SEO
Fixbrokenlinksand404errorsafterasitemigration
404s after a redesign? Build a redirect map, clean Search Console, and fix internal links - DIY then scoped help.
By VIQQ StudioUpdated June 20266 min read
Key takeaways
- Audit 404 URLs
- 301 redirect map
- Update internal links
Try it yourself first
Export old URLs before launch - redirect maps are easier before traffic hits 404s.
404s after a redesign silently bleed SEO and ad quality score - visitors and Google hit dead ends.
A redirect spreadsheet beats fixing links one-by-one in panic mode.
DIYsteps
1Step 1 - Find broken URLs
- Search Console → Pages → Not found (404).
- Screaming Frog or similar crawler on staging - export 404 list.
- Click through main nav and footer on mobile - old service slugs often hide in menus.
2Step 2 - Redirect map
- Map each old URL to the closest live page - not all to homepage.
- Add 301s in RankMath/Yoast redirect manager or hosting rules.
- Update internal links in content - redirects are backup, not the fix alone.
3Step 3 - After migration
- Submit updated sitemap in Search Console.
- Monitor 404 report for 2–4 weeks - catch stragglers.
Still broken?
Getascopedrepair-norebuildpitch
Stop DIY if: Hundreds of URLs changed in a replatform, or redirects cause chains/loops - get a migration redirect scope.
We audit internal links, fix redirect maps after migrations, and clean Search Console 404 noise.
