LINK ANALYSIS
Redirect Mapping Validator
Redirect maps grow over several migrations, and old rules start pointing at URLs that are themselves redirected. Chains slow every visit and loops break pages entirely. This validator checks the whole map at once and can test the first rows against the live site.
- Runs in your browser
- Nothing you paste is uploaded
- Free, no sign-up
- CheckChains inside the map, with the final destination
- CheckLoops and self-redirects
- CheckDuplicate old URLs
- CheckMalformed new URLs
Free
no sign-up, no usage limit
0 uploads
what you paste stays on your device
5 checks
what the tool looks at
Offline
works once the page has loaded
Loading the tool…
HOW IT WORKS
How to use the Redirect Mapping Validator
A two-column map: old URL, new URL.
Paste the map as two columns: old URL, new URL.
Fix loops and self-redirects, then flatten chains.
After launch, run the live check to confirm the first rows land where expected.
WHAT IT CHECKS
What it looks at, and how to read it.
Problems by row, and (optionally) a live check of where the first 25 old URLs really land.
What it checks
- Chains inside the map, with the final destination
- Loops and self-redirects
- Duplicate old URLs
- Malformed new URLs
- Live landing page and status for the first 25 rows
How to read the results
- A chain means the old URL should point straight at the final destination.
- "Right place, temporary redirect" means the server uses 302 where 301 is intended.
The concepts behind it, in the SEO glossary: 301 redirect.
GOOD TO KNOW
Common mistakes, an example and the limits.
Common mistakes
- Adding new redirects on top of old ones without flattening.
- Mixing http and https versions of the same URL as different rows.
A worked example
A map of 400 rows from three migrations has 38 chains; flattening them sends every old URL to its final page in one hop.
Limitations
- The map checks run in your browser. The live check sends up to 25 old URLs to the Ndovu tools API, which fetches them.
FAQ
Questions about the Redirect Mapping Validator
Straight answers about what it does and where its limits are.
Does the map leave my browser?
The checks of the map itself run locally. Only the live check sends the old URLs it tests to the tools API.
Why only 25 live?
To keep the free service available to everyone. Run again after a minute for the next rows.
Need this for a whole website, over time?
The NdovuSEOLabs platform connects your own Search Console, analytics and server logs, and audits every page on a schedule.