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
40%
Seen after clicking reject
57.1%
No reject on the first screen
10%
Average score
55/100
Grades
How 10 sites in Betting scored
Companies on the most sites
Share of sites in Betting 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 Betting)
Consent tools
Cookie-banner platforms on sites in Betting
3
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.
- Sites10Open table →
- Companies30Open table →
- Countries8Open table →
- Consent tools3Open table →
- Sectors22Open table →
Most tracking seen in Betting
All 10 sites →| Site | Grade | Companies | Before choice | After reject |
|---|---|---|---|---|
| starsports.bet | FHeavy tracking seen | 17 | 15 | 4 |
| betvictor.com | FHeavy tracking seen | 11 | 3 | 2 |
| kwiff.com | FHeavy tracking seen | 9 | 1 | 1 |
| talksportbet.com | FHeavy tracking seen | 6 | 1 | 1 |
| mrgreen.com | CSome tracking seen | 4 | 0 | — |
| pokerstars.uk | CSome tracking seen | 8 | 0 | 0 |
| 888casino.com | BLess tracking than most | 5 | 0 | 0 |
| 888sport.com | BLess tracking than most | 6 | 0 | 0 |
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