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WordPress Redirects and SEO: What You Need to Know

Redirects are essential for site maintenance, migrations, and affiliate marketing. But done wrong, they can hurt your search rankings. Here's what actually happens when search engines encounter redirects, and how to use them correctly.

How Search Engines Process Redirects

When Googlebot (or any crawler) requests a URL and receives a redirect response, it makes decisions based on the HTTP status code:

301 Moved Permanently

The canonical signal for permanent moves. Google's response:

302 Found (Temporary)

Indicates a temporary situation:

307 and 308

HTTP/1.1 additions that preserve the request method:

For most WordPress use cases, 301 and 302 are sufficient.

Link Equity Transfer

"Link equity" (or "link juice") refers to the ranking power that backlinks provide. When sites link to your content, they pass authority. This authority is a major ranking factor.

With 301 redirects:

Google's Official Position

In 2016, Google confirmed that 301, 302, and 307 redirects all pass full PageRank. The historical "30% loss" myth is outdated. However, 301 remains best practice because it sends the clearest signal about permanence.

Common Redirect Scenarios

Site Migration (HTTP to HTTPS)

When moving to HTTPS, every HTTP URL needs a 301 to its HTTPS equivalent. WordPress handles this automatically if you update your Site URL, but verify:

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

Domain Change

Moving from oldsite.com to newsite.com requires redirecting every URL pattern. This is high-stakes: get it wrong and you lose years of SEO work.

Content Consolidation

Merging multiple thin posts into comprehensive guides:

Affiliate and External Links

Redirect posts for affiliate marketing are SEO-neutral:

Redirect Chains and Loops

Redirect Chains

When URL A redirects to B, which redirects to C:

A → B → C

Google will follow chains (up to about 5 hops), but each hop adds latency. Best practice: point directly to the final destination when possible.

Redirect Loops

When A redirects to B, and B redirects back to A:

A → B → A → B → ...

This breaks crawling entirely. Browsers show "too many redirects" errors. Always test redirects after implementation.

WordPress-Specific Considerations

Canonical URLs

WordPress adds <link rel="canonical"> tags to pages. These tell search engines which URL is authoritative. Redirects and canonicals should align:

Permalink Changes

Changing your permalink structure (Settings → Permalinks) doesn't automatically create redirects. Old URLs return 404. You need to:

Plugin Conflicts

Multiple redirect plugins can conflict. If Plugin A redirects /page to /new-page and Plugin B redirects /new-page to /other, you create a chain. Audit your redirect rules periodically.

Testing Redirects

Always verify redirects work correctly:

Browser Developer Tools

  1. Open Network tab (F12 → Network)
  2. Visit the redirect URL
  3. Look for 301/302 status codes
  4. Verify the Location header points to correct destination

Command Line

curl -I https://yoursite.com/redirect-url

# Output shows:
# HTTP/2 301
# location: https://destination.com/page

Online Tools

Tools like httpstatus.io and redirect-checker.org test redirect chains and show each hop.

When NOT to Use Redirects

Temporary Content

For maintenance pages or A/B tests, use 302. You want Google to remember the original URL.

Internal Navigation

If users should land on Page A, don't secretly redirect to Page B. It's confusing and potentially manipulative.

Cloaking

Showing different content to Googlebot than to users (including via redirects) violates guidelines. Don't redirect bots differently than humans.

Need Post-Level Redirects?

External Redirect Pro adds 301 redirect functionality to WordPress posts. Perfect for affiliate links and content curation. SEO-friendly with proper headers.

Get External Redirect Pro - $19

Summary

301 redirects are the correct choice for permanent moves, affiliate links, and content consolidation. They pass link equity and send clear signals to search engines. Avoid chains when possible, always test your implementation, and keep redirect rules documented for future reference.

H

Haohunter

WordPress developer building lightweight plugins that solve real problems. No bloat, no subscriptions, just tools that work.