deepdig.dev vs Dos View

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.

Dos View shows what is really inside a file. Open anything — a document, a photo, an app bundle, a log, a disk image — and read it byte by byte, in the look of a classic DOS text-mode viewer. THREE VIEWS • HEX — offsets, bytes and their characters side by side • BIN — every byte as eight bits • TXT — the file as text, with line wrap and record formatting dosview guesses the right view and code page from the file's first bytes, and you can switch with one tap. 20 CODE PAGES CP437, CP850, CP852, CP866, CP1250, CP1251, CP1252, ISO-8859-1, -2, -5 and -15, KOI8-R, KOI8-U, MacRoman, MacCyrillic, UTF-8, UTF-16LE and UTF-16BE. Old DOS texts with box-drawing frames and Cyrillic finally look right. SEARCH AND NAVIGATION • Find text, or bytes with an x: pattern — x:89 ?? 4E 47, where ?? matches any byte • Go to any offset, in hex or decimal • Format: split the data into records by a separator and see its bytes marked • Highlight of matches, the byte under the cursor always shown below FILES OF ANY SIZE The viewer core is written in Rust and reads only what is on screen, so a file of many gigabytes opens at once and scrolls to its end without waiting. MADE FOR TOUCH Drag to scroll, pinch to zoom, drag the offset column to narrow it, drag the text column to set the bytes per line, tap a byte to put the cursor on it, hold for the code page list. Everything you set is remembered. With a hardware keyboard you get the classic keys: F7 Find, F8 next match, F5 Go to and more. OPEN FROM ANYWHERE Open from Files, or pick a photo or video from the gallery. Or send a file to dosview from any app with "Open in…" and the share sheet — even plain text or a link, to see its UTF-8 bytes. ACCESSIBLE High-contrast palette, support for VoiceOver, Bold Text, Reduce Motion and larger text. Available in 46 languages. PRIVATE No accounts, no ads, no tracking, no network. Your files never leave the device.