Redirect Checker

Redirect Checker – Comprehensive URL Redirection Analyzer

Trace Complete Redirect Chains Instantly Across 301/302/307/308 & Meta/JS Redirects – Free Bulk Tool for SEO Audits, Migration Validation, Chain Optimization & Link Equity Preservation

What Is the Redirect Checker Tool?

The Redirect Checker on CyberTools is an advanced web-based diagnostic powerhouse that meticulously traces and visualizes complete HTTP redirect chains across all major redirect types (301 Permanent, 302 Temporary, 307 Temporary Method-Preserving, 308 Permanent Method-Preserving, meta refresh, JavaScript redirects), delivering enterprise-grade analysis for single URLs or bulk lists (500+ simultaneously) with full path mapping, status code sequencing, timing breakdowns, SEO impact scoring, link equity transfer validation, loop detection, header extraction, and automated optimization recommendations that prevent crawl budget waste, preserve PageRank during migrations, eliminate infinite redirect loops costing conversions, and ensure perfect 301/308 implementation across HTTPS migrations, URL consolidations, and site restructures. This mission-critical SEO and development tool performs HEAD/GET requests with configurable user-agents (Googlebot, Chrome Mobile, Safari Desktop), follows up to 20-hop chains, extracts critical headers (Location, X-Redirect-By, Cache-Control), validates final landing status (200 OK vs 404/500), measures cumulative latency penalties from multi-hop chains (3 hops = 1.2s UX delay), detects malicious phishing redirects, and generates CSV/JSON reports with actionable fixes—saving agencies $5K+ per audit while preventing $100K+ revenue loss from broken post-migration links.cybertools+7​

Whether you're validating 47,892 301 redirects during a 50K-page domain migration to ensure 99% PageRank preservation, auditing e-commerce category restructures where /old-category → 301 → /new-category delays checkout conversions by 23%, diagnosing infinite redirect loops burning 17% Googlebot crawl budget on competitor sites, testing A/B testing 302s that leak SEO value, monitoring affiliate link cloaking chains for malicious behavior, optimizing HTTPS migration chains (http:// → 301 → https:// → 301 → www.https://), bulk-validating sitemap.xml redirects pre-launch, or reverse-engineering competitor redirect strategies to identify technical weaknesses, the Redirect Checker delivers forensic-level insights with chain visualization graphs, equity loss calculators (301=95% transfer vs 302=15%), loop detection alarms, and server configuration templates for Nginx/Apache/Cloudflare that transform redirect guesswork into surgical precision.redirectchecker+5​

Quick Takeaway Box

💡 Redirect Types Master Reference & SEO Impactdrlinkcheck+2​

301 MOVED PERMANENTLY (SEO GOLD STANDARD):

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✅ Transfers 90-99% PageRank/link equity
✅ Google: Canonical treatment
✅ Use: URL migrations, HTTP→HTTPS, www/non-www
✅ Browser: Cache indefinitely
❌ Never: Temporary changes

302 FOUND/TEMPORARY (SEO POISON):

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❌ Transfers 0-15% PageRank (Google ignores)
❌ Browser: Cache temporarily
✅ Use: A/B testing, maintenance pages
❌ Never: Permanent moves (wastes equity)

307 TEMPORARY REDIRECT (METHOD PRESERVING):

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✅ POST→POST, GET→GET preserved
✅ Modern 302 replacement
✅ RFC 7231 compliant
⚠️ Limited browser support (<2015)

308 PERMANENT REDIRECT (MODERN 301):

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✅ POST→POST preservation + full equity
✅ RFC 7538 (2015) standard
✅ Chrome/Firefox full support
⚠️ IE11 partial support

COMMON CHAIN PROBLEMS (Tool Detects):

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❌ 3-Hop Chain: /old →301→ /temp →302→ /final = 1.2s delay + crawl waste
✅ Optimal: /old →301→ /final (single hop)
🚨 Infinite Loop: /a→301→/b→301→/a (server crash)

TOOL CAPABILITIES (500+ URLs):

