followfollow.com
Heading to followfollow.com? Heads up: it’ll track you. 31 companies follow visitors from here.
Privacy grade27 Oct 2026
F
Heavy tracking seen
5/100
- The banner’s alternative to accepting was a paid option: “Reject & Pay £3.50”
- 14 tracking companies were seen loading before any choice was made
- The banner asked visitors to accept 952 ad-industry “partners”
- 31 cross-site tracking companies were seen after accepting
- Device-fingerprinting techniques seen (canvas)
Tracking companies seen31 can follow people across sites33
Seen before any choice14 can follow people across sites14
Paid option instead of reject“Reject & Pay £3.50”£
Ad “partners” in the bannerconsent tool: Google Funding Choices952
Countries data went to23 server locations9
Fingerprinting seencanvas1
Where the data went
From our checker in London to 23 tracker server locations in 9 countries. Drag to spin.
- Advertising
- Data broker
- Social
- Analytics
- Our checker (London)
Server locations
Tap one to find it on the globe
Companies
Who showed up
- 01AAmazon AdsAd network · Seattle · servers in London, Seattle (South Lake Union)AdvertisingBeforeAfter accept
- 02CCriteoRetargeting ad network · Paris · servers in Paris, GroningenAdvertisingBeforeAfter accept
- 03GGoogleAd network, analytics and search · Mountain View · servers in Dublin, Palo AltoAdvertisingBeforeAfter accept
- 04IID5Shared ad identity · London · servers in Roubaix, Limburg an der LahnData brokerBeforeAfter accept
- 05IIntegral Ad ScienceAd verification · New York · servers in AshburnAdvertisingBeforeAfter accept
- 06LLiveRampIdentity graph (data broker) · San Francisco · servers in Kansas City, Seattle (South Lake Union)Data brokerBeforeAfter accept
- 07LLotameData platform (data broker) · Columbia, MD · servers in Dublin, Frankfurt am MainData brokerBeforeAfter accept
- 08MMagniteAd exchange · Los Angeles · servers in Ashburn, BostonAdvertisingBeforeAfter accept
- 09MMicrosoftAd network and analytics · Redmond · servers in Dublin, DoylestownAdvertisingBeforeAfter accept
- 10OOpenXAd exchange · Pasadena · servers in Kansas CityAdvertisingBeforeAfter accept
- 11PPubMaticAd exchange · Redwood City · servers in London, SingaporeAdvertisingBeforeAfter accept
- 12TTeadsContent recommendation and video ads · New York · servers in London, SloughAdvertisingBeforeAfter accept
- 13TThe Trade DeskAd buying platform and identity (UID2) · Ventura · servers in Toronto (Old Toronto), Seattle (South Lake Union)AdvertisingBeforeAfter accept
- 14TTripleLiftAd exchange (native ads) · New York · servers in Frankfurt am MainAdvertisingBeforeAfter accept
- 15333AcrossAd exchange and identity · New York · servers in New YorkAdvertisingBeforeAfter accept
- 16AAdformAd platform · Copenhagen · servers in CopenhagenAdvertisingBeforeAfter accept
- 17AAdobeMarketing analytics and ad platform · San Jose · servers in Ashburn, Frankfurt am MainData brokerBeforeAfter accept
- 18EEpsilonMarketing data (data broker) · Irving, TX · servers in Frankfurt am MainData brokerBeforeAfter accept
- 19EEquativAd exchange · Paris · servers in Amsterdam, Frankfurt am MainAdvertisingBeforeAfter accept
- 20EExperianCredit bureau and identity data · Dublin · servers in Kansas CityData brokerBeforeAfter accept
- 21GGumGumContextual ads · Santa Monica · servers in DublinAdvertisingBeforeAfter accept
- 22IIndex ExchangeAd exchange · Toronto · servers in Montreal, Toronto (Old Toronto)AdvertisingBeforeAfter accept
- 23IInMobiMobile ads · Bengaluru · servers in AshburnAdvertisingBeforeAfter accept
- 24LLinkedInProfessional network and ad platform · Sunnyvale · servers in LondonAdvertisingBeforeAfter accept
- 25MMedia.netContextual ads · Dubai · servers in Kansas City, MinneapolisAdvertisingBeforeAfter accept
- 26QQuantcastAudience data and ads · San Francisco · servers in AshburnAdvertisingBeforeAfter accept
- 27RRTB HouseRetargeting ad network · Warsaw · servers in Kansas City, AmsterdamAdvertisingBeforeAfter accept
- 28SSeedtagContextual ads · Madrid · servers in Kansas City, Toronto (Old Toronto)AdvertisingBeforeAfter accept
- 29SShareThisShare buttons and audience data · Palo Alto · servers in DublinSocialBeforeAfter accept
- 30SSovrnAd exchange · Boulder · servers in Dublin, AshburnAdvertisingBeforeAfter accept
- 31YYahooAd network · New York · servers in Seattle (South Lake Union), LondonAdvertisingBeforeAfter accept
- 32CCloudflare Web AnalyticsWeb analytics (cookieless) · San Francisco · servers in MontrealAnalyticsBeforeAfter accept
- 33NNielsenAudience measurement · New York · servers in Seattle (South Lake Union)AnalyticsBeforeAfter accept
From our last check on 27 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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