Moving platforms without losing rankings or data
CMS migrations planned around SEO preservation, content integrity, and minimal downtime.
A CMS migration moves a site's content and structure from one platform to another while preserving SEO equity through careful URL mapping and redirects, ideally with minimal downtime.
What is CMS Migration?
A CMS migration is one of the highest-risk projects a website goes through - not because moving content is hard, but because every URL that changes without a proper redirect risks losing ranking equity that took years to build. We build the complete URL map, preserve what already works, and use the move as the moment to fix the technical debt nobody wanted to touch on the old platform.
Skip the mapping step and rankings reset quietly - the loss is usually discovered a quarter later, not on launch day, once it is much harder to trace back to the migration.
It's different from a headless CMS build, which changes how content is delivered - a migration changes where content lives, and the redirect map is what decides whether the move costs you existing organic traffic.
Common problems we solve
URLs change without a redirect plan
Ranking equity built over years disappears the moment a URL moves with no 301 in place.
No pre-migration baseline
Without a ranking and traffic baseline, a post-migration drop gets discovered late, not caught early.
Content fields do not map cleanly
The new platform structures content differently, and nobody planned for what does not translate.
Issues surface after go-live
Skipping staging QA means users find the problems instead of the migration team.
Multiple platforms need consolidating
Merging several source systems into one makes URL mapping more complex, not less important.
No rollback plan if something breaks
A migration with no documented fallback turns a fixable issue into a crisis.
Everything covered in this service
Migration Planning
A full content and data inventory, with field-by-field mapping between old and new platforms.
URL Mapping & Redirects
A complete old-to-new URL map with 301 redirect implementation and validation.
SEO Equity Preservation
A pre-migration ranking and traffic baseline, monitored post-migration against it.
Staged Rollout
Staging environment migration and QA before production, with a rollback plan in place.
Our optimization framework
Inventory Content
We catalogue every existing page and URL before planning anything, since an incomplete inventory is the most common cause of a missed redirect.
Map Fields
Content fields on the old platform are mapped to their equivalent on the new one, with a plan for anything that does not map cleanly.
Build Redirects
A full 301 redirect map is built and tested before go-live, covering every URL that will change.
Stage & QA
The migration runs on staging first, where content, redirects, and functionality are checked before production is touched.
Cut Over
We migrate production on a schedule designed to minimise downtime, with a rollback plan ready if something does not go as expected.
Monitor Post-Launch
Rankings and traffic are tracked against the pre-migration baseline so any issue is caught within days, not months.
What actually changes
| Before | After |
|---|---|
| Redirect map is partial or built after launch | Every URL has a mapped, tested 301 redirect before go-live |
| No baseline, so ranking loss is discovered late | SEO baseline tracked before and after the move |
| Issues are found by users after go-live | Staging QA catches issues before production |
| Technical debt carries forward to the new platform | The move is used to fix technical debt, not repeat it |
| No documented fallback if something breaks | A rollback plan is ready before cutover |
What we report on
Ranking preservation
Tracked against the pre-migration baseline for priority pages.
Redirect coverage
Verified as a percentage of old URLs with a validated, working 301.
Downtime during cutover
Measured against the planned migration window.
Post-migration issue detection speed
Tracked from go-live to when any anomaly is flagged against baseline.
Tools & platforms
Industries we optimize for
Built for teams like yours
Why choose EASI7
We fix tracking before we touch results
Every engagement starts with the same audit we'd run on our own accounts, so the numbers you're optimizing against are actually true.
One accountable team, not siloed vendors
The same team that does this also owns the rest of your stack - no handoff, no blame-shifting between vendors.
Built for how AI search actually works
Everything we build is structured to be extractable by AI answer engines, not just ranked in a list of blue links.
Reporting tied to your own dashboard
Every number we report ties back to GA4/GTM events you can see directly - not a screenshot from a tool you can't independently verify.
We build the complete URL map before migration starts, not as a post-launch cleanup task, and we track a real ranking and traffic baseline so any post-migration issue is caught early, not discovered a quarter later.
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How to engage us for this
Project-based
A defined outcome with a start and end date - an audit, a migration, a campaign build, a tracking overhaul. Fixed scope, fixed price, agreed upfront.
Ongoing retainer
Continuous management and optimization once the initial build is live - campaigns, SEO, reporting, and iteration run every month under one accountable team.
Advisory
Strategy and oversight without full delivery - we review what's already running, unblock decisions, and point an in-house or existing team in the right direction.
Common questions
Only if it's done carelessly. Done properly - with a full URL map and 301 redirects planned before the move, not after - ranking equity carries over with minimal disruption. The risk is almost always in what gets skipped under time pressure, not in the migration itself.
It depends heavily on site size and content complexity - a small site might move in a few weeks, while a large catalogue or content library with complex field mapping can take a couple of months to do properly.
We can guarantee we plan for minimal downtime and a clear rollback path, but promising zero downtime on every migration would be dishonest - the goal is a short, controlled window rather than an unplanned one.
We flag those cases during the mapping phase rather than discovering them mid-migration. Some content gets restructured to fit the new model; in rare cases, content that genuinely has no home gets a documented decision rather than being silently dropped.
In practice yes, though the amount of custom mapping work varies a lot depending on how different the two platforms' content models are. We scope that during planning rather than assuming every migration is equally straightforward.
Planning a platform move and worried about losing rankings?
We'll build the full URL and redirect map before anything goes live, not after.
Ready to get started?
We usually reply within 24 hours.
CMS Migration, in detail
Scope, area by area
| Area | What we deliver |
|---|---|
| Content Migration | All content, media, and metadata moved and validated on the new platform |
| URL & Redirect Strategy | A complete URL map and 301 redirect implementation |
| SEO Monitoring | Pre- and post-migration ranking and traffic comparison |
| Rollback Plan | A documented fallback if the migration needs to be reversed |
How this compares
| Planned Migration | Rushed Migration |
|---|---|
| Every URL has a mapped redirect | Redirect map is partial or built after launch |
| SEO baseline tracked before and after | No baseline, so ranking loss is discovered late |
| Staging QA catches issues before production | Issues are found by users after go-live |
The projects that lose rankings are almost never the ones that took too long - they're the ones that skipped the redirect map to hit a deadline.