Documentation

Guides for keeping every URL on your WordPress site working — written by the team behind RedirectZen.

How to fix 404 errors in WordPress

Find the 404s that are really happening, decide which matter, and turn each one into a redirect.

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301 redirects without touching .htaccess

Why editing server files is the risky way, and how to manage redirects safely from your dashboard.

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Import your redirects from Redirection

Move rules, hit counts, and settings in one click — and verify the whole migration actually worked.

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Finding and fixing redirect loops

What ERR_TOO_MANY_REDIRECTS really means, and how to stop loops before they take your site down.

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Quick answer

Reading your Redirect Health grade

RedirectZen verifies every redirect end-to-end and grades the results A–F. A: everything verified working. B: working, but some redirects are fragile — chains or unexpected destinations. C–D: a small share of redirects is failing. F: failures are widespread and visitors are hitting dead ends right now. A grade also degrades one letter when verification data is too old to trust — a grade you can't trust shouldn't look pristine.

Fix failing rules from the dashboard's Issues card, then press Verify all now to re-check.

Quick answer

301 vs 302 vs 307 — which one when

301 (permanent) is right for almost everything: moved pages, deleted posts, changed permalinks. Search engines transfer the old URL's ranking to the target. 302 (temporary) tells search engines the move is short-lived and keeps the old URL indexed — use it for A/B tests or short campaigns. 307 is a stricter temporary redirect that preserves the request method — rarely needed on content sites.

When unsure, use 301. It's RedirectZen's default.

Quick answer

Why redirect chains hurt SEO

A chain is a redirect that points at another redirect. Each extra hop adds latency, leaks a little link equity, and adds one more thing that can silently break. RedirectZen flags chained redirects as fragile during verification — point the first rule straight at the final destination and the warning clears. See also: fixing redirect loops.

Quick answer

Migrating from another redirect plugin

RedirectZen detects Redirection, Quick Page/Post Redirect Plugin, WP 301 Redirects / Simple 301 Redirects, and Safe Redirect Manager, and imports each in one click from Import & Export. Your current rules are backed up first, and every imported redirect is queued for verification — minutes after migrating, you can see that every rule still works. Full walkthrough: importing from Redirection.