Regression pages
The pages captured before and after an update round, and compared.
A site's Regression page lists the pages the platform captures around an update round: each with its address, its comparison threshold, and its monitor status. The package sets how many a site may have.
Before a round's updates the platform captures each page; after them it captures each again and compares. A difference above the page's threshold fails the round's verification, and the round rolls back. Choose pages that show the site's real templates — the home page, a post, a product, a form — rather than pages that change on every visit.
The same pages are the ones monitoring checks.