classcharts.com
Heading to classcharts.com? Heads up: it’ll track you. 5 companies follow visitors from here.
Heavy tracking seen
35/100
- 1 tracking company was seen loading before any choice was made
- No tracking companies were seen after we clicked reject
- 5 cross-site tracking companies were seen after accepting
- Device-fingerprinting techniques seen (audio, canvas, webgl)
- A session-recording service was seen (Microsoft)
Where the data went
From our checker in London to 10 tracker server locations in 5 countries. Drag to spin.
- Advertising
- Marketing
- Analytics
- Social
- Session recording
- 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
- 02HHubSpotMarketing and sales software · Cambridge, MA · servers in Toronto (Old Toronto)MarketingBeforeAfter rejectAfter accept
- 03NNew RelicPerformance monitoring · San Francisco · servers in Ashburn, ConcordAnalyticsBeforeAfter rejectAfter accept
- 04LLinkedInProfessional network and ad platform · Sunnyvale · servers in Boston, LondonSocialBeforeAfter rejectAfter accept
- 05MMetaSocial network and ad platform · Menlo Park · servers in DublinSocialBeforeAfter rejectAfter accept
- 06MMicrosoftAd network and analytics · Redmond · servers in Zurich, Seattle (South Lake Union)Session recordingBeforeAfter rejectAfter accept
- 07QQuantcastAudience data and ads · San Francisco · servers in Ashburn, Seattle (South Lake Union)AdvertisingBeforeAfter rejectAfter 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