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SEO Migration Governance · guides hub

Every seo migration governance guide we've published.

Pillar guides, field notes, and case teardowns — filtered to the workflows that ship seo migration governance for real engagements. Filter by topic, browse by depth, and jump straight into the work.

About this hub

A curated reading path for seo migration governance.

Every entry below is either a long-form pillar guide or a field note from a live seo migration governance engagement — no curated third-party content, no reposts. Use the filters to narrow by topic and the pagination to work through the whole shelf.

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All guides · 13 total

Page 3 of 3.

Local coverage

Where we ship seo migration governance.

The learning track

Migrations as a risk-management discipline, not a launch event

Every major SEO traffic collapse we've been called in to diagnose after the fact traces back to a migration or replatform executed without a proper SEO risk plan — a domain change, a CMS switch, an HTTPS migration, or a URL structure overhaul. This track exists because migrations are the highest-stakes, most reversible-only-with-difficulty work in SEO, and deserve their own rigorous sequencing.

The guides below are ordered by the phase of a migration project: pre-migration planning and mapping first, execution and cutover second, and post-launch monitoring and recovery last — because skipping any phase, even under deadline pressure, is how a routine platform switch becomes a six-month recovery project.

The sequence we teach

  1. 1. Build a complete pre-migration URL and content inventory

    Every existing indexed URL needs to be catalogued with its current ranking, traffic, and backlink profile before planning where it maps to in the new structure.

  2. 2. Map every URL to its destination with a 301 redirect plan

    A 1:1 redirect map, tested before launch, is non-negotiable — redirecting everything to the homepage or relying on generic pattern-matching rules loses the specific relevance signal each URL had built.

  3. 3. Execute the cutover with a rollback plan

    Launch during a low-traffic window with DNS, redirect, and sitemap changes staged and tested, and a documented rollback procedure if critical issues surface immediately.

  4. 4. Monitor intensively for the first 30 to 90 days

    Daily GSC coverage and crawl-stat checks in the first weeks, tapering to weekly through the following two months, catch issues while they're still cheaply reversible.

Skills you should walk away with

  • Pre-migration URL inventory and prioritisation (traffic, rank, backlink value)
  • 301 redirect mapping and testing at scale
  • DNS, sitemap, and robots.txt cutover coordination
  • Post-launch GSC coverage and crawl-stat monitoring
  • Traffic-drop diagnosis and recovery remediation

Where teams usually go wrong

Redirecting everything to the homepage

A blanket homepage redirect for pages that don't have a clear 1:1 destination discards the specific relevance signal each old URL had accumulated and is treated by Google as a soft 404 pattern at scale, which can suppress the entire domain's crawl priority.

Launching without a tested rollback plan

If critical issues surface within hours of a migration going live, not having a tested rollback procedure turns a fixable problem into an extended outage while a fix is built under pressure.

Changing URL structure and design simultaneously

Combining a URL structure change with a full visual redesign in the same launch makes it far harder to isolate the cause if organic traffic drops post-launch.

Underestimating HTTPS or subdomain-to-subfolder migration complexity

Even seemingly minor infrastructure changes like moving a blog from a subdomain to a subfolder carry real redirect and canonicalisation risk and deserve the same rigour as a full replatform.

How to measure progress

  • Redirect map coverage rate (percentage of pre-migration URLs with a mapped destination)
  • Organic traffic and ranking retention at 30, 60, and 90 days post-launch
  • GSC coverage errors and their resolution time in the first 30 days
  • Crawl stats: Googlebot request volume and error rate pre- vs. post-migration
  • Backlink retention rate (percentage of referring domains still passing equity through the redirect)

Questions we get about this track

How long before a migration should SEO planning start?
Ideally two to three months before launch for a full site migration or replatform — the URL inventory, redirect mapping, and stakeholder sign-off process genuinely takes that long to do properly at scale.
Is it normal to see a temporary traffic dip after a migration?
A small, short-lived dip while Google recrawls and reprocesses the new URL structure is common and typically recovers within two to four weeks if the redirect map and technical implementation are solid; a large or sustained drop signals a genuine implementation problem.
Should we migrate everything at once or in phases?
For very large sites, a phased migration (by section or template) reduces risk by letting you validate the approach on a smaller URL set before committing the entire domain, though it extends the overall project timeline.
What's the biggest single cause of migrations going wrong?
An incomplete or inaccurate redirect map — either missing URLs entirely or redirecting them to a generically similar but not actually equivalent destination page.
Do we need to keep the old domain or hosting active after migration?
Yes, at minimum for the redirects themselves to function — a domain migration typically requires the old domain to remain registered and pointed at the redirect infrastructure for at least 12 months, ideally longer.
How do you recover from a migration that's already gone wrong?
A full audit comparing pre- and post-migration URL structures against current GSC coverage and ranking data to identify the specific failure points (missing redirects, canonical errors, content mismatches), followed by a prioritised remediation plan targeting the highest-value pages first.
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Ready to put this into practice?

The guides above document the philosophy. The SEO Migration Governance service page documents the engagement — scope, deliverables, cadence, and pricing.