WCAG-EM
The W3C’s step-by-step methodology for evaluating how well a whole website conforms to WCAG.
WCAG-EM, the WCAG Evaluation Methodology, is the W3C’s process for evaluating a whole website or app against WCAG. Version 2.0, a W3C Group Note of July 23, 2026, describes a step-by-step method: define the scope, explore the site, select a representative sample of pages and templates, evaluate the sample, and report the findings.
It exists because evaluating every page of a large site is impractical, and because two evaluators need to be able to reach similar results from the same sample. If you commission an evaluation and the evaluator follows WCAG-EM, you get a report whose scope, sample, and method are stated, which is what a procurement team or a regulator wants to see.
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