What to check periodically.
CRAWLING AND INDEXING
robots.txt correct and not blocking anything important No unintended noindex directives Sitemap present, current and submitted Important pages indexed No large number of pages excluded as duplicates
URLS AND REDIRECTS
One canonical version: https, and one of www or non-www
All variants redirect in a single hop No redirect chains No broken internal links
ON-PAGE
Unique title tags on every page Meta descriptions on important pages One main heading per page Images with alt text
PERFORMANCE
Core Web Vitals passing Pages loading acceptably on mobile Caching enabled Images optimised
SECURITY AND ACCESS
HTTPS enforced site-wide No mixed content No manual actions or security issues in Search Console
CONTENT
No thin pages that should be removed or improved No duplicate content across URLs
TOOLS
A site crawler finds most of this automatically.
