Browser Monster

Browser Monster Index · Open data

How websites track you, in numbers

Every check people run on Browser Monster adds to this public dataset. We open each homepage three times from London (doing nothing, clicking reject, clicking accept) and record what loads, so you see what a visitor in the UK sees. Banners and trackers can differ in other countries.

614 sites · latest check 27 Oct 2026 · CC BY-NC 4.0 · How we check

Tracking before any choice

65.5%

of 29 sites loaded cross-site trackers as the page opened

Seen after clicking reject

41.2%

of 17 sites where we could click reject

No reject on the first screen

6.9%

0% offered a paid option instead

Average score

56/100

6.1 tracking companies per site on average

Grades

How 29 sites in Gambling scored

A · Little tracking seen: 6 (21%)B · Less tracking than most: 2 (7%)C · Some tracking seen: 8 (28%)D · A lot of tracking seen: 3 (10%)F · Heavy tracking seen: 10 (34%)

56

average score

Companies on the most sites

Share of sites in Gambling where each was seen

  • Seen before any choice
  • Seen only later

Where the data goes

Countries of tracker servers, seen from our checker in London (in Gambling)

Consent tools

Cookie-banner platforms on sites in Gambling

None found: 14 (48%)OneTrust: 12 (41%)CookieYes: 1 (3%)Cookiebot: 1 (3%)InMobi Choice: 1 (3%)

5

tools seen

The dataset

Five linked tables, free to explore

Filter them, sort them, share the exact view, or download them. Every check adds a row.

Explore the full dataset

Most tracking seen in Gambling

All 29 sites →
SiteGradeCompaniesBefore choiceAfter reject
49s.co.ukFHeavy tracking seen291522
betway.comFHeavy tracking seen811
omaze.co.ukFHeavy tracking seen1321
meccabingo.comFHeavy tracking seen1422
buzzbingo.comFHeavy tracking seen321
botb.comFHeavy tracking seen85—
virginbet.comFHeavy tracking seen1011
tombola.co.ukFHeavy tracking seen1110

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