Sitemap URLs Comparison

Compare two sitemaps and see exactly which URLs were added, removed, or kept. Paste a saved sitemap from before a migration against the current one.

Why use our Sitemap Comparison

See exactly what changed

Added, removed, and retained URLs, listed separately, instead of manually diffing two sitemap files.

Useful for migrations and redesigns

Compare a pre-migration sitemap snapshot against the current one to confirm every important URL survived the move.

Catch accidental removals early

A page silently dropped from the sitemap during a redesign is easy to miss until traffic drops, this surfaces it immediately.

Free, no signup

Compare two sitemap URLs instantly, no account required.

Sitemap A (before) *

Sitemap B (after) *

Real Sitemap Comparison example: before vs. after

Comparing the sitemap right before a CMS migration against the sitemap a week after, to confirm nothing important was lost.

Before · Assumed

URLs expected lost

The migration checklist said every page was mapped to a new URL.

After · Actually found

URLs removed

14 previously indexed pages had no equivalent in the new sitemap, caught before traffic dropped instead of after.

Frequently Asked Questions

Where do I get a saved copy of my old sitemap?

If you didn't save one before a change, check the Wayback Machine for an archived version, or pull the URL list now with our Sitemap URL Extractor before making further changes and save it for next time.

Does the order of URLs matter?

No, this compares the sets of URLs regardless of order, only presence or absence matters for the added/removed/retained result.

Can I compare a sitemap index against itself over time?

Yes, sitemap indexes are followed automatically on both sides, so you can compare two full sitemap structures, not just single files.

Why would URLs be removed intentionally?

Deliberate pruning of thin or duplicate content, consolidating pages, or retiring outdated content are all normal reasons, this tool just shows you what changed so you can confirm it was intentional.

Check if removed pages still redirect correctly

SEOMentor's site crawl flags broken links and redirect chains across your whole site automatically.

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