I'm launching bypassed.me here tomorrow 169 free DNS, email, TLS and dev diagnostics in one place. It started as a personal toolbox for debugging my own self-hosted mail server and grew a bit out of hand
While building it, I noticed the tools I personally return to aren't the fanciest ones they're the ones that answer one question instantly with zero friction (for me: a cron-to-plain-English translator and a cert-chain checker).
169 diagnostics for the boring-but-critical layer of the internet: DNS records, email authentication (SPF · DKIM · DMARC), TLS certificates, IP blacklists and HTTP security headers — plus in-browser dev utilities (JWT, cron, regex, hashing) where your data never leaves your machine.
No sign-up to run a check. Built by a self-hoster who got tired of juggling six sites to debug one mail server. Watchlists, cert/DNS expiry alerts, embeddable badges and an API on top.
