The Short Answer
An Ottawa firm doesn't have to lose rankings when it migrates — but it can lose them badly if the migration is done carelessly. This question usually comes up right after a firm has decided an AI-optimized rebuild is worth it over another WordPress redesign. The single most important step is mapping a 301 redirect from every existing URL to its new equivalent before launch. Skipping or rushing this step is the most common cause of a migration tanking a firm's traffic.
The Redirect Mapping Process, Step by Step
Before any new page goes live, every URL on the existing site needs to be inventoried — every practice area page, every blog post, every FAQ page, every French-language page if the current site has any. Each one gets mapped to its most relevant equivalent on the new site. A page that's being genuinely retired with no direct replacement should redirect to the closest topically relevant page, never to the homepage by default.
Once the map is built, redirects are implemented and tested before the new site goes live — checking that each one actually resolves correctly, with no redirect chains and no accidental redirect loops. Only after this is verified does the new site actually go live to replace the old one.
What Actually Causes Ranking Loss During a Migration
Ranking drops during a migration almost always trace back to one of three causes: missing redirects (a page simply disappears with no path forward, so both users and Google hit a dead end), a content mismatch (the new page covers a meaningfully different topic than the old one it's redirecting from, confusing Google's understanding of what the page is about), or a technical error at launch that temporarily blocks Google from crawling the new site.
None of these are unavoidable — they're all preventable with a properly planned migration. See AI website design for Ottawa law firms for how migrations are handled as a standard part of every rebuild.
How This Connects
A Ottawa law firm rarely has just one of these questions — Should My Ottawa Law Firm Website Be Available in French and English? and How Many Pages Should an Ottawa Law Firm's Website Have? tend to come up in the same conversation, followed closely by What Happens if an Ottawa Firm Stops Paying Its Web Agency?, Is Your Ottawa Law Firm's Website Mobile-Friendly Enough for Clients?, and SEO Agency vs. AI Website Agency: What Does an Ottawa Law Firm Need?. Two more worth bookmarking: Should Your Ottawa Law Firm Build Content for Federal Public Service Employees? and How Much Does SEO Cost for a Law Firm in Ottawa?. AI Website Design for Ottawa Law Firms and AI SEO for Ottawa Law Firms cover the two sides of the work directly, and the Ottawa hub ties them together.