Domain migration history records how a website moved between addresses over time. It becomes useful when old links still lead through earlier domains or a new migration is planned. The practical risk is losing access to important content, rather than having an unfavourable number of moves on a domain record.
Map every known starting address
Collect former domains, subdomains, protocol variants and important historical paths. For each, record the intended current destination and who controls the old host. Include frequently linked PDFs and other resources, not just service pages. A migration may appear complete from the current homepage while old customer bookmarks still fail. This inventory separates the history you can test from addresses that are only mentioned in old project notes.
Test where the old URLs end up
Request representative old URLs and record each HTTP status code and location until the final page loads. Check for loops, unnecessary chains, certificate failures and unrelated destinations. Google’s site-move guidance recommends direct permanent redirects and retaining them for at least a year where possible. Confirm that the final canonical URL agrees with the intended destination.
Keep the test results with the migration map, including the first response, final URL and observed page purpose. Assign responsibility for old-domain renewal and certificates as well as redirects. A technically correct rule cannot help visitors if the source host stops accepting requests, so these dependencies belong in the same maintenance record.
A Perth rebrand with an older move
Imagine a Perth engineering firm that moved from its founder’s name to a company name, then rebranded again. A trade association still links to a useful capability statement on the first domain. The audit follows that link through both moves and finds a dead intermediate host. Restoring a direct route to the current equivalent helps that audience. The team should also update links it controls and request corrections to important external references.
Prioritise the paths that matter
Start with URLs that attracted enquiries, links or frequent customer use. Keep a dated mapping and test it after hosting changes. Use Google Search Console and server records to monitor whether the expected pages remain accessible. Refined IT’s technical SEO work can review historical mappings before another move. Even a careful migration can involve temporary search fluctuations; a working redirect is a requirement for continuity, not a promise of an unchanged position.
Common questions
Should every old URL go to the new homepage?
No. Use a relevant replacement where one exists. Sending unrelated old pages to one homepage can confuse visitors and may be treated as a soft 404.
Can I cancel an old domain immediately after a move?
That can break existing links and bookmarks. Review Google’s retention guidance, actual use and the business value of keeping the old address under control.
Terms in this guide
- HTTP status code — A response code communicating the result of a request. Examples include 200 for a successful response, 301 for a permanent redirect and 404 for a resource not found.
- Canonical URL — The preferred URL for a page when identical or substantially similar content is accessible through multiple addresses. A canonical link communicates a preference rather than forcing a redirect.
- Google Search Console — Google’s tool for monitoring a website’s presence in Search, including performance, indexing reports and URL inspection.
Related SEO guides
Apply this to your website
Explore Technical SEO for help planning and implementing the relevant changes, or discuss your website with Refined IT.