Paste or open your CSV
Use a comma-separated file with source,destination headers and up to 1,000 rules. Paths or full HTTP URLs are accepted. Input is limited to 1 MB.
Redirect Map Checker
Find chains, loops and duplicate sources in a two-column redirect CSV before a migration, entirely in your browser.
Free
No sign-up
Runs in your browser
Result
Your result will appear here
This is a local review, not a live crawl or ranking score. Review the limits below.
What is Redirect Map Checker?
Redirect Map Checker is a free online seo tool from GigaTools. Find chains, loops and duplicate sources in a two-column redirect CSV before a migration, entirely in your browser. It runs entirely in your web browser, so nothing is uploaded and it works on any device without installing software.
Common uses
- Review a website migration spreadsheet before release.
- Find competing destinations for the same old URL.
How it works
How to use Redirect Map Checker
Trace the supplied map
Review duplicate sources, chains and loops. Ambiguous sources are excluded from tracing; each path is followed for at most 100 hops.
Decide and test before deployment
Confirm the intended final destinations yourself, update the real redirect configuration and test live responses. This tool does not deploy rules or check destination availability.
FAQ
Good to know
How do I use Redirect Map Checker?
1. Paste or open your CSV: Use a comma-separated file with source,destination headers and up to 1,000 rules. Paths or full HTTP URLs are accepted. Input is limited to 1 MB. 2. Trace the supplied map: Review duplicate sources, chains and loops. Ambiguous sources are excluded from tracing; each path is followed for at most 100 hops. 3. Decide and test before deployment: Confirm the intended final destinations yourself, update the real redirect configuration and test live responses. This tool does not deploy rules or check destination availability.
Does this check live redirects?
No. It follows only the relationships in your CSV. It cannot verify HTTP status codes, destination content, server rule order, query forwarding or whether a rule is deployed.
How are URL matches compared?
Surrounding spaces are trimmed. Absolute URLs use browser URL serialization; paths remain exact. Full URLs and paths are different keys. Case, query strings, percent encoding and trailing slashes can affect matches. Regex and prefix rules are not interpreted.
Will it choose the correct destination for me?
No. It flags conflicts and shows the supplied map. Choose destinations based on the real replacement content, then test them. A chain or loop count is not an SEO ranking score.
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