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. 2022 Feb 20;22:161. doi: 10.1186/s12879-022-07155-2

Table 4.

Accessibility WCAG 2.1 Guidelines violated by evaluated government websites

WCAG Guideline Reference Number of Violations per country
Australian Government Canadian Government UK Government French Government
Empty Headings [1.3.1 Info and Relationships (Level A; 2.4.1 Bypass Blocks (Level A); 2.4.6 Headings and Labels (Level AA)] 1
Missing Alternative Text [1.1.1 Non-text Content (Level A)] 1 1
Broken Skip Link [2.1.1 Keyboard (Level A); 2.4.1 Bypass Blocks (Level A)] 2
Empty Button [1.1.1 Non-text Content (Level A); 2.4.4 Link Purpose (In Context) (Level A)] 12
Contrast Error [1.4.3 Contrast (Minimum) (Level AA)] 4 28
Total Violations 1 7 1 40

UK United Kingdom; Web Content Accessibility Guidelines 2.1; Level A, Minimal compliance requirement; Level AA, Acceptable compliance recquirement