sudoku.com
Heading to sudoku.com? Heads up: it’ll track you. 33 companies follow visitors from here.
Privacy grade27 Oct 2026
F
Heavy tracking seen
20/100
- 10 tracking companies were seen loading before any choice was made
- We didn’t find a reject button on the first screen of the cookie banner
- The banner asked visitors to accept 930 ad-industry “partners”
- 33 cross-site tracking companies were seen after accepting
Tracking companies seen33 can follow people across sites33
Seen before any choice10 can follow people across sites10
Reject buttonnone found on the banner’s first screen—
Ad “partners” in the bannerconsent tool: TrustArc930
Countries data went to20 server locations9
Third-party cookiesset after accepting349
Where the data went
From our checker in London to 20 tracker server locations in 9 countries. Drag to spin.
- Advertising
- Social
- Data broker
- 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
- 02EEquativAd exchange · Paris · servers in Groningen, Frankfurt am MainAdvertisingBeforeAfter accept
- 03GGoogleAd network, analytics and search · Mountain View · servers in Dublin, Palo AltoAdvertisingBeforeAfter accept
- 04IIndex ExchangeAd exchange · Toronto · servers in Toronto (Old Toronto), AmsterdamAdvertisingBeforeAfter accept
- 05IInMobiMobile ads · Bengaluru · servers in Groningen, AshburnAdvertisingBeforeAfter accept
- 06MMetaSocial network and ad platform · Menlo Park · servers in DublinSocialBeforeAfter accept
- 07MMicrosoftAd network and analytics · Redmond · servers in Dublin, LondonAdvertisingBeforeAfter accept
- 08OOpenXAd exchange · Pasadena · servers in Kansas CityAdvertisingBeforeAfter accept
- 09PPubMaticAd exchange · Redwood City · servers in Singapore, SloughAdvertisingBeforeAfter accept
- 10TTripleLiftAd exchange (native ads) · New York · servers in Frankfurt am MainAdvertisingBeforeAfter accept
- 11333AcrossAd exchange and identity · New York · servers in New YorkAdvertisingBeforeAfter accept
- 12AAdformAd platform · Copenhagen · servers in CopenhagenAdvertisingBeforeAfter accept
- 13AAdobeMarketing analytics and ad platform · San Jose · servers in London, AshburnAdvertisingBeforeAfter accept
- 14CCriteoRetargeting ad network · Paris · servers in Paris, GroningenAdvertisingBeforeAfter accept
- 15EEpsilonMarketing data (data broker) · Irving, TX · servers in Frankfurt am MainData brokerBeforeAfter accept
- 16EExperianCredit bureau and identity data · Dublin · servers in Kansas CityData brokerBeforeAfter accept
- 17GGumGumContextual ads · Santa Monica · servers in DublinAdvertisingBeforeAfter accept
- 18IID5Shared ad identity · London · servers in RoubaixData brokerBeforeAfter accept
- 19KKargoMobile ads · New York · servers in Frankfurt am MainAdvertisingBeforeAfter accept
- 20LLinkedInProfessional network and ad platform · Sunnyvale · servers in LondonAdvertisingBeforeAfter accept
- 21LLiveRampIdentity graph (data broker) · San Francisco · servers in Kansas CityData brokerBeforeAfter accept
- 22LLotameData platform (data broker) · Columbia, MD · servers in DublinData brokerBeforeAfter accept
- 23MMagniteAd exchange · Los Angeles · servers in Ashburn, AmsterdamAdvertisingBeforeAfter accept
- 24MMedia.netContextual ads · Dubai · servers in Kansas City, SloughAdvertisingBeforeAfter accept
- 25NNexxenVideo ads · London · servers in CardiffAdvertisingBeforeAfter accept
- 26QQuantcastAudience data and ads · San Francisco · servers in AshburnAdvertisingBeforeAfter accept
- 27RRTB HouseRetargeting ad network · Warsaw · servers in AmsterdamAdvertisingBeforeAfter accept
- 28SSeedtagContextual ads · Madrid · servers in Kansas CityAdvertisingBeforeAfter accept
- 29SShareThisShare buttons and audience data · Palo Alto · servers in DublinSocialBeforeAfter accept
- 30SSovrnAd exchange · Boulder · servers in DublinAdvertisingBeforeAfter accept
- 31TTeadsContent recommendation and video ads · New York · servers in ChicagoAdvertisingBeforeAfter accept
- 32TThe Trade DeskAd buying platform and identity (UID2) · Ventura · servers in Seattle (South Lake Union)AdvertisingBeforeAfter accept
- 33YYahooAd network · New York · servers in LondonAdvertisingBeforeAfter 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
Last checked
See this live on every site you visit
Browser Monster shows who’s watching on every page, what you agreed to, and helps you clear it up. It works on your device and never sells your data.
Add to ChromeCheck another site