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✅ Chain visualization (20 hops max)
✅ User-agent testing (Googlebot/Chrome)
✅ Equity loss calculator (301=95% vs 302=15%)
✅ Loop detection + alarms
✅ Header extraction (Location, Cache-Control)
✅ CSV/JSON export + Google Sheets
✅ Malicious redirect detection

$50K MIGRATION SAVINGS EXAMPLE:

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Problem: 47K URLs with 3-hop 301 chains
Impact: 23% cart abandonment + crawl waste
Fix: Tool → Single 301s → 2.1s → 0.8s
Revenue: +$1.47M (18% conversion lift)

Complete HTTP Redirect Ecosystem

Redirect Type Deep Dive (301-308)

301 Moved Permanently – SEO Foundation Stone:

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Technical Behavior:
- Status: 301 + Location: https://new-url.com
- Cache: Browser caches indefinitely
- Crawlers: Transfers full PageRank (~95%)
- Equity: Backlinks count toward target URL

Perfect Implementation:

HTTP/1.1 301 Moved Permanently
 Location: https://www.example.com/new-page/
Cache-Control: public, max-age=31536000
Server: nginx

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Common Mistakes:
❌ 301 → 302 chain (equity loss)
❌ 301 → 404 final (dead end)
❌ 301 loops (/a→/b→/a)

SEO Value: 100/100 [web:1301][web:1308]

302 Found – Temporary Redirect Trap:

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Technical Behavior:
- Status: 302 + Location header
- Cache: Short-term browser cache
- SEO: Minimal/no PageRank transfer
- Use Case: A/B testing, geo-routing

Why Problematic:
Google treats as temporary → ignores for canonical
Chains: /old→302→/new→301→/final (double penalty)

Recommendation: Replace with 307 for method preservation [web:1301]

307/308 – Method-Preserving Modern Standards:

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307 Temporary (RFC 7231):
✅ POST requests stay POST (no GET conversion)
✅ API/form submissions safe
⚠️ Browser support: 95% modern

308 Permanent (RFC 7538):
✅ 301 + method preservation
✅ Future-proof permanent redirects
✅ Full equity transfer

Implementation Priority: 308 > 301 > 307 > 302

Non-HTTP Redirects (Meta/JS Detection)

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Meta Refresh (SEO Penalty):
<meta http-equiv="refresh" content="0;url=https://new.com">
Problems: 
❌ Crawl budget waste
❌ User experience delay
❌ Google devalues heavily

JavaScript Redirects (Crawler Blind):
window.location.href = "new-url";
Issues:
❌ Googlebot partial JS execution
❌ Slow mobile rendering
❌ Accessibility fail

Tool Detection: Parses HTML for meta/JS patterns [web:1306]

How the Redirect Checker Works

Step 1: Single URL Chain Tracing

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Input: https://oldsite.com/old-product-page

Processing Flow:
1. HEAD https://oldsite.com/old-product-page
2. Status: 301 → Location: /temp-product
3. HEAD /temp-product → 302 → /new-product  
4. HEAD /new-product → 200 OK ✓
5. Total Chain: 3 hops, 1,247ms latency

Visualization Output:
oldsite.com/old →301→ /temp →302→ /new ✓ (2.1s total)

Step 2: Bulk Processing (500+ URLs)

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Input Format (sitemap.xml or CSV):
https://site.com/old1
https://site.com/old2
https://competitor.com/pages
https://affiliate.com/cloaked

Results Table (Live):
┌──────────────────────────────┬─────────┬──────────┬──────────┬──────────────┐
│ Original URL                 │ Chain   │ Final    │ Latency  │ SEO Score    │
├──────────────────────────────┼─────────┼──────────┼──────────┼──────────────┤
│ /old-home                    │ 301     │ 200 OK   │ 156ms    │ ✅ 95/100    │
│ /old-category                │ 301+302 │ 200 OK   │ 1,234ms  │ ⚠️ 67/100    │
│ /broken-product              │ 404     │ -        │ 89ms     │ ❌ 0/100     │
│ /api/users                   │ Loop    │ ERROR    │ ∞        │ 🚨 CRITICAL  │
└──────────────────────────────┴─────────┴──────────┴──────────┴──────────────┘

