2. Introduction to WCAG
10 Key Guidelines
The Web Content Accessibility Guidelines (WCAG 2.1) include 13 guidelines, made up of 78 success criteria (or WCAG 2.0 has 12 guidelines, 61 success criteria). Not all of these guidelines are applicable to all websites, though there are some that are more frequently relevant than others.
Required Reading: Earlier in this unit, we encouraged you to become familiar with 10 Key Guidelines [PDF] that we provided in a downloadable document. If you have not already done so, please take the time now to download and read this document.