huffingtonpost.co.uk
Heavy tracking seen
0/100
- 7 tracking companies were seen loading before any choice was made
- 5 tracking companies were seen after we clicked reject
- The banner asked visitors to accept 97 ad-industry “partners”
- 32 cross-site tracking companies were seen after accepting
- Device-fingerprinting techniques seen (canvas)
Where the data went
From our checker in London to 22 tracker server locations in 10 countries. Drag to spin.
- Advertising
- Analytics
- Data broker
- Our checker (London)
Server locations
Tap one to find it on the globe
Companies
Who showed up
- 01GGoogleAd network, analytics and search · Mountain View · servers in Dublin, Palo AltoAdvertisingBeforeAfter rejectAfter accept
- 02TTaboolaContent recommendation ads · New York · servers in London, Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 03TTeadsContent recommendation and video ads · New York · servers in London, OsakaAdvertisingBeforeAfter rejectAfter accept
- 04CComscoreAudience measurement · Reston · servers in DublinAnalyticsBeforeAfter rejectAfter accept
- 05AAmazon AdsAd network · Seattle · servers in London, DusseldorfAdvertisingBeforeAfter rejectAfter accept
- 06DDoubleVerifyAd verification · New York · servers in London, Toronto (Old Toronto)AdvertisingBeforeAfter rejectAfter accept
- 07IIntegral Ad ScienceAd verification · New York · servers in AshburnAdvertisingBeforeAfter rejectAfter accept
- 08PPermutiveAudience data for publishers · London · servers in London, Kansas CityData brokerBeforeAfter rejectAfter accept
- 09CChartbeatAudience analytics · New York · servers in Seattle (South Lake Union), AshburnAnalyticsBeforeAfter rejectAfter accept
- 10MMicrosoftAd network and analytics · Redmond · servers in Dublin, DoylestownAdvertisingBeforeAfter rejectAfter accept
- 11TThe Trade DeskAd buying platform and identity (UID2) · Ventura · servers in Seattle (South Lake Union), Toronto (Old Toronto)AdvertisingBeforeAfter rejectAfter accept
- 12AAdformAd platform · Copenhagen · servers in CopenhagenAdvertisingBeforeAfter rejectAfter accept
- 13AAdobeMarketing analytics and ad platform · San Jose · servers in Frankfurt am Main, AshburnAdvertisingBeforeAfter rejectAfter accept
- 14CCriteoRetargeting ad network · Paris · servers in Paris, GroningenAdvertisingBeforeAfter rejectAfter accept
- 15EEpsilonMarketing data (data broker) · Irving, TX · servers in Frankfurt am MainData brokerBeforeAfter rejectAfter accept
- 16EEquativAd exchange · Paris · servers in Palo Alto, Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 17GGumGumContextual ads · Santa Monica · servers in DublinAdvertisingBeforeAfter rejectAfter accept
- 18IID5Shared ad identity · London · servers in Montreal, RoubaixData brokerBeforeAfter rejectAfter accept
- 19IIndex ExchangeAd exchange · Toronto · servers in Montreal, Toronto (Old Toronto)AdvertisingBeforeAfter rejectAfter accept
- 20KKargoMobile ads · New York · servers in Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 21LLinkedInProfessional network and ad platform · Sunnyvale · servers in LondonAdvertisingBeforeAfter rejectAfter accept
- 22LLiveRampIdentity graph (data broker) · San Francisco · servers in Kansas CityData brokerBeforeAfter rejectAfter accept
- 23LLotameData platform (data broker) · Columbia, MD · servers in Frankfurt am Main, DublinData brokerBeforeAfter rejectAfter accept
- 24MMagniteAd exchange · Los Angeles · servers in Amsterdam, LondonAdvertisingBeforeAfter rejectAfter accept
- 25MMedia.netContextual ads · Dubai · servers in Kansas City, ParisAdvertisingBeforeAfter rejectAfter accept
- 26NNexxenVideo ads · London · servers in CardiffAdvertisingBeforeAfter rejectAfter accept
- 27OOpenXAd exchange · Pasadena · servers in Kansas CityAdvertisingBeforeAfter rejectAfter accept
- 28PPubMaticAd exchange · Redwood City · servers in London, SingaporeAdvertisingBeforeAfter rejectAfter accept
- 29QQuantcastAudience data and ads · San Francisco · servers in AshburnAdvertisingBeforeAfter rejectAfter accept
- 30RRTB HouseRetargeting ad network · Warsaw · servers in Amsterdam, Kansas CityAdvertisingBeforeAfter rejectAfter accept
- 31SSeedtagContextual ads · Madrid · servers in Kansas CityAdvertisingBeforeAfter rejectAfter accept
- 32SSovrnAd exchange · Boulder · servers in DublinAdvertisingBeforeAfter rejectAfter accept
- 33TTripleLiftAd exchange · New York · servers in Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 34YYahooAd network · New York · servers in LondonAdvertisingBeforeAfter rejectAfter accept
- 35CCloudflare Web AnalyticsWeb analytics (cookieless) · San Francisco · servers in MontrealAnalyticsBeforeAfter rejectAfter accept
- 36MMixpanelProduct analytics · San Francisco · servers in Palo Alto, Kansas CityAnalyticsBeforeAfter rejectAfter accept
From our last check on 24 Oct 2026 from London: homepage only, three fresh visits (did nothing, clicked reject, clicked accept). Server locations are approximate, from the IP addresses we connected to. Some requests after rejecting may be strictly necessary services; this is what we observed, not proof that the site broke the law. How we check · Run this site? Ask for a re-check or add a statement
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