Resources
Short guides, with more charts and examples than text. Every number has a source and a year, and each guide shows the date its facts were last checked.
Standards and laws
What WCAG and the main accessibility laws ask for, in plain words.
WCAG explained: principles, levels and versions
What WCAG is, what Levels A, AA and AAA mean, and which version the rules name, shown in charts and tables.
Accessibility laws at a glance
Which accessibility laws cover websites, who each one names, and the WCAG version and dates each one sets.
Accessibility requirements by industry
Which accessibility rules usually come up in each industry, the standard each one names and the website journeys that matter most.
What's changing: accessibility dates to know
The accessibility dates ahead through 2030, what moved in 2026, which standards are changing and what still has no date.
A short history of web accessibility
A timeline of web accessibility from 1973 to today: the laws, the WCAG standards, the court cases and the technology.
VPATs and ACRs explained
What a VPAT is, how it differs from an ACR, who asks for one, and how to read the answers in the report.
Accessibility terms and notation, decoded
Plain definitions of the abbreviations and terms you will meet in an accessibility audit report or a demand letter.
How people use the web
How people get around a website with a keyboard, a screen reader or low vision.
Who web accessibility is for
Who benefits from an accessible website: the numbers, the types of disability, the tools people use and what each group needs from a site.
How screen readers work
How a screen reader turns a web page into speech, how people move around with one, which ones people use, and what breaks them.
Keyboard access and focus
How people use a website with only a keyboard, what WCAG 2.2 asks for, and a quick check you can run on your own site.
Color contrast, explained
What a contrast ratio is, the ratios WCAG 2.2 asks for, and how to check and fix your own colors.
Testing and fixing
How to check your own site, and how the common barriers get fixed.
The most common accessibility barriers
The six errors WebAIM's yearly scan detects most often on home pages, what each fix looks like in the code, and the barriers a scan misses.
Automated scans vs. testing by people
What an automated accessibility scan can find, what it misses, and why testing by people has to go with it.
Do accessibility overlays fix a website?
What an accessibility overlay widget is, what a script can and can't change on your site, and what the public record shows.
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