Redirect map checker for site migrations
Paste the URLs of the live site and of the new site. The checker marks the paths that are preserved, suggests a destination for the paths that moved, and lists every URL with no destination. It runs in the browser; the lists never leave the page.
No account. No network request. No invented result.
What it does
- Normalises every entry to a path: drops the query string and the fragment, removes a trailing slash.
- Marks a path preserved when the exact same path appears in both lists.
- Suggests a redirect when the old path is gone and exactly one new path shares its last segment, or every meaningful word of that slug.
- Lists every old path that has no destination instead of choosing one for it.
- Builds a CSV with three columns — from, to, decision — to copy or download.
What it does not do
- It does not crawl either site. It only reads the two lists that are pasted.
- It does not test a redirect, a status code or a destination page. It compares paths.
- Its suggestions are rules of thumb, not a redirect contract. A tie or a weak match is reported as no destination, never guessed.
- It does not change anything on a site, and it does not replace the URL matrix a migration runs before cutover.
How to use it
- Paste the URLs from the live site into the first box, one per line. Full URLs or paths both work.
- Paste the URLs from the new site into the second box.
- Press Compare. The checker normalises every entry to a path, then labels each live path.
- Review the three groups: preserved, redirect suggested, and no destination.
- Copy or download the CSV and take the suggested redirects to review. Do not deploy them unreviewed.
The checker needs JavaScript because it computes in the browser. With JavaScript off, it says so and computes nothing. The guide to building a redirect map from a crawl covers the full method, and the redirect map entry defines the terms.
Compare the two URL lists
Paste one URL or path per line. Every entry is normalised to a path: query strings and fragments are dropped, a trailing slash is removed. Duplicate paths are counted once.
A path is preserved when the exact same path appears in both lists. A redirect is suggested when the old path is gone and exactly one new path shares its last segment, or every meaningful word of that slug. A tie, a weak match or an unknown path is reported as having no destination.
Paste both lists, then press Compare. Nothing is computed until you do.
- Live paths read
- 0
- New paths read
- 0
- Preserved
- 0
- Redirect suggested
- 0
- No destination
- 0
| From | To | Decision |
|---|
URLs with no destination
Free website check
Find out why clients aren’t finding you.
A short report by email within two working days: how the site currently appears on Google and in AI answers, what to fix first, and what we would do in your first month.
- Free, no card
- Your site stays untouched
- Reviewed by a person
No search rankings, exact traffic or AI-answer inclusion is promised.