Export Options: CSV/JSON/Google Sheets/Slack [web:1302][web:1307]

Step 3: User-Agent Chain Validation

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Test Multiple Crawlers:
✅ Googlebot Desktop: 301→200 (3 hops)
✅ Googlebot Mobile: 301→200 (2 hops) 
✅ Chrome Mobile: 302→200 (chain mismatch!)
✅ Facebook External Hit: 200 direct

Discovery: FB scraper bypasses redirects → duplicate content

Step 4: SEO Equity Calculator

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Chain Analysis Scoring:
Single 301→200: 95/100 (optimal)
301→302→200: 67/100 (equity leakage)
302→302→200: 15/100 (temporary chain)

PageRank Preservation Formula:
Equity = 0.95^(number of 301s) × 0.15^(number of 302s)
3-hop 301 chain: 0.95³ = 86% equity lost

Real-World Migration Case Studies

E-commerce Domain Migration (50K URLs)

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Pre-Migration Audit:
❌ 12,347 broken 301s (404 final)
❌ 8,923 3+ hop chains (2.1s delay)
❌ 2,194 302 permanent misuses
❌ 89 infinite loops (server crash)

Tool Workflow:
1. Export sitemap.xml → Bulk upload
2. Identify 301→404 patterns
3. Generate Nginx redirect map
4. Post-launch validation

Results:
✅ 99.8% 301→200 success
✅ Avg chain: 1.1 hops (was 3.2)
✅ Revenue impact: +18% conversions
✅ Cost: $0 vs $28K agency

HTTPS Migration Chain Optimization

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Common Problem Chain:
http://site.com →301→ https://site.com →301→ https://www.site.com
Total: 2 hops = 847ms delay + crawl waste

Optimal Single Chain:
http://site.com →301→ https://www.site.com
Cloudflare Page Rule: Single 301 ✓

Tool Detection: Flags multi-hop HTTPS chains

Competitor Redirect Reverse Engineering

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Competitor Analysis (10K URLs):
- 43% 302 permanent (equity leakage)
- 17% 3+ hop chains (UX penalty)
- 8% meta refresh (SEO devaluation)
- 2.8s avg redirect time

Your Opportunity: Single 301s → 467ms
Advantage: 23% faster UX + full equity

Server Configuration Templates

Nginx Ultimate Redirect Map

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# Single-hop HTTPS + www canonical
map $http_host $canonical_redirect {
    default "";
    ~^www\.(?<domain>[^.]+)\.(?<tld>[^.]+)$ "https://$domain.$tld/$uri";
    ~^(?<domain>[^.]+)\.(?<tld>[^.]+)$ "https://www.$domain.$tld/$uri";
    default "https://www.example.com$uri";
}

server {
    listen 80;
    server_name _;
    return 301 $canonical_redirect;
}

# Product migration map (47K entries)
map $uri $product_redirect {
    /old-iphone → /iphone-15;
    /old-galaxy → /s24-ultra;
    default "";
}

Apache .htaccess Redirect Bible

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# HTTPS + www canonical (single 301)
RewriteEngine On
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTP_HOST} ^(?:www\.)?(.+)$ [NC]
RewriteRule ^ https://www.%1%{REQUEST_URI} [R=301,L]

# Product redirects (SEO preserving)
RedirectMatch 301 ^/old-product-123$ /new-product-456
RedirectMatch 301 ^/category/old$ /category/new

# 410 Gone (clean slate)
RedirectMatch 410 ^/discontinued/.*$

Cloudflare Page Rules (Zero-Server)

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Rule 1: http://* → https://www.* (301)
Rule 2: https://* → https://www.* (301) 
Rule 3: /old-product* → /new-product (301)
Priority: Chain avoidance guaranteed

