Agent Plus

Free website check

A passive check in about 20 seconds: what every visitor and browser sees. No port scan, no probing of addresses or passwords.

The check takes up to 30 seconds.

We check: answer and speed, HTTPS certificate, redirect from HTTP, security headers, revealed versions, platform, SPF and DMARC of the domain.

We do not keep the result. For the rate limit we keep, for 2 days, only a keyed fingerprint of your address and of the domain. Privacy