Regulation dates create waves of searching. As a compliance deadline nears, organisations look for what applies to them, and content published well before that date is what gets found during the rush.
Self-assessment questions convert late but reliably. Somebody checking whether their own site passes usually discovers it does not, and the page that showed them how becomes the obvious place to ask for help.
Overlay comparisons reach the disappointed. People who bought a widget and were then told it was insufficient search for a second opinion, and an honest explanation collects clients with budget already committed.
Public bodies search in procurement terms. Accessibility statements, conformance reports and audit evidence are the words in a tender document, and matching them reaches buyers with a formal process and real budgets.
Documents fail more often than websites. Most organisations hold thousands of PDFs, and remediation of PDFs and Office files is searched separately, budgeted separately and served by almost nobody.
Accessibility does not end with the report. Editor training, a statement that has to stay current and a re-check after the next redesign turn a single audit into an ongoing engagement, and people search for that too.
Apps are a separate search entirely. Native accessibility, screen reader support on mobile and app store requirements bring a different buyer, and a page about websites will never reach them.
Different people inside one organisation search differently. A developer types about focus order and ARIA; a compliance officer types about deadlines and evidence. One page cannot serve both, and two will.