A new website should bring more enquiries, not fewer. Yet a traffic drop after launch is one of the most common stories in SEO, and it is almost always avoidable. Rankings don't fall because the site looks different. They fall because pages that ranked disappeared, moved without a forwarding address, lost their content, or were hidden from Google by a setting left over from the test site.
- List every page that gets search traffic before anything is designed.
- Keep the content that ranks, or improve it. Don't cut it to fit a new layout.
- Redirect every changed URL to its closest new page with a permanent (301 or 308) redirect, and keep the redirects for at least a year.
- Check for a leftover noindex, a blocked robots.txt and broken internal links on launch day.
- Change one big thing at a time: domain, platform or design.
Why redesigns lose rankings
| What went wrong | How to avoid it | What Google sees |
|---|---|---|
| URLs changed with no redirects | Map every old URL to a new one and redirect it | Pages that ranked now return errors, and their links point nowhere |
| Content cut to fit the design | Carry over the text that ranks, then improve it | Thinner pages that answer less than before |
| Temporary redirects used | Use permanent 301 or 308 redirects | The old URL kept in results instead of the new one |
| Test-site settings left on | Check both on launch day | A noindex tag or a blocked robots.txt on the live site |
| Internal links lost | Keep key pages in the menu and linked from related pages | Important pages with fewer links pointing at them |
| Slower pages | Test speed before launch, not after | A worse experience on phones |
Redirect guidance: Google Search Central on site moves with URL changes and redirects, read November 2026.
Before the design: know what ranks
Start with a list of every URL on the current site, then mark the ones that matter: pages with impressions or clicks in Google Search Console, pages with links from other sites, and pages that bring enquiries. Those pages need to survive the redesign, either at the same address or redirected to a new one that covers the same thing. Google's own guidance on hiring an SEO says a great time to hire is when you're considering a site redesign, and the earlier the better, because this list shapes the new site's structure.
The redirect map
Every old URL that changes needs a redirect to its closest equivalent on the new site, not to the homepage. Google recommends HTTP permanent redirects if possible, such as 301 and 308, and says they don't cause a loss in PageRank. Temporary redirects behave differently: Google shows the source page in search results rather than the new one. Keep the redirects generally at least 1 year; there's rarely a good reason to remove them at all.
The redesign checklist
Export what ranks
Every URL, with its Search Console clicks and impressions, its backlinks and its enquiries, before the old site changes.
Plan URLs and content
Keep URLs where you can. Where you can't, decide the new home for each page that matters, with its content carried over.
Build the redirect map
Old URL to new URL, one row each, permanent redirects only, tested on the staging site.
Carry over the essentials
Titles, headings, body text, images with alt text, structured data and internal links on the pages that rank.
Launch-day checks
No noindex, robots.txt not blocking the site, redirects working, the XML sitemap updated and submitted.
Watch and fix
Check Search Console daily for two weeks for errors and pages dropping out, and fix redirects that were missed.
Changing the domain too?
Moving to a new domain adds risk. Google's site-move guide advises that if you want to change the domain, the content management system and the layout, you should do them one at a time. If you do move domains, use the Change of Address tool in Search Console; Google says it's only needed when moving from one domain or subdomain to another, not for HTTPS or www changes.
After launch: what's normal
Some movement is expected. Google says to expect temporary fluctuation in site ranking during the move, and that a small to medium-sized site can take a few weeks for most pages to move, longer for big sites. A dip that recovers over a few weeks is normal. Pages that drop out and stay out usually mean a missing or wrong redirect, or content that didn't make the move, and those are worth fixing quickly. For how long new pages take to rank in general, see how long SEO takes.
What not to do
- Redirecting every old page to the homepage. Visitors and Google both lose the page they were looking for.
- Deleting blog posts or service pages because they "look old". Update them instead.
- Launching on a Friday afternoon. Launch when someone can watch Search Console and fix problems.
- Letting the designer decide URLs without seeing what ranks.
- Changing domain, platform and design in one go.
Whoever builds the new site, us included, ask to see the redirect map before you sign off the design. If you're replacing a site with us, it's part of the website build; store moves have their own service, ecommerce migration. If you'd like the list of what ranks before you brief anyone, our $500 SEO audit starts there. Pricing a new site? Read what a website costs and how to choose a web design company.
Questions people ask
Will redesigning my website hurt my SEO?
It doesn't have to. Rankings usually drop after a redesign because pages that ranked were removed or moved without redirects, content was cut, or a setting from the test site went live. Plan for those and the new site can rank as well or better. Google says to expect temporary fluctuations while it recrawls.
Do I need 301 redirects if I'm keeping the same domain?
Yes, for every URL that changes. Google recommends permanent redirects such as 301 or 308 from each old URL to its closest new equivalent, and says they don't cause a loss in PageRank.
How long should I keep redirects?
Google says to keep them for as long as possible, generally at least a year. In practice, keep them for good: they cost nothing and old links keep working.
How long does it take for rankings to settle after a redesign?
Google says a small to medium-sized website can take a few weeks for most pages to move, and larger sites take longer. Watch Search Console daily for the first fortnight, then weekly.
Do I need Google's Change of Address tool?
Only if you're moving to a new domain or subdomain. Google says you don't need it for moving from HTTP to HTTPS, switching between www and non-www, or changing paths on the same domain.
Should we change the domain and the design at the same time?
Google advises against it. Its site-move guide says to make changes such as a new domain, a new CMS and a new layout one at a time, so you can tell what caused any change in traffic.
When should we bring in SEO help?
Before the design is signed off. Google's own advice is that a redesign is a great time to involve an SEO, and the earlier the better, because the URL structure and content decisions happen early.
Planning a new site and worried about rankings? Book a strategy call and we'll look at what your current site ranks for and what the redesign has to protect.
