bypassed.me

bypassed.me이란?

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.