Primary sources first
We base factual claims on primary sources wherever possible: the W3C for WCAG, the U.S. Department of Justice and ADA.gov for U.S. law, ISO and the PDF Association for PDF/UA, Section508.gov for federal practice, and published research for statistics. Each guide lists its sources at the end so you can check them yourself.
Review and dates
Every guide shows the date it was last reviewed. We review guides when a standard or rule changes, when a cited source is updated, and at least once a year. If a fact changes, the guide changes.
Not legal advice
Our guides explain standards and practice in plain language. They are not legal advice. When we describe laws, we link to the official source, and we encourage you to confirm how they apply to you with your own counsel.
How we use AI
We use AI tools to help research, draft and check our work, the same way we use them in accessibility testing. A person on our team reviews every guide for accuracy, checks the sources and decides what is published.
Independence
We do not name or rank competitors, and we do not accept payment to recommend products. When a guide discusses a type of product we also sell, such as accessibility toolbars, we say so on the page.
What we will not claim
We do not describe any tool, including our own, as making a site automatically compliant. We do not promise legal outcomes. When the evidence is mixed, we say so.
Accessible by design
Our guides are written to meet WCAG 2.2 Level AA: real headings, meaningful link text, sufficient contrast and plain language. If something on our site does not work for you, please tell us. See our accessibility statement.
Corrections
If you find an error, email hello@ax4e.com with the page and the issue. We review every request and update the guide and its review date when a correction is needed.