deepdig.dev vs HTTPBuddy

deepdig is a free toolbox of network diagnostics built for sysadmins, DevOps engineers and hosting operators — the checks you run every day, faster and more detailed, with no account and no ads. Enter a domain, IP or paste raw data. Checks run in parallel on our servers and results stream in live, each finding graded by severity with a plain-English explanation of why it matters. TOOLS • DNS diagnostics — records, delegation and glue consistency, full DNSSEC chain validation from the root, propagation across 18 public resolvers, and a hop-by-hop recursion trace • SSL/TLS — certificate chain, expiry, hostname match, trust, protocol versions, HSTS • WHOIS — registrar, dates, EPP status codes for domains; RIR allocation, ASN and abuse contacts for IPs • Mail tester — SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, MX reachability and STARTTLS • Email header analyzer — paste a raw email, get the Received chain as a timed hop-by-hop trace with SPF/DKIM/DMARC verdicts • DNSBL / blacklists — check IPs and domains against major blocklists, Spamhaus included • HTTP headers — security headers, redirect chain, cookie flags, server fingerprint • HTTP/3 — ALPN negotiation, Alt-Svc advertisement and CDN detection • IP info — ASN, announced prefix, rDNS, country and hosting classification • Certificate Transparency log search • Subnet/CIDR calculator and a password generator WATCHES — GET NOTIFIED WHEN THINGS CHANGE Put a domain or IP on watch and deepdig re-checks it for you. You get a push notification only when something actually changes: a certificate crossing 14, 7 or 1 day to expiry (and a recovery notice when it renews), a new blacklist listing or a delisting, or a changed DNS record set. No noise, no daily digests — alerts only on real transitions. BUILT THE WAY YOU'D WANT IT • Results stream in as each check completes — no spinners • Every run is saved as a shareable permalink snapshot • History and side-by-side comparison for any target • Share a URL or domain from any app to open the right tool prefilled • Dark mode that follows your system • No account, no ads, no tracking, no analytics. Free. deepdig is the mobile companion to deepdig.dev — same engine, same results, in your pocket.

HTTPBuddy is a powerful API client and debugging tool that lets you send HTTP/HTTPS requests, establish WebSocket connections, and send/receive data frames anytime, anywhere. With HTTPBuddy, you can: • Send requests and view responses from anywhere. • Debug API issues even when away from your computer. • Easily read JSON, HTML, XML, and plain text responses. • Import APIs from Postman for debugging on the go. • Periodically check observed APIs for availability and correctness. Features: • User-friendly request editor for easily editing HTTP headers and request bodies. • Supports all major HTTP methods, including GET, POST, PUT, DELETE, PATCH, HEAD, and OPTIONS. • Automatically highlights JSON, HTML, and XML content with searchable strings. • Integrates with Postman/Apifox for importing APIs to debug. • View API documentation. • View and replay historical requests. • Supports expression injection and scripting to inject dynamic parameters before sending requests, meeting complex authorization needs.