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.

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

Tracking before any choice

16%

of 25 sites loaded cross-site trackers as the page opened

Seen after clicking reject

6.7%

of 15 sites where we could click reject

No reject on the first screen

8%

0% offered a paid option instead

Average score

88/100

1.8 tracking companies per site on average

Grades

How 25 sites in Government and public services scored

A · Little tracking seen: 17 (68%)B · Less tracking than most: 4 (16%)C · Some tracking seen: 1 (4%)D · A lot of tracking seen: 1 (4%)F · Heavy tracking seen: 2 (8%)

88

average score

Companies on the most sites

Share of sites in Government and public services 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 Government and public services)

Consent tools

Cookie-banner platforms on sites in Government and public services

None found: 19 (76%)Civic Cookie Control: 2 (8%)Cookiebot: 2 (8%)OneTrust: 2 (8%)

4

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 Government and public services

All 25 sites →
SiteGradeCompaniesBefore choiceAfter reject
tvlicensing.co.ukFHeavy tracking seen631
metoffice.gov.ukFHeavy tracking seen1900
tfl.gov.ukDA lot of tracking seen800
scot.nhs.ukCSome tracking seen110
courtserve.netBLess tracking than most11—
nidirect.gov.ukBLess tracking than most110
tfgm.comBLess tracking than most10—
scotlandspeople.gov.ukBLess tracking than most300

Want to reuse it? Licence, monthly releases, the API and the data dictionary →