cargurus.co.uk
Heavy tracking seen
35/100
- No tracking companies were seen after we clicked reject
- The banner asked visitors to accept 952 ad-industry “partners”
- 16 cross-site tracking companies were seen after accepting
- Device-fingerprinting techniques seen (webgl)
Where the data went
From our checker in London to 16 tracker server locations in 11 countries. Drag to spin.
- Marketing
- Advertising
- Analytics
- Data broker
- Social
- Our checker (London)
Server locations
Tap one to find it on the globe
Companies
Who showed up
- 01IIntercomChat and customer messaging · San Francisco · servers in London, DublinMarketingBeforeAfter rejectAfter accept
- 02GGoogleAd network, analytics and search · Mountain View · servers in Dublin, Palo AltoAdvertisingBeforeAfter rejectAfter accept
- 03SSentryError monitoring · San Francisco · servers in Palo AltoAnalyticsBeforeAfter rejectAfter accept
- 04CCriteoRetargeting ad network · Paris · servers in Paris, AshburnAdvertisingBeforeAfter rejectAfter accept
- 05EEquativAd exchange · Paris · servers in AmsterdamAdvertisingBeforeAfter rejectAfter accept
- 06IID5Shared ad identity · London · servers in RoubaixData brokerBeforeAfter rejectAfter accept
- 07IIndex ExchangeAd exchange · Toronto · servers in Toronto (Old Toronto)AdvertisingBeforeAfter rejectAfter accept
- 08MMagniteAd exchange · Los Angeles · servers in AmsterdamAdvertisingBeforeAfter rejectAfter accept
- 09MMediavinePublisher ad network · Boca Raton · servers in Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 10MMetaSocial network and ad platform · Menlo Park · servers in Dublin, KyivSocialBeforeAfter rejectAfter accept
- 11MMicrosoftAd network and analytics · Redmond · servers in Seattle (South Lake Union), DublinAdvertisingBeforeAfter rejectAfter accept
- 12NNexxenVideo ads · London · servers in Ashburn, CardiffAdvertisingBeforeAfter rejectAfter accept
- 13PPubMaticAd exchange · Redwood City · servers in SingaporeAdvertisingBeforeAfter rejectAfter accept
- 14RRTB HouseRetargeting ad network · Warsaw · servers in London, AmsterdamAdvertisingBeforeAfter rejectAfter accept
- 15TTaboolaContent recommendation ads · New York · servers in London, AmsterdamAdvertisingBeforeAfter rejectAfter accept
- 16TTeadsContent recommendation and video ads · New York · servers in LondonAdvertisingBeforeAfter rejectAfter accept
- 17TTransUnionCredit bureau and identity data · Chicago · servers in AshburnData brokerBeforeAfter rejectAfter accept
- 18TTripleLiftAd exchange · New York · servers in Frankfurt am MainAdvertisingBeforeAfter rejectAfter accept
- 19CComscoreAudience measurement · Reston · servers in DublinAnalyticsBeforeAfter 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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