Key takeaways
- Benchmark before you touch anything.
- Map every old URL to a new one and use permanent 301 redirects.
- Monitor closely for at least eight weeks after launch.
Why do redesigns lose SEO traffic?
Most drops come from changed URLs without redirects, removed pages that ranked, lost content, internal links pointing to dead pages, and noindex tags left over from staging. Google has to rediscover the site, and anything it cannot match to the old version loses its history. Almost all of these problems are preventable with a plan before launch.
Google's site move guide recommends server-side permanent redirects, such as 301 or 308, and a mapping of every old URL to its new home.
Before launch
- Export rankings, organic traffic and top landing pages as a baseline.
- Crawl the old site and list every URL, including images and PDFs that get traffic.
- Identify pages with backlinks and organic traffic that must be preserved.
- Map every old URL to the most relevant new URL.
- Keep ranking content; improve it rather than cutting it.
- Carry over titles, meta descriptions and schema, or improve them.
What should you check on staging?
Check that staging is blocked from indexing, then review every priority page for content, headings, titles, internal links and schema. Test speed against Core Web Vitals, confirm mobile layouts, and make sure the redirect map is ready to deploy. Finally, confirm that the noindex rules used on staging will be removed at launch.
Speed targets come from Google's Core Web Vitals guidance: LCP within 2.5 seconds, INP under 200 ms and CLS under 0.1.
Launch day
- Deploy the 301 redirects and test a sample of old URLs.
- Remove staging noindex rules and password protection.
- Submit the new XML sitemap in Search Console. See Google's sitemap overview.
- Check robots.txt, canonicals and analytics tags.
- Crawl the live site for broken links and redirect chains.
How long should you monitor after launch?
At least eight weeks. Watch Search Console for indexing changes, crawl errors and 404s every few days in the first two weeks, then weekly. Compare traffic and rankings against the baseline, fix any missing redirects quickly, and update internal links that still point to old URLs. Small fluctuations are normal; steep drops on key pages are not.
Offering this as a web design agency
Redesign SEO is the natural first SEO service for a web design agency. My guide on white label SEO for web design agencies shows how to package it. For the deeper audit of the old site, use the technical SEO audit checklist or order a white label SEO audit. Site migration SEO starts at $900 wholesale, listed on the pricing page and the white label SEO services overview.
Frequently asked questions
Do I need redirects if URLs stay the same?
No, but still check content, metadata, internal links and indexing after launch.
How long does traffic take to recover?
With good redirects, small dips usually settle within weeks. Missing redirects can cause lasting losses.
Should we change domains during a redesign?
Only if necessary. Changing domain and design at once adds risk.
Can we remove old blog posts?
Only low-value ones without traffic or links, and redirect them to relevant pages.
Who should own redirects: designers or SEO?
Plan them together. SEO builds the map; developers implement it.
About the author
Juan José Giraldo is a senior SEO specialist with 5+ years of experience. He works on technical and local SEO for 600+ US car dealerships and supervises the SEO of 18 US e-commerce stores. He runs White Label SEO LATAM from Medellín, Colombia, and delivers white label SEO for agencies in the US, UK, Canada and Australia. Read more · LinkedIn.