FREE WEBSITE HEALTH TOOL

SSL & DNS Checker

Check whether a website hostname resolves and whether its HTTPS certificate is valid and close to expiry.

Public HTTP and HTTPS sites only. Results are not saved.
KEEP WATCHING

A one-time check is useful. Continuous monