E5 — Chapter 5 - URL

Criterion E5: 301 Redirects — guide + checklist

PART 1 - Fundamentals Chapter 5 - URL Keyword : redirections 301

This criterion is subtle… until it blocks SEO performance.

Criterion E5 — 301 Redirects is part of our SEO checklist (335 criteria). Here, you have a practical method to check and fix it — with a concrete example.

What exactly this criterion covers

This criterion is subtle… until it blocks SEO performance.

E5 — 301 Redirects (Chapter 5 - URL): Redirect old URLs to new ones, avoid redirect chains

Why it matters (SEO + UX)

Why it matters: it is a safeguard against duplicate content and cannibalization. When poorly applied, common issues include ambiguity (wrong associated query), duplication between pages, or loss of performance on impressions.

On high-volume generated sites, this criterion also acts as a safeguard: a stable rule prevents 1,000 errors at once.

How to check (step by step)

Approach: check via crawl (list + export). Recommended tool: curl (headers).

  1. Crawl (Screaming Frog): 200/301/404 + canonicals + depth.
  2. Check the anchor and target page (intent consistency).
  3. Verify stability (no unnecessary parameters, no redirect chains).

Tip: first isolate 10 “representative” URLs (top pages + generated pages) before scaling the fix.

How to fix properly

Strategy: apply a rule, then check neighboring pages.

  • Define a stable URL rule (readable slug, no ID/parameters).
  • Implement canonical/301 if you change URLs.
  • Avoid redirect chains and check the sitemap.

Then: re-crawl 50–200 URLs, then monitor Search Console over 7–14 days (impressions/CTR/indexing).

Concrete example (illustrative)

Example (illustrative):

  • Context: service landing page for SEO training in Nice
  • Before: /service?id=123&city=nice (unreadable URL)
  • After: /formation-seo/nice/redirections-301 (clean URL)
  • Note: Goal: stable, understandable URL without duplication.

Checklist to tick

  • [ ] Readable
  • [ ] Stable
  • [ ] Consistent canonical/301
  • [ ] No unnecessary parameters
FAQ

Frequently asked questions — E5

What is the most common mistake with “301 Redirects”?

Trying to “optimize” by adding too many keywords, which degrades readability and creates repetitions.

Which tool is fastest for large-scale checking?

For this type of criterion, a crawl (e.g. Screaming Frog) plus targeted verification with curl (headers) is generally the fastest combo.

How to prevent this from happening on 10K generated pages?

Freeze an auto-generation rule (title/structure/schema/URLs) plus add automatic control (crawl or test) before production import.

Ready to go from theory to action?

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