WQI.web​qualityindex

Accessibility

WCAG 2.2 Level A

The minimum-viable accessibility baseline. If you fail Level A, sighted-mouse users are probably also having a bad time.

Authority
W3C
Version
2.2
Jurisdiction
Global
Source
w3.org
Last reviewed
2026-04-28
Last verified
pending

What it is

The lowest of three WCAG conformance levels. Captures the most fundamental accessibility requirements — anything that would make the site outright unusable for assistive-tech users.

Why it matters

Level A is table-stakes; nobody designs *to* Level A as a goal, but failing it is a sign of deeper problems. Use it as an early-warning signal on the way to AA.

Who it applies to

Applies to every public-facing website.

How WQI scores it

Web Quality Index considers this standard satisfied when all of the 4 supporting factors pass.

# Factor Status
54 Image alt text coverage planned
55 Heading hierarchy validity planned
57 ARIA labels presence and validity planned
58 Skip-to-content link planned

0 of 4 supporting factors are currently collected. Sites where the remaining 4 haven't been measured will show as partial or unknown on this standard until the data lands.

Related standards

Superseded by
WCAG AA
See also
WCAG AA

Standards that share factors with this one

Auto-computed from overlapping factor tickets in satisfiedBy, excluding standards already listed under "See also" above. Strong overlap suggests these standards rise and fall together when sites are scored.

Other references