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v2.1

21.co.uk

United Kingdom · Casino
Licensed · GBScored · ranked
OverviewReview signals1.3KEvidenceAppLicenceActiveComplaints6PayoutsContract terms
Review signals

Review signal profile

How review-derived evidence enters the score — what was collected, what was filtered, and how it distributes across aspects. A signal profile, not an archive of individual reviews.

1,693 signals collected → 1,680 passed filters → 1,292 used in the current score.

A signal is one filtered data point — not one review, and not one person.

Collected1,693
passed filters1,292
Used1,292
Why signals were excluded
  • 283No gradeable aspect
  • 104Too short to score
  • 1Non-English · filtered
  • 13Likely fake · filtered
Aspects with enough evidence
✓ UX quality (882)✓ Payouts (494)✓ Bonuses Fairness (359)✓ Support (353)✓ KYC (143)✓ Responsible gambling (12)
Collected
1,693signals
Filtered out
40124% set aside
Used
1,29276% of collected
Sources
44 used in score

A signal profile — not a review archive. IndexFair does not host or republish individual reviews. We report how many signals were collected, how they were filtered, and how they distribute. The source platforms retain the original text.

Signal funnel

Used 1,292Too short 104No gradeable aspect 284Likely fake 13

Why signals were set aside

401 filtered
No gradeable aspect283
Too short to score104
Non-English · filtered1
Likely fake · filtered13
What we don't publish. The exact filter thresholds resist gaming and stay internal. We disclose the categories and counts of what is set aside — never the rules that would let a bad actor tune around them.

Source mix

Source mix (4)
Review platforms1Collected1,413Used1,171
App stores2Collected219Used101
Social media1Collected61Used20

Signals by aspect

volume used · not a score
UX quality882
Payouts494
Bonuses Fairness359
Support353
KYC143
Responsible gambling12

These bars show how many signals each aspect drew — coverage and volume, not the aspect's rating. For the scored analysis built on them, see Evidence.