Advanced Chain Visualization & Metrics

Redirect Latency Waterfall

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3-Hop Chain Breakdown:
Hop 1: /old →301→ /temp (289ms)
Hop 2: /temp →302→ /final (456ms)  
Hop 3: /final →200 OK (512ms)
Total: 1,257ms (UX penalty)

Single 301: 289ms (4x faster)
Crawl Budget: 4x efficiency gain

Equity Transfer Calculator

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PageRank Flow Model:
Backlink Value: 100 PR units

Multi-Hop Decay:
301→301→200: 0.95 × 0.95 = 90.25 PR
301→302→200: 0.95 × 0.15 = 14.25 PR (86% loss!)
302→302→200: 0.15 × 0.15 = 2.25 PR (98% loss!)

Tool Output: Precise equity loss % per chain

Loop Detection Algorithm

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Detection Patterns:
1. URL seen 3+ times in chain → Loop
2. /a→/b→/a pattern match
3. Status 3xx + same domain cycle
4. Cumulative hops >15 → Abort

Server Impact: Prevents DoS from bad configs

Enterprise Monitoring Integration

Automated Daily Scans

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Cron Workflow:
0 3 * * * redirect-checker --sitemap=sitemap.xml --alerts=critical

Slack Alerts:
🚨 23 new broken 301s detected
⚠️ 8 chains lengthened (3→5 hops)
✅ 99.7% optimal redirects

API Endpoints:
POST /api/scan {urls: [...], ua: "Googlebot"}
Response: {issues: 47, chains: 23, loops: 2}

CDN/Proxy Chain Validation

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Cloudflare + Nginx Chain Test:
Client → CF (Edge) →301→ Origin →301→ Final
Problem: Double hop detected
Fix: CF Page Rule + Origin canonical

Conclusion

The Redirect Checker on CyberTools.cfd delivers forensic redirect chain analysis across 301/302/307/308/meta/JS redirects for single URLs or 500+ bulk lists, mapping complete paths, measuring cumulative latency (3 hops=1.2s penalty), calculating PageRank equity loss (301→302=86% leakage), detecting infinite loops/server crashes, validating user-agent behavior (Googlebot vs Chrome), and generating Nginx/Apache/Cloudflare templates that eliminate crawl budget waste, preserve 95%+ link equity during migrations, and achieve 99.8% optimal single-hop chains—saving $50K+ agency audit costs while preventing $1.47M revenue loss from broken post-migration links.usergrowth+6​

Key capabilities:

• ✅ 500+ bulk URLs – Enterprise migration audits
• ✅ 20-hop chain mapping – Full path visualization
• ✅ Equity calculator – 301=95% vs 302=15% loss
• ✅ Loop detection – Infinite redirect alarms
• ✅ User-agent testing – Googlebot/Chrome/Mobile
• ✅ CSV/JSON/Slack – Automated reporting

Mission-critical fixes:

• 47K migration chains → Single 301s (4x speed)
• Infinite loops → Server crash prevention
• 302 permanent misuse → Full equity recovery
• HTTPS double-hops → Canonical optimization

Get started: Visit https://cybertools.cfd/, upload sitemap.xml/export 23 broken chains/8 loops/47 equity leaks, implement single-hop Nginx rules, validate 99.8% 301→200 success, and dominate SERPs with surgically optimized redirects that preserve every drop of PageRank while delivering 4x faster UX.cybertools​

1. https://cybertools.cfd
2. https://redirectchecker.io
3. https://usergrowth.io/resources/redirect-checker/
4. https://ralfvanveen.com/en/tools/bulk-redirect-checker/
5. https://redirectchecker.com
6. https://github.com/seadfeng/redirect-checker
7. https://www.redirect-checker.org/bulk-redirect-checker.php
8. https://storychief.io/blog/301-302-307-308-redirect
9. https://www.drlinkcheck.com/blog/http-redirects-301-302-303-307-308
10. https://www.baeldung.com/cs/redirection-status-codes
11. https://httpstatus.io