SEO Troubleshooting • 13 min read

SEO After Site Redesign: How to Maintain Rankings During a Website Migration

Complete guide to preserving SEO during a website redesign. Learn how to plan migrations, implement redirects, and recover from redesign mistakes.

By Rankture Team
SEO After Site Redesign: How to Maintain Rankings During a Website Migration

Website redesigns are exciting—but they’re also one of the most common causes of SEO disasters. A poorly planned migration can wipe out years of ranking progress overnight.

Here’s how to protect your SEO during a redesign, and how to recover if things go wrong.

Pre-Redesign: Planning for SEO Success

Step 1: Benchmark Current Performance

Before any changes, document your baseline:

Traffic data:

Technical data:

Export and save:

Step 2: Create URL Mapping

The most critical SEO task in any redesign.

Map every URL:

Old URLNew URLStatusRedirect Type
/old-page//new-page/Changed301
/blog/post-name//articles/post-name/Changed301
/about-us//about/Changed301
/contact//contact/SameNone needed
/outdated-page/N/ARemoved301 to relevant

Rules for URL mapping:

Step 3: Preserve On-Page SEO Elements

For each migrating page, maintain:

Step 4: Check Robots.txt and Sitemap Plans

Ensure your new site:

During the Migration

Step 1: Implement 301 Redirects Properly

Server-level redirects are best:

Not recommended:

Example .htaccess redirects:

# Single page redirect
Redirect 301 /old-page/ https://example.com/new-page/

# Pattern-based redirect
RedirectMatch 301 ^/blog/(.*)$ https://example.com/articles/$1

After implementing redirects, update internal links to point directly to new URLs. Redirects work, but direct links are better for:

Step 3: Submit New Sitemap

  1. Update XML sitemap with new URLs
  2. Remove old URLs from sitemap
  3. Submit to Google Search Console
  4. Submit to Bing Webmaster Tools

Step 4: Monitor Crawling

Watch Search Console closely:

Post-Migration Checklist

Week 1

Week 2-4

Month 1-3

Common Migration Mistakes

Mistake 1: No Redirects or Wrong Redirects

Problem: Old URLs return 404 or redirect incorrectly.

Fix:

Mistake 2: Redirecting Everything to Homepage

Problem: All old URLs redirect to homepage, losing page-specific relevance.

Impact: Google sees mass redirects to homepage as soft 404s.

Fix: Redirect each page to its most relevant equivalent.

Mistake 3: Blocking the New Site

Problem: Robots.txt from staging accidentally deployed.

# Accidentally blocking everything
User-agent: *
Disallow: /

Fix: Immediately update robots.txt and request re-indexing.

Mistake 4: Losing HTTPS

Problem: New site launches on HTTP or mixed content.

Fix: Ensure all pages and resources use HTTPS.

Mistake 5: Forgetting Canonical Tags

Problem: Pages have wrong or missing canonical tags.

Fix: Audit canonicals point to correct new URLs.

Problem: Redesign removes important internal link paths.

Fix: Recreate internal linking structure, especially to key pages.

Mistake 7: Changing Content Significantly

Problem: Pages that ranked well now have different content.

Fix: Preserve content that was ranking well, improve rather than replace.

Recovering from Migration Problems

If Traffic Dropped Significantly

Step 1: Identify the cause

Step 2: Fix technical issues first

Step 3: Request re-indexing

Step 4: Wait and monitor

Redirect Cleanup

If you have redirect chains:

Page A → Page B → Page C (bad)

Update to:

Page A → Page C (good)
Page B → Page C (good)

Content Recovery

If important content was lost:

Migration SEO Checklist

Pre-Migration

During Migration

Post-Migration Week 1

Post-Migration Month 1

Post-Migration Month 3

Special Situations

Domain Change

If you’re changing domains entirely:

  1. Add both domains to Search Console
  2. Use Change of Address tool in Search Console
  3. Implement full redirect map from old to new domain
  4. Keep old domain active for at least 1 year
  5. Update backlinks where possible

HTTP to HTTPS Migration

  1. Get SSL certificate installed
  2. Update internal links to HTTPS
  3. Update canonical tags to HTTPS
  4. Redirect HTTP → HTTPS
  5. Update Search Console to HTTPS property
  6. Update sitemap URLs to HTTPS

CMS Migration

When changing platforms:

  1. Export all content before migration
  2. Match URL structure if possible
  3. Rebuild on-page elements exactly
  4. Test redirects on staging first
  5. Check functionality of SEO features (sitemaps, canonicals, etc.)

Timeline Expectations

Ideal scenario (well-planned migration):

Problem migration:

Related Resources:

Tags:

site migration website redesign seo migration redirects rankings

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