Check
No dead-link pollution on core pages
No dead-link pollution on core pages is check A4 in the fifteen-point audit. Links from the pages that matter (home, navigation, footer, pricing) resolve without 404 or redirect chains.
What counts as evidence
The status code of every internal link found on the core pages we checked.
How to fix it
Fix navigation and footer links first, then links inside content. Remove a page from sitemap and llms.txt in the same change that deletes it.
Where this sits
A is the group: accessibility, comprehension, or extractability. The groups run in order — a crawler that cannot reach the page never reaches the reading checks — so fix the earliest failing group first. The full definition of all fifteen items is in the standard.