A score-regression alert fires when a monitored site's latest audit scores 10 or more points lower than the previous one. The alert includes both scores, the delta, and a link to the audit page.
Most regressions come from:
- Schema removed - someone redeployed the homepage without the JSON-LD block.
- robots.txt now blocks AI crawlers - a default robots.txt got reverted.
- llms.txt deleted - file disappeared during a host migration.
- Theme update wiped meta tags - common after a CMS theme bump.
- Cert expired or moved to plain HTTP.
Open the audit and compare the per-category points to the previous audit (use the audit history page on /app/sites/{id}/audits). Whichever category dropped points is your culprit.