SIDT vs DNS/HTTP Tester

A Developer HTTP Request Debug Analyse Tool. - POST/GET/PUT/DELETE/HEAD Method support - Header, Parameter edit - Base64, MD5, SHA, CRC encoding - Timeout Setting - Response Data display in Web/Text/JSON format mode - Search Bar in Fire Result - JSON formatted display - Sent Request info - Status info - Response Cast Time - Data List edit/search - Data Exchange by Multipeer Connectivity and QR code - Directly add Data in Safari Share Extension - Search SIDT data in Spotlight - Also offer SIDT on macOS

DNS/HTTP Tester — a complete network diagnostic toolkit wrapped in a nostalgic retro '90s desktop interface. Built for developers, sysadmins, and IT professionals who want fast answers, with no accounts, no ads, and no tracking. CORE TOOLS ▸ DNS Lookup — A, AAAA, MX, TXT, CNAME, NS, SOA records ▸ DNS Propagation — check across 5 global resolvers, with an "Is it down or just me?" verdict ▸ HTTP Header Inspector — status, security headers, CORS, compression, response time ▸ SSL Certificate Checker — expiry, issuer, alt names, protocol ▸ DNSSEC Validation — verify the AD flag ▸ Whois Lookup — registrar, key dates, nameservers ▸ Hosting & Location — country, city, ASN, organization ▸ Ping / Latency — visual response-time graph ▸ Tech Fingerprint — detect CDN, WAF, server, and framework DOMAIN AUDIT — all in one place ▸ Health Score — a weighted A–F grade with a full checklist (DNS, HTTPS, TLS, HSTS, CSP, DNSSEC, email…) ▸ Subdomain Discovery — from Certificate Transparency logs ▸ Email Security — SPF, DMARC, DKIM and MX analysis STAY ON TOP OF CHANGES ▸ Network Status — run a full health check on any domain at once ▸ Watchlist — track domains and spot IP, status or certificate changes between checks ▸ Query History — your last 50 lookups, stored locally ▸ Export & Share — save any report as TXT, JSON or CSV, or share a health report card NATIVE iOS EXTRAS ▸ Home-screen & Lock Screen Widget — live status + certificate countdown, with an interactive in-widget Recheck ▸ Siri Shortcuts & App Intents — Check DNS, Check SSL, Run Audit by voice ▸ Share extension — audit any URL straight from Safari ▸ Compare two domains side by side, or Batch-check many at once ▸ Watchlist trends & on-device certificate-expiry alerts ▸ More records: CAA / SRV / PTR · email BIMI / MTA-STS / TLS-RPT · HTTP/2 & HTTP/3 detection PRIVACY FIRST No account required. No ads. No tracking. No data sent to our servers. Everything runs on your device — DNS queries go straight to public resolvers, and only the domain name is sent. BUILT TO ENJOY ▸ Authentic retro '90s desktop aesthetic, right down to the dial-up boot ▸ 16 languages ▸ 2 themes: Classic + High Contrast One-time purchase. No subscription.