Build and validate a comprehensive 301 redirect map pre-launch.
- Build and validate a comprehensive 301 redirect map pre-launch3 cited sources1 category
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Why this matters
To preserve SEO equity and avoid ranking loss during HTTPS migration by ensuring all old URLs permanently redirect to new HTTPS URLs without chains or errors.
Hypothetical standard operating procedure
Adapt this example to your site, access, tools, and change process. It is our suggested procedure, informed by the sources below.
- Crawl current site and export all URLs with status codes and traffic data.
- Map each old HTTP URL to its exact new HTTPS URL counterpart, prioritizing high traffic and linked pages.
- Implement redirects as 301 at server-level, flattening any existing chains into direct redirects.
- Test redirect map exhaustively in staging and pre-launch with migration redirect validator tools.
- Confirm redirect behavior post launch for sample URLs to ensure correct 301 status and landing page response (200).
Watch for
Avoid redirect chains and redirecting multiple URLs to homepage, which dilute link equity and confuse crawlers.
Definition of done
All old URLs have a direct, single-hop 301 redirect to corresponding new HTTPS URLs, verified with no chains or errors.
Sources & attribution
Original checklist wording and example SOP by Best SEO Checklist, using source-grounded AI assistance. Editorial contact: Ted Kubaitis, @tedkubaitis on Teams. Check current source guidance before implementation.