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Get Started Free →Use when auditing site redirects after URL migrations, domain changes, or CMS upgrades. Applies to any site that has had multiple rounds of structural changes over time.
.claude/skills/thedaviddias-redirect-chain/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | 82% | 0% |
| case-12 | ✗→✓ | ▲ Improved | -33% | 0% |
| case-19 | ✗→✓ | ▲ Improved | 21% | 0% |
| case-16 | ✓→✓ | = Same ✓ | -42% | 0% |
| case-02 | ✓→✓ | = Same ✓ | 81% | 0% |
Redirect chains waste crawl budget, reduce PageRank flow to destination pages, and add latency that harms user experience—Googlebot may abandon long chains entirely, leaving destination pages undiscovered.
Follow all redirect rules configured on the site. Identify any URL where the redirect target itself also redirects (chain of 2+ hops). Report the full chain (URL A → URL B → URL C → final), the number of hops, and the HTTP response code at each step.
For each redirect chain, update the first redirect to point directly to the final destination URL. Example: if A→B→C, update A's redirect to point directly to C, eliminating the B hop. Verify the chain is gone by following the URL and confirming a single 301 or 302 followed by a 200.
A redirect chain occurs when page A redirects to page B, which also redirects to page C. Googlebot follows redirect chains up to a certain number of hops (reportedly 5), then stops—meaning the final destination may not be crawled. Each redirect also loses a portion of the PageRank that would have passed through a direct link.
Test each redirect rule configured on the server. For each source URL, follow all redirect hops and record the full chain. Flag any chain with 2 or more hops (source → intermediate → final). Check for redirect loops (A→B→A). Verify that the final destination returns 200. Report: source URL, intermediate URLs, number of hops, final URL, and HTTP status at each step.
For full implementation details, code examples, and framework-specific guidance, see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/seo/redirect-chain
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-16 | pass→pass | 9,274 | 2,851 | -69% | 1 | 1 | 0% | 1,701 | 988 | -42% | 0 | 0 | — |
case-01 | fail→pass | 15,570 | 6,964 | -55% | 1 | 1 | 0% | 942 | 1,712 | +82% | 0 | 0 | — |
case-02 | pass→pass | 3,083 | 3,597 | +17% | 1 | 1 | 0% | 688 | 1,242 | +81% | 0 | 0 | — |
case-03 | pass→pass | 5,056 | 3,797 | -25% | 1 | 1 | 0% | 829 | 1,111 | +34% | 0 | 0 | — |
case-04 | pass→pass | 13,396 | 10,726 | -20% | 1 | 1 | 0% | 2,348 | 2,490 | +6% | 0 | 0 | — |
case-05 | pass→pass | 8,453 | 4,187 | -50% | 1 | 1 | 0% | 1,595 | 1,233 | -23% | 0 | 0 | — |
case-06 | pass→pass | 14,750 | 9,682 | -34% | 1 | 1 | 0% | 2,776 | 2,217 | -20% | 0 | 0 | — |
case-07 | pass→pass | 7,725 | 3,330 | -57% | 1 | 1 | 0% | 1,376 | 793 | -42% | 0 | 0 | — |
case-08 | pass→pass | 4,185 | 1,996 | -52% | 1 | 1 | 0% | 789 | 748 | -5% | 0 | 0 | — |
case-09 | pass→pass | 14,826 | 11,633 | -22% | 1 | 1 | 0% | 2,318 | 2,459 | +6% | 0 | 0 | — |
case-10 | pass→pass | 13,433 | 5,675 | -58% | 1 | 1 | 0% | 2,121 | 1,417 | -33% | 0 | 0 | — |
case-11 | pass→pass | 15,025 | 15,202 | +1% | 1 | 1 | 0% | 2,736 | 3,119 | +14% | 0 | 0 | — |
case-12 | fail→pass | 12,046 | 5,308 | -56% | 1 | 1 | 0% | 1,881 | 1,267 | -33% | 0 | 0 | — |
case-13 | pass→pass | 7,943 | 2,910 | -63% | 1 | 1 | 0% | 1,422 | 1,004 | -29% | 0 | 0 | — |
case-14 | pass→pass | 7,161 | 4,711 | -34% | 1 | 1 | 0% | 1,466 | 1,410 | -4% | 0 | 0 | — |
case-15 | pass→pass | 10,538 | 7,592 | -28% | 1 | 1 | 0% | 2,005 | 1,834 | -9% | 0 | 0 | — |
case-17 | pass→pass | 5,951 | 2,968 | -50% | 1 | 1 | 0% | 910 | 863 | -5% | 0 | 0 | — |
case-18 | pass→pass | 5,427 | 3,859 | -29% | 1 | 1 | 0% | 930 | 1,176 | +26% | 0 | 0 | — |
case-19 | fail→pass | 16,489 | 15,556 | -6% | 1 | 1 | 0% | 2,850 | 3,447 | +21% | 0 | 0 | — |
case-20 | pass→pass | 7,754 | 8,102 | +4% | 1 | 1 | 0% | 1,556 | 1,964 | +26% | 0 | 0 | — |
case-21 | pass→pass | 7,609 | 7,225 | -5% | 1 | 1 | 0% | 1,481 | 1,783 | +20% | 0 | 0 | — |
case-22 | pass→pass | 12,026 | 10,334 | -14% | 1 | 1 | 0% | 2,278 | 2,448 | +7% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted, and 21 counted toward the lift figure. The other 1 produced results that are not comparable between the two arms, so they are excluded from the headline rather than averaged into it. The headline lift of +14 percentage points is the difference between those two pass rates over the 21 comparable cases.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.