How to redesign your website without losing your Google rankings

The most expensive mistake in web design isn't an ugly site. It's a beautiful new site that launches, and two weeks later the phone stops ringing because every Google ranking the old site had is gone.

It happens all the time, and it's almost always for the same reason: the URLs changed and nobody told Google.

Why rankings disappear

Google ranks pages, and it knows them by their address. If /physical-therapy-northport/ ranked well for years and the new site calls it /services/pt/, Google sees the old page as gone and the new one as a stranger. All the trust the old address built up goes with it.

The checklist

Before launch

1. Crawl the old site. Get a list of every URL, including old blog posts and PDF files. Search Console's Pages report and your sitemap are good starting points.
2. Find the pages that matter. Search Console shows which pages get clicks. Those get extra care.
3. Keep URLs where you can. The simplest redirect is the one you don't need. When I rebuilt the site for Northport Wellness PT, we kept all 70 of the old URLs.
4. Map everything else. Every old URL that can't stay gets a permanent (301) redirect to the closest new page. Not to the home page: to the closest match.
5. Keep what was working. If a page ranked, keep its title, main heading and core content close to the original, then improve from there.

At launch

6. Turn the redirects on in the same deploy as the new site. On Vercel that's a few lines in vercel.json:

{
  "redirects": [
    { "source": "/services/pt", "destination": "/physical-therapy-northport/", "permanent": true }
  ]
}

7. Submit the new sitemap in Search Console.

After launch

8. Watch Search Console's Pages report for new "Not found (404)" errors for two to four weeks, and redirect anything you missed.
9. Expect a small wobble for a week or two. A big, lasting drop means something was missed.