Independent composite scores synthesised from public review feeds and regulatory data, pinned to methodology v2.0.
Ranked by confidence-adjusted score: a tighter ± margin can place a brand above a higher but less certain score.
IndexFair rates UK online bookmakers using a three-block composite score: regulatory standing, user-experience signals from public reviews, and observable operational data. The current ranking covers sportsbooks licensed by the UK Gambling Commission. Each score derives from the published methodology — no editorial promotion, no operator payments, no affiliate-influenced placement. Brands below the sample-size threshold show 'rating updated' rather than a number; the threshold is published, and the brand appears once enough recent signals accumulate.
The IndexFair score for a UK bookmaker brand combines three blocks: Trust & Compliance (35% weight), User Experience (40%), and Operational & Corporate (25%). The Trust & Compliance block reads UKGC licence status, the complaints register, and enforcement history. The User Experience block aggregates review signals across Trustpilot, AskGamblers, Reddit, and operator-specific complaint channels, applying time-decay and Bayesian shrinkage so low-volume periods don't whipsaw the score. The Operational & Corporate block reads payment-processor stability, withdrawal-latency reports, and ownership transparency from Companies House.
For sportsbook-specific aspects, IndexFair scores market depth, in-play coverage, settlement accuracy, withdrawal speed, KYC efficiency, customer support responsiveness, and bonus terms clarity. Each aspect carries a published weight calibrated by the methodology committee; the full catalogue and current weights live at /methodology.
Scores recompute on a daily 03:00 UTC cron and on outbox-driven recomputes when high-volume review data lands. The 'last recomputed' timestamp appears on every brand card. Confidence intervals (±0.x) reflect sample variance and effective sample size — wider intervals mean smaller samples or higher source divergence.
IndexFair does not display affiliate-influenced rankings. The editorial-independence firewall at /policies/firewall lists brands where affiliate revenue is suppressed in code. Scores are not operator-editable; factual disputes (licence status, regulator data) route through /privacy/contact under the DMCC framework. The methodology is versioned and append-only at /changelog — every weight change is dated and reversible.