to embedded third-party sub-resources. This one of several thousand Unilever Plc consumer brand sites also using the API when the user agent supports it. http://rexona.fr (1p) Yes No No Yes Uses DNT JS API to communicate user consent to embedded third-party sub-resources. This one of several thousand Unilever Plc consumer brand sites also using the API when the user agent supports it. http://www.marmite.co.uk (1p) Yes No No Yes Uses DNT JS API to communicate user consent to embedded third-party sub-resources. This one of several thousand Unilever Plc consumer brand sites also using the API when the user agent supports it. http://www.pronamel.hu/ (1p) Yes No No Yes Uses DNT JS API to communicate user consent to embedded third-party sub-resources. This one of over a thousand GlaxoSmithKline Plc consumer brand sites using the API when the user agent supports it. http://www.aquafresh.co.uk/ (1p) Yes No No Yes Uses DNT JS API to communicate user consent to embedded third-party sub-resources. This one of over a thousand GlaxoSmithKline Plc consumer brand sites using the API when the user agent supports it.}
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