The Short Answer
Migrating off WordPress doesn't have to cost a Calgary firm its rankings — but a careless move absolutely can. The question tends to surface right after a firm concludes an AI-optimized rebuild beats yet another WordPress redesign. The one non-negotiable step is a 301 redirect mapped from every existing URL to its proper new-site equivalent, completed before launch, not scrambled together after.
How the Redirect Process Actually Works
Before a single new page ships, the entire existing site gets catalogued — every practice-area page, every blog post, every FAQ, and yes, the forgotten pages nobody remembers mattered. Each one gets matched to its closest counterpart on the new site. Anything being retired outright with no direct replacement should redirect to the nearest topically related page — never defaulted to the homepage, which quietly throws away whatever ranking value that URL had built up.
Once that map is complete, every redirect gets implemented and verified before the new site ever replaces the old one — checked for correct resolution, no chained redirects, no accidental loops back on themselves. The actual switch only happens after that verification pass clears.
What Actually Causes a Ranking Drop Mid-Migration
When rankings do slip during a migration, it almost always traces back to one of three culprits: a redirect that was simply never set up, a content mismatch where the new page answers something meaningfully different from what it's redirecting away from, or a technical hiccup at launch that briefly keeps Google from crawling the new site.
Every one of those three is preventable with a properly planned migration — nothing about them is inevitable. AI website design for Calgary law firms covers how migration gets handled as a routine part of every rebuild.
How This Connects
A Calgary law firm rarely has just one of these questions — How Many Pages Should a Calgary Law Firm's Website Have? and What Happens if a Calgary Firm Stops Paying Its Web Agency? tend to come up in the same conversation, followed closely by Is Your Calgary Law Firm's Website Mobile-Friendly Enough for Clients?, SEO Agency vs. AI Website Agency: What Does a Calgary Law Firm Need?, and Should a Calgary Law Firm Build Content for Interprovincial Relocation Clients?. Two more worth bookmarking: Should a Calgary Law Firm Build Content on Alberta's Auto Insurance Market? and How Much Does SEO Cost for a Law Firm in Calgary?. AI Website Design for Calgary Law Firms and AI SEO for Calgary Law Firms cover the two sides of the work directly, and the Calgary hub ties them together.