Editorial Methodology

How companies are ranked

Each company is assessed against the criteria stated in the "How we ranked" section of the guide on the homepage. Data points come only from the company's own official website.

If an official website does not state a data point, the guide does not present it as a fact and the table cell reads "Not stated". Positions follow the criteria and scoring described in the guide and reflect how completely a company documents them, not a judgement about the quality of its service.

Reviews and corrections

The guide is reviewed when company websites change. To report a factual error, write to contact@example.com with the link to the official page that confirms the correct data. Verified corrections are published in the next update.