WCAG version: 2.0
Collection of success criterion published in WCAG version 2.0 in 2008.
2.4.6 Headings and Labels
Headings must describe what follows. Labels and buttons must clearly communicate what information is needed or what action will happen.
2.4.7 Focus Visible
A visible indicator must show which element is currently focused when navigating with a keyboard.
2.4.8 Location
It must be clear where you are within a set of pages (e.g. using breadcrumbs, highlighted menu items, or headings).
2.4.9 Link Purpose (Link Only)
The purpose of each link must be clear; from the link text alone; without relying on surrounding context.
2.4.10 Section Headings
Related content must be organized into clear sections using headings.
3.1.1 Language of Page
Each page must have a <html lang=""> attribute that matches the main language of the page.
3.1.2 Language of Parts
Any parts of the content in a different language must be marked with the correct lang attribute. Expressions borrowed from another language (like “déjà vu” in English) do not need this, unless pronunciation or understanding would be affected.
3.1.3 Unusual Words
Unusual terms, jargon, or figurative language should be avoided when possible, or explained the first time they appear.
3.1.4 Abbreviations
Abbreviations and acronyms should be avoided when possible, or explained the first time they appear.
3.1.5 Reading Level
If content requires reading skills above lower secondary education (around 9th grade), provide a simpler version, a summary, a visual aid, or a spoken version to help with understanding.