Save, Open & Compare Crawls to Catch SEO Regressions Early

Why do SEO regressions happen?

Most SEO damage after a release is accidental. A template change removes a canonical tag, a redirect rule breaks a section of the site, or a navigation update drops links to important pages. Nobody notices until traffic changes weeks later.

Save a baseline

Crawl the site while it is in a known good state and save the crawl. Saving and reopening crawls is available on paid plans. This baseline is what you compare against later.

What a comparison shows

Crawl comparison lines up two crawls and shows what changed between them. Rows are marked as changed, added, removed or unchanged, so you can focus on the differences instead of rereading thousands of unchanged URLs.

• New 404 and 5xx responses that were not present before.
• Pages whose canonical, title, meta description or indexability changed.
• URLs that disappeared from the crawl, which can mean lost internal links.
• New URLs that appeared, such as parameter pages created by a filter.

A release checklist

Run this routine around every significant deployment.

• Crawl before the release and save it.
• Crawl again after the release.
• Compare the two and read the removed and changed rows first.
• Open the SEO Master audit on the new crawl and look for checks that moved from Pass to something worse.

Keep it regular

A comparison is only useful if the baseline is recent. Save a new baseline after each verified release, and keep the dated crawls so you can answer the question of when something changed.

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