WCAG 2.1 Quick Reference
All success criteria at a glance with descriptions
Language of Page
The default human language of each web page can be programmatically determined.
Learn more →Language of Parts
The human language of each passage or phrase in the content can be programmatically determined.
Learn more →On Focus
When any component receives focus, it does not initiate a change of context.
Learn more →On Input
Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised.
Learn more →Consistent Navigation
Navigational mechanisms that are repeated on multiple web pages occur in the same relative order.
Learn more →Consistent Identification
Components that have the same functionality within a set of web pages are identified consistently.
Learn more →Error Identification
If an input error is automatically detected, the item in error is identified and the error is described to the user in text.
Learn more →Labels or Instructions
Labels or instructions are provided when content requires user input.
Learn more →Error Suggestion
If an input error is detected and suggestions for correction are known, then the suggestions are provided to the user.
Learn more →Error Prevention (Legal, Financial, Data)
For web pages that cause legal commitments or financial transactions, submissions are reversible, checked, or confirmed.
Learn more →Test your site against these criteria
WCAG Pulse automatically checks your website for WCAG 2.1 compliance.
Start Free Scan