Canonical: https://1968labs.com/resources/redirect-map-checker

> Check a website redirect CSV for duplicate sources, loops, chains and unsupported path formats before a migration. Runs locally in your browser.

Free tool · runs in your browser

# Find redirect-map mistakes.

Paste an exact-path CSV before changing your website’s URLs. Find duplicate sources, loops and unnecessary chains.

[Use the tool](https://1968labs.com/resources/redirect-map-checker#tool-workspace)

## Redirect map checker

Your entries stay in this browser. Nothing is uploaded or saved by this tool.

Form fields: Redirect CSV. [Use the form on the website.](https://1968labs.com/resources/redirect-map-checker)

## Before launch.

This tool reads the map you provide. It does not fetch your site or verify server rules.

1.  Confirm each destination is the right replacement.
2.  Implement the rules in your hosting platform.
3.  Test the live status code and final URL.
4.  Check queries, slash handling and any platform-specific patterns separately.

[Get the launch checklist](https://1968labs.com/resources/website-redesign-checklist)

## A useful next step.

[Website migration](https://1968labs.com/services/website-migration) [Website redesign launch checklist](https://1968labs.com/resources/website-redesign-checklist) [Website Redesign SEO Checklist](https://1968labs.com/blog/website-redesign-seo-checklist)

Work with us

## Want help with the website itself?

Tell us what you’re trying to improve.

We’ll reply within 24 hours.

[Services and starting prices](https://1968labs.com/services)

Form fields: Your name; Your email; Phone number; Your question. [Use the form on the website.](https://1968labs.com/resources/redirect-map-checker)