Technical Deep Dives
Redirect Strategies

Redirect Strategies

Redirects tell browsers and search engines that a page has moved to a new location. Using the right redirect type is crucial for preserving SEO value and providing a good user experience.

Types of Redirects

301 - Permanent Redirect

The page has permanently moved to a new location.

Use when:
  • URL structure changes permanently
  • Moving to a new domain
  • Consolidating duplicate content
  • Deleting a page with a replacement
Passes ~90-99% of link equity
302 - Temporary Redirect

The page has temporarily moved; will return.

Use when:
  • A/B testing
  • Page under maintenance
  • Seasonal promotions
  • Geolocation redirects
Original URL stays indexed

All HTTP Redirect Codes

Code Name SEO Impact Use Case
301 Moved Permanently Passes link equity Permanent moves
302 Found (Temporary) Keeps original indexed Temporary moves
307 Temporary Redirect Like 302 HTTP to HTTPS temp
308 Permanent Redirect Like 301 Permanent (preserves method)
Meta Refresh HTML-based Avoid Only if no server access
JavaScript JS-based Avoid Only as last resort

When to Use Which Redirect

Use 301 for:
  • Changing URL slugs
  • Merging websites
  • Moving HTTP to HTTPS
  • WWW to non-WWW (or vice versa)
  • Fixing duplicate content
Use 302 for:
  • Site maintenance
  • Temporary promotions
  • A/B test variations
  • Country/language detection
  • Cart/checkout flows

Implementation Methods

.htaccess (Apache)

# Single page redirect
Redirect 301 /old-page.html /new-page.html

# Entire domain redirect
RewriteEngine On
RewriteCond %{HTTP_HOST} ^olddomain\.com$ [NC]
RewriteRule ^(.*)$ https://newdomain.com/$1 [R=301,L]

# HTTP to HTTPS
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

Nginx

# Single page redirect
location = /old-page {
    return 301 /new-page;
}

# HTTP to HTTPS
server {
    listen 80;
    server_name example.com;
    return 301 https://$server_name$request_uri;
}

Redirect Chains and Loops

Redirect Chain (Bad)
/page-a/page-b/page-c/page-d

Each hop loses link equity and slows down the user. Fix by redirecting directly to the final destination.

Direct Redirect (Good)
/page-a/page-d
/page-b/page-d
/page-c/page-d

All pages redirect directly to the final URL.

Redirect Loops: A → B → A creates an infinite loop and breaks the page completely. Always test redirects before deploying.

Best Practices

  • Redirect to relevant content - Don't redirect everything to the homepage
  • Update internal links - Fix links to point to new URLs directly
  • Avoid chains - Keep redirects to a single hop
  • Monitor 404s - Create redirects for broken URLs that get traffic
  • Keep redirects long-term - Maintain 301s for at least a year
  • Update sitemaps - Replace old URLs with new ones

Common Mistakes

  1. Using 302 instead of 301 - Temporary redirects don't pass full link equity
  2. Redirect chains - Multiple hops lose equity and slow pages
  3. Not redirecting all variations - HTTP, HTTPS, WWW, non-WWW should all resolve
  4. Removing redirects too soon - Old links may still point to old URLs
  5. Redirecting to irrelevant pages - Hurts user experience and may be seen as soft 404

External Resources