Check exact redirect mappings for chains, loops, conflicting sources and missing migration coverage. Your CSV stays in your browser.
Files and pasted content are processed locally, never uploaded or saved. Closing or refreshing clears them. Usage events contain the tool name and action only.
Export your planned exact redirects with source and target columns. Use either complete URLs or /paths consistently.
Optionally supply old and new URL inventories to find unmapped old URLs and final targets absent from the new site list.
Review each finding, add notes and export the evidence. Verify live HTTP responses separately after deployment.
The result tables preserve the observations behind each finding. Filter rows to focus your review, add notes to the main table and export a CSV. Use the text report to keep the method and limitations alongside the data.
A local diagnostic answers a bounded question about the input you provide. It does not prove how a search engine crawled, indexed or ranked your site. Follow up with a live check or the relevant first-party report when the decision depends on that evidence.
No. The tool processes the input in this browser tab. It does not upload, save or fetch the supplied URLs. Closing or refreshing clears your input. Basic tool-name/action events never include file contents, filenames, URLs or queries.
Yes. Load the worked example and run the check to see a clearly fictional input and its output. Replace the sample with your own data before making decisions.
This reads a mapping file; it does not crawl destinations or apply redirects. Regex and prefix rules are rejected. Each input is limited to 2 MB and 20,000 records.
Yes. Download every result table as CSV or save a text report with method notes. Reviewer notes appear in the corresponding table CSV. Exports escape formula-like cell values for safer spreadsheet use.
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