Search Dominance · Service 10
Technical SEO Audit. CMS migrations, replatforms, domain changes, redesigns — done without sacrificing search visibility. Crawlability, indexability, Core Web Vitals, schema, internal architecture — examined with surgical rigour, prioritised by commercial impact.
Site migrations fail predictably. The same way. Every time.
Redirect maps are written too late. Or never.
Staging environments are tested for design, not for SEO.
Schema markup is forgotten. Internal links break.
The site launches. Traffic collapses. Three weeks later
someone notices and the panic begins.
A botched site migration is the single most expensive mistake in SEO. A brand spends three to five years building organic traffic, then a six-week rebuild project — managed by people who don't understand the SEO consequences — destroys the result in a single weekend. The recovery, when it happens at all, takes 6-18 months and rarely reaches the prior baseline.
The failures are entirely preventable. Sites can be replatformed, redesigned, or migrated to entirely new domains with zero traffic loss — but only when the SEO programme runs parallel to the rebuild, not after it. We've managed dozens of migrations across a quarter-century. The pattern is consistent: get the SEO work right pre-launch, and post-launch is uneventful.
Every audit covers four pillars. Each pillar is a deep dive — not a checklist tick.
Comprehensive crawl of the existing site, classification of every URL, identification of every URL that needs a redirect target, schema preservation plan, internal linking preservation plan. The blueprint that decides whether the migration succeeds.
Full SEO QA on the staging environment before any cutover. Crawl behaviour testing, schema validation, hreflang verification, redirect chain checks, JavaScript rendering tests. The pre-launch testing that catches issues while they're still cheap to fix.
On-the-day SEO management of the cutover. Real-time crawl monitoring, immediate diagnosis of any issues, rapid response capability, GSC and analytics monitoring. The four hours that determine whether traffic survives the launch.
Daily monitoring for the first two weeks, weekly for the next two months. Ranking trajectory tracking, traffic recovery monitoring, edge-case redirect catching, and rapid remediation of any post-launch issues that emerge.
Comprehensive audit of current site, comprehensive map of new site, gap analysis between the two. The redirect map gets built before any code is written.
Two to four weeks of intensive QA on staging. Every URL tested, every redirect verified, every piece of schema validated. Issues identified here cost hours; issues identified post-launch cost weeks.
Coordinated launch sequence with the development team. Real-time monitoring during cutover. Immediate response to any issues. Full crawl validation within 24 hours of launch.
Daily monitoring shrinking to weekly. Ranking trajectory tracking. Edge-case identification. Most migrations show full traffic recovery within 14-30 days when done correctly; the 90-day window catches the long-tail issues.
Two near-identical companies running near-identical migrations on the same weekend. Both replatforming from a legacy CMS to a modern headless stack. Both with similar traffic levels. One company's SEO programme runs parallel to the rebuild from week one. The other's SEO team is invited to "review" the new site two weeks before launch. The first company sees no traffic disruption. The second loses 47% of organic traffic within ten days and takes fourteen months to recover.
The difference isn't talent or budget — it's when SEO enters the project. Migration SEO that starts at week one of a rebuild costs roughly 15-20% of the development budget. Migration SEO that starts after launch costs the equivalent of all the SEO investment that came before, repeated.
A European e-commerce brand operating across nine markets needed to migrate from end-of-life Magento 1 to a headless Shopify Plus stack — typically the highest-risk migration in e-commerce SEO. We ran the SEO programme parallel to the rebuild for sixteen weeks, building a 47,000-URL redirect map, validating schema migration, testing the staging environment exhaustively. Launch weekend went unremarked because nothing went wrong. Thirty days post-launch: organic traffic was up 4% (algorithmic boost from improved Core Web Vitals), zero rankings lost, zero revenue interruption.
Our previous migration (different agency) cost us 60% of organic traffic and fourteen months of recovery. We approached this rebuild terrified. Revolutionize ran the SEO programme parallel from week one. Launch weekend was the most boring weekend of our year — and that was the highest praise I could have offered. Zero disruption.
A technical audit is most powerful when followed by these complementary services.
Migrations are the highest-stakes technical SEO event in a brand's lifetime. The audit is the natural pre-migration baseline — and many migration engagements start with one.
Explore →Multi-market migrations multiply complexity. Hreflang preservation, ccTLD routing, regional redirect strategy — every layer needs explicit handling.
Explore →E-commerce migrations are the most complex migration type. Product URL preservation, faceted nav reconstruction, schema migration, all at scale. Often paired with our e-commerce SEO programmes.
Explore →Plan the migration
Book a 30-minute scoping call. We'll discuss your migration timeline, identify the highest-risk decisions ahead, and quote a possible engagement with no obligation.