DiffiCat

Compares a website against another copy of it on page existence, content and visual regression, page by page with screenshots of the changed regions: a migration, redesign, relaunch, staging-versus-production or new-host check. Free up to 40 comparison pages, 5 page discoveries and 5 screenshots a day per client address with no key or account; beyond that a prepaid key, a Pro account key or an HTTP 402 payment in USDC on Base.

Skills

• Discover pages
  Lists the pages of a site and the matching page on the other copy, from the sitemap and a crawl.
  sitemapcrawlurl-mapping
• Capture screenshot
  Takes a full-page screenshot of one URL at a chosen viewport.
  screenshotcapture
• Compare two sites
  Runs a page-by-page comparison of two origins or a list of page pairs: existence, content and visual diff, with a per-page report and diff images.
  migrationvisual-regressioncontent-diffqa
• Compare against a snapshot
  Compares a live site, or another snapshot, against a snapshot captured earlier.
  snapshotbaselineregression

How to call

https://app.difficat.com/mcp

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