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A website relaunch without losing your rankings

A new website can carry over the search visibility the old one built up. How a relaunch keeps rankings: URL inventory, 301 redirects, content, technical checks and monitoring after launch.

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A relaunch is a chance: a new design, a faster system, clearer content. With a plan, it also carries over what the site has built up in search over the years. Rankings belong to URLs and their content, so the plan makes sure search engines can follow every page to its new place.

SEO works best as part of the relaunch from the first step, not as a check at the end. Here’s how a relaunch keeps its rankings.

1. Inventory: what exists today

Before anything changes, record what’s there:

  • Every URL of the current site: from a crawl, the sitemap, Google Search Console and analytics. Old campaign pages and PDFs count too.
  • Which pages bring traffic, and with which search terms.
  • Which pages have backlinks from other sites. Those links carry trust that shouldn’t get lost.
  • Titles, descriptions and headings of the important pages.

This list is the baseline. Everything after the launch is measured against it.

2. Redirects: every old URL gets a new home

If URLs change, and in a relaunch they usually do, every old URL needs a 301 redirect to its closest new equivalent. A 301 tells browsers and search engines “this page has moved for good” and passes its signals on to the new address. Google recommends keeping these redirects for at least a year.

What makes a redirect plan work:

  • One to one where possible. The old service page goes to the new service page, not to the home page. Sending everything to the home page looks to search engines like the content is gone.
  • No chains. Old URL to new URL in one step, not through several hops.
  • No dead ends. Pages that really are gone without replacement return a 404 or 410, and nothing important ends up there by accident.
  • Variants covered: with and without www, with and without a trailing slash, http and https, old language paths.

3. Content: keep what ranks

A new design is a good moment to tidy up content. Pages that rank well rank for their content, so they’re handled with care: their substance stays, even when the wording or layout changes.

So the content plan looks at the inventory: what ranks keeps its substance and its topic focus, even if it gets a new layout. Weak or outdated pages can be merged or improved, with a redirect from each old URL.

4. Technical: the checks before launch

Before the switch, the new site is checked on a staging environment:

  • Staging stays out of search, protected by a password, so it doesn’t get indexed as a duplicate.
  • The live site is open again: a noindex tag or a blocking robots.txt carried over from staging is a classic pitfall worth checking on every launch.
  • Canonicals and hreflang point to the new URLs.
  • Structured data is carried over: business details, products, articles, FAQ.
  • Internal links point directly to new URLs, not through redirects.
  • Performance and mobile layout are at least as good as before.
  • Analytics and Search Console keep working, so the comparison with the baseline holds.

5. Launch day

On the day itself:

  • Redirects go live together with the new site, not days later.
  • A new XML sitemap is submitted in Google Search Console.
  • A test crawl of the old URL list confirms that every redirect lands where it should.
  • Key pages are checked by hand: forms, checkout, contact, languages.

6. Monitoring: the weeks after

Some movement in rankings after a relaunch is normal while search engines process the changes. What matters is spotting real problems early:

  • 404 errors in Search Console show old URLs that were missed.
  • Index coverage shows whether new pages get indexed.
  • Rankings and traffic for the pages from the inventory, compared with the baseline.
  • Backlinks that point to redirected URLs keep working; important ones can be updated at the source.

The short version

  • Inventory first: all URLs, their traffic, their backlinks.
  • 301 redirects from every old URL to its closest new page, one step, no home page catch-all.
  • Content that ranks keeps its substance.
  • Before launch: staging protected, noindex removed, canonicals, structured data, analytics.
  • After launch: sitemap, test crawl, and watching 404s, indexing and rankings.

If you’re planning a relaunch and want to keep what your site has built up, get in touch.

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