Privacy Policy

Certline is a single-purpose TLS diagnostic tool. You paste a hostname and we return what that server presented.

What we collect

Nothing. Certline does not store, log, or transmit any data you enter. The hostname you check is sent directly to the backend, which opens a TLS connection, reads the certificate, and returns the result — it is never persisted. There are no accounts, no cookies, no analytics, and no tracking of any kind.

Third parties

The site is hosted via Cloudflare (HTTPS edge termination). Cloudflare may process standard HTTP request metadata (IP address, User-Agent) as part of its content delivery function, subject to their own privacy policy. No certificate data or hostnames are processed by Cloudflare beyond standard request routing.

Contact

A legal entity and contact address are not yet available. If you have a privacy concern, please record it with the project owner. Once a legal entity is established, this page will be updated with verifiable contact details.

Last updated: August 2026.