ShippedChange check — first crawl stores a baseline
Main content disappeared or thinned
This page isolates the “Main content disappeared or thinned” alert from the Main content collapse check (content.main_content_collapse).
What this page tests
Check Main content collapse (content.main_content_collapse), alert content.main_content_collapse.
Important pages lost most of their main content. Thin pages rarely earn strong rankings and may be treated like low-value or error-like results.
Why it matters
Important pages lost most of their main content. Thin pages rarely earn strong rankings and may be treated like low-value or error-like results.
How the fail is produced
Main column is short. A full sidebar still adds words, so this is the fail payload after a richer baseline. Redeploy from a long version to trip collapse.
Short main column for this fixture.