HTTP Headers, Cache & IP Whois .DZ

Inspect HTTP headers, cache status, TTFB, IP infrastructure, Service Workers and WHOIS in real time.

Inspect HTTP responses, cache behavior and network infrastructure directly from your browser. HTTP Headers, Cache & IP Whois .DZ is a fast, technical diagnostic tool for web developers, sysadmins, SEOs and advanced users who need to inspect network exchanges, verify cache behavior and analyze server infrastructure without opening DevTools. Check HTTP headers, response status, cache status, TTFB, redirects, IP infrastructure, Service Worker activity and domain registration data in a clean, unified dashboard. Key features: • HTTP Headers — Inspect request and response headers, status codes, cookies and caching directives with Chrome DevTools-style inspection and instant copy. • Cache Detection — Identify cache status across common CDN and server layers, including Cloudflare (status & calculated age), FastCGI, LiteSpeed and Varnish. • TTFB & Latency — Measure real Time to First Byte (TTFB) for document navigation with an intuitive color-coded response indicator. • Redirect Tracing — Follow complete HTTP redirect chains (301, 302, 307, 308) step by step. • Service Worker Diagnostics — Detect active Service Workers, script URLs and scopes. Distinguish between authentic network responses and local Service Worker cache-first delivery (SWC). • IP & Hosting Infrastructure — View server IP, ASN, hosting provider, geographic location and reverse DNS (PTR) powered by MyIP.ms. • WHOIS & Domain Registry — Real-time domain registration lookup with dedicated official support for Algerian .DZ domains (NIC.DZ) and standard RDAP for international domains. • DNS Diagnostics — Inspect authoritative nameservers (NS) and zone records via Google DNS over HTTPS (DoH). • Audit Export — Generate printable PDF technical audit reports or copy plain-text summaries formatted for bug reports and team messaging. • Trilingual Interface — Fully localized in English, French and Arabic (with native RTL support). • 100% Local & Privacy-First — All HTTP diagnostics and headers remain on your local device. The extension does not operate any analytics backend, tracking servers or telemetry.