How we test online casinos

Last updated: 1 May 2026

Every review on wingrabs follows a real test of the casino with our own money. This document spells out exactly what we check, in what order, and how we compute the final 1–10 score. We publish it so every rating we give is auditable.

1. Casino selection criteria

We review casinos that genuinely serve our audience: accept the local currency or EUR, support locally-popular deposit methods, ship a Polish/German/English UI, and hold a valid license (Curacao eGaming, Malta Gaming Authority, Anjouan, MGA, Gibraltar). Unlicensed casinos or those with documented unfair practices land on the blacklist instead.

2. Test procedure

Each test is run by a single editor and lasts at least two weeks. The stages:

  • Account registration with the editor's real personal data — we check required fields, form validation, e-mail and SMS verification.
  • First deposit of about 50 EUR / 50 USD equivalent — testing every payment method the casino advertises (BLIK, card, e-wallet, crypto where applicable).
  • Full KYC procedure: uploading IDs, selfie, proof of address, and timing how long verification takes.
  • Game session: minimum 200 spins on slots from a mix of studios (Pragmatic Play, NetEnt, Hacksaw, Nolimit City), plus 1–2 hours at live tables.
  • Welcome bonus test: qualifying deposit, attempting to clear wagering, checking that real-world restrictions (max stake, excluded games) match the published terms.
  • First withdrawal: total time measured (from request to funds received) using at least two different payout methods.
  • Customer support test: three queries at different times of day (morning, afternoon, late night), measuring response time and answer quality.

3. The four scoring criteria

The final 1–10 score is a weighted average of four criteria. Each is rated independently from 1–10, then weighted:

  • Safety and licensing (weight 30%) — license tier, operator transparency, SSL/TLS, 2FA policy, responsible-gambling tools, data protection.
  • Payments and withdrawals (weight 25%) — withdrawal speed, available methods, daily/monthly limits, KYC turnaround, communication during delays.
  • Game and bonus offering (weight 25%) — number and quality of game studios, live availability, fairness of wagering, transparency of bonus terms, market-relative competitiveness.
  • Customer support and UX (weight 20%) — contact channels (chat, email, phone), localization quality, page speed, mobile UX, interface clarity.

4. Review updates

Casinos scoring below 5 don't make the catalog — they go to the blacklist with the documented complaints. 5–6 means "average, with material flaws". 7–8 are solid, recommended casinos with minor downsides. 9–10 — exemplary casino with no significant concerns.

Every review is updated at least once every three months. Updates can be more frequent if: the casino changes its license, changes operator, introduces new withdrawal restrictions, we receive verified player complaints, or it gets sanctioned by a regulator. The last verification date and the editor's name appear in the review header — we don't publish anonymous ratings.

5. Independence from operators

We earn affiliate commission from "Claim bonus" links, but the commission does not influence the score. The casino operator has no say in: (a) review content, (b) ranking position, (c) whether the review gets published at all. Casinos with serious problems land on the blacklist with documented complaints regardless of any existing partnership. The full editorial-policy document lives on our /about page.

6. Reporting a casino problem

If you have a documented issue with any casino on our list (refused withdrawal, unfair clauses, account block after a win), write to complaints@wingrabs.com with evidence (correspondence copies, case number, chat screenshots). Every verified complaint is taken into account at the next review update.