How many success criteria are included in WCAG 2.1?

The correct answer is that WCAG 2.1 includes 78 success criteria. This framework builds upon the previous version, WCAG 2.0, adding additional guidelines to address accessibility needs for a wider range of user scenarios, especially for mobile devices and users with cognitive and learning disabilities.

While the provided answer indicates 80, it is crucial to note that the precise count of success criteria is 78. This may lead to confusion with the sum total of success criteria if one includes all levels of conformance (A, AA, and AAA) or if there’s a misunderstanding about the addition of future criteria or authoring tool guidelines, which are separate from the success criteria themselves.

This highlights the importance of being precise when discussing accessibility standards, as the correct interpretation and knowledge of these figures are vital for effective web accessibility practices.