Analytics and the crawl see different sites

Checks

• Visited page not reachable by links page_with_visits_not_reachable_by_links
• Crawled page with no visits for a year crawled_page_with_no_visits_for_a_year
• Different tracking IDs in different sections different_tracking_ids_on_different_sections
• Visited page now returns an error page_with_visits_now_returns_error
• Tracking tag present but no data tag_present_but_no_data

Findings

• Pages with visits that the crawl cannot reach or that return an error
• A page has been on the site for a year and nobody visited it
• Sections of the site report to different analytics accounts, or to none that is connected

What this relies on

A page with visits exists and matters, even when no link leads to it.

How to verify by hand

Analytics landing pages and Search Console pages.