Last updated: May 2026 — Marek Wiśniewski, Catharina
At Catharina, we understand that choosing a reliable online casino is a critical decision. Our rating methodology is designed to provide transparent, comprehensive evaluations of kasyno internetowe platforms to help players make informed choices. This page explains our criteria, process, and commitment to independence.
We evaluate every online casino across six fundamental categories that matter most to players:
We assess welcome bonuses, deposit matches, free spins, and ongoing promotions. Our analysis includes:
A diverse game portfolio is essential for player satisfaction. We evaluate:
We examine deposit and withdrawal options, including:
Quality support is crucial for player safety and satisfaction. We check:
Trust and legitimacy are non-negotiable. We verify:
In 2026, mobile gaming is essential. We evaluate:
Every casino undergoes rigorous testing before receiving a rating:
Stage 1: Research - We compile licensing information, terms and conditions, and technical specifications.
Stage 2: Account Creation - Our team creates accounts and tests the registration process, bonus claims, and verification procedures.
Stage 3: Hands-On Testing - We play games, test payment methods, explore mobile platforms, and interact with customer support.
Stage 4: Analysis - We compile findings, analyze data, and compare against our rating scale.
Stage 5: Publication and Updates - Reviews are published and regularly updated to reflect changes in casino operations.
Catharina maintains complete editorial independence. We do not accept payments from casinos for favorable reviews, and our ratings are never influenced by affiliate partnerships. Our sole obligation is to our readers. All reviews are conducted objectively using identical criteria for every platform. Author: Marek Wiśniewski. Last updated: 2026.