A business hires an agency for a redesign. The new site is genuinely better looking. Six weeks later, the map pack position is gone, “near me” traffic is down 60%, and the agency says rankings “fluctuate.” They don’t fluctuate like that. The redesign broke specific things — the same specific things almost every time.
Rankings don’t get lost in redesigns. They get left behind — page by page, tag by tag, by whoever didn’t make the migration checklist.
The URL massacre
Agencies love clean new URL structures. /services/emergency-plumbing-austin/ becomes /what-we-do/plumbing/ — tidier, and catastrophic. Every URL that ranked was an address Google had built trust in; change it without a 301 redirect and that trust points at a 404. The fix is a complete redirect map, old URL to new, live the minute the new site is. Google documents exactly how to move a site without losing rankings — the process exists; it just requires someone to own it.
The content “cleanup” that deletes rankings
Designers cut text because text fights layouts. The 900-word service page ranking for a dozen local long-tails becomes an elegant 150-word section — and every long-tail goes with the words. Local pages are the most common casualty: the town-by-town service pages get consolidated into one “Areas We Serve” list, and the site stops ranking in every town that lost its page.
The local signals nobody carries over
Local SEO lives on specifics that redesigns treat as clutter: the business name, address, and phone in crawlable text (not baked into an image), LocalBusiness schema markup, the embedded map, and the exact NAP formatting that matches the Google Business Profile. Strip those during a rebuild and Google’s confidence in the business-location connection drops — which is precisely what the map pack ranks on.
The technical regressions
Two more classics: the staging site’s noindex setting shipping to production (check within the first hour of launch, every time), and the new design being heavier than the old one — a builder-based rebuild that doubles load time takes a Core Web Vitals penalty on top of everything else.
How to protect yourself on the next redesign
Before anyone designs anything, export every page with clicks from Search Console and every URL with backlinks — that’s the protected inventory. Demand the redirect map as a deliverable. Insist ranking pages keep their content depth, their H1s, and their schema. And re-crawl the site launch week, watching Search Console for 404 spikes. This is exactly the checklist built into my redesign process — keeping rankings is the deliverable, not an upsell. It’s also, frankly, the argument for hiring the person who actually does the work: migrations fail in handoffs, and a solo build has none.