Redirect Inspector — Redirect Console av 301.st

Capture the full navigation story in real time: server and client redirects grouped into a clean chain. Local analysis detects loops, ping-pong patterns and long chains — processed entirely in your browser with zero external requests.

Real-time HTTP redirect capture

Every server redirect (301, 302, 303, 307, 308) and client-side navigation (JavaScript, meta-refresh) is intercepted via the webRequest API the moment it fires. HSTS http-to-https upgrades are shown as a distinct hop type. No manual trigger — browse normally and see chains populate in the sidebar.

Session grouping

Chains from the same browsing session are grouped by tab, time window, and domain affinity. Sub-resource redirects (tracking pixels, analytics, media) are collapsed under a noise filter you can toggle on or off.

Nine local analysis checks

Open the analysis drawer on any chain to run automatic checks:

• Redirect loops — same URL appearing as both source and target
• Ping-pong — host alternation A-B-A (www/non-www, http/https, trailing-slash)
• Long chains — hop count thresholds at 3 (info), 5 (warning), 8 (error)
• Mixed types — permanent and temporary redirects in the same chain
• Final outcome — 4xx/5xx final status or network error
• Auth bounces — OAuth, SSO, login, and callback URL patterns
• Locale/consent — language, country, and cookie-consent redirects
• Tracking noise — known tracking host suffixes and pixel file patterns
• CDN detection — CloudFront, Akamai, Fastly, Cloudflare intermediaries

Results include severity badges (info/warning/error), per-hop annotations, tag chips, and a summary line. Copy the full analysis report to the clipboard with one click.

Designed for

QA engineers — verify landing flows, login redirects, broken journeys. Session grouping shows a full test run at a glance.

SEO specialists — audit canonicalization, mixed redirect types, and unnecessary hops that dilute link equity.

Developers — debug navigation logic, unexpected intermediaries, and client-side redirect behavior. The sidebar stays open alongside DevTools.

Privacy-first

• All processing is local — nothing is sent to any external server
• Zero network requests: no analytics, no CDN, no remote code
• Cookie values are never read or stored
• Auth tokens are detected by URL shape only, never logged
• Copied reports contain URLs, status codes, and analysis — nothing else

Technical details

• Uses webRequest.onBeforeRedirect and webNavigation.onCommitted for capture
• Vanilla DOM rendering — no framework, loads in under 100 ms
• Sidebar via sidebar_action for persistent monitoring
• Dark and light theme with system preference detection

Open source

Source code: https://github.com/investblog/redirect-inspector



v2.1.0 · 301.st