webmd.com
Heavy tracking seen
10/100
- 1 tracking company was seen loading before any choice was made
- 1 tracking company was seen after we clicked reject
- The banner asked visitors to accept 57 ad-industry “partners”
- 30 cross-site tracking companies were seen after accepting
Where the data went
From our checker in London to 20 tracker server locations in 9 countries. Drag to spin.
- Advertising
- Data broker
- Our checker (London)
Server locations
Tap one to find it on the globe
Companies
Who showed up
- 01AAdobeMarketing analytics and ad platform · San Jose · servers in Boston, Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 02GGoogleAd network, analytics and search · Mountain View · servers in Palo Alto, DublinAdvertisingBeforeAfter rejectAfter accept
- 03AAdformAd platform · Copenhagen · servers in CopenhagenAdvertisingBeforeAfter rejectAfter accept
- 04AAmazon AdsAd network · Seattle · servers in London, Seattle (South Lake Union)AdvertisingBeforeAfter rejectAfter accept
- 05CCriteoRetargeting ad network · Paris · servers in Paris, GroningenAdvertisingBeforeAfter rejectAfter accept
- 06DDoubleVerifyAd verification · New York · servers in Boston, Kansas CityAdvertisingBeforeAfter rejectAfter accept
- 07EEpsilonMarketing data (data broker) · Irving, TX · servers in Frankfurt am MainData brokerBeforeAfter rejectAfter accept
- 08EEquativAd exchange · Paris · servers in GroningenAdvertisingBeforeAfter rejectAfter accept
- 09EExperianCredit bureau and identity data · Dublin · servers in Kansas CityData brokerBeforeAfter rejectAfter accept
- 10GGumGumContextual ads · Santa Monica · servers in DublinAdvertisingBeforeAfter rejectAfter accept
- 11IID5Shared ad identity · London · servers in Montreal, RoubaixData brokerBeforeAfter rejectAfter accept
- 12IIndex ExchangeAd exchange · Toronto · servers in Montreal, Toronto (Old Toronto)AdvertisingBeforeAfter rejectAfter accept
- 13KKargoMobile ads · New York · servers in Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 14LLinkedInProfessional network and ad platform · Sunnyvale · servers in LondonAdvertisingBeforeAfter rejectAfter accept
- 15LLiveRampIdentity graph (data broker) · San Francisco · servers in Kansas City, Seattle (South Lake Union)Data brokerBeforeAfter rejectAfter accept
- 16LLotameData platform (data broker) · Columbia, MD · servers in Frankfurt am Main, DublinData brokerBeforeAfter rejectAfter accept
- 17MMagniteAd exchange · Los Angeles · servers in Amsterdam, LondonAdvertisingBeforeAfter rejectAfter accept
- 18MMedia.netContextual ads · Dubai · servers in Minneapolis, Kansas CityAdvertisingBeforeAfter rejectAfter accept
- 19MMicrosoftAd network and analytics · Redmond · servers in Dublin, DoylestownAdvertisingBeforeAfter rejectAfter accept
- 20NNexxenVideo ads · London · servers in CardiffAdvertisingBeforeAfter rejectAfter accept
- 21OOpenXAd exchange · Pasadena · servers in Kansas CityAdvertisingBeforeAfter rejectAfter accept
- 22PPubMaticAd exchange · Redwood City · servers in London, SingaporeAdvertisingBeforeAfter rejectAfter accept
- 23QQuantcastAudience data and ads · San Francisco · servers in AshburnAdvertisingBeforeAfter rejectAfter accept
- 24RRTB HouseRetargeting ad network · Warsaw · servers in AmsterdamAdvertisingBeforeAfter rejectAfter accept
- 25SSovrnAd exchange · Boulder · servers in AshburnAdvertisingBeforeAfter rejectAfter accept
- 26TTeadsContent recommendation and video ads · New York · servers in ChicagoAdvertisingBeforeAfter rejectAfter accept
- 27TThe Trade DeskAd buying platform and identity (UID2) · Ventura · servers in Seattle (South Lake Union)AdvertisingBeforeAfter rejectAfter accept
- 28TTransUnionCredit bureau and identity data · ChicagoData brokerBeforeAfter rejectAfter accept
- 29TTripleLiftAd exchange · New York · servers in Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 30YYahooAd network · New York · servers in London, DublinAdvertisingBeforeAfter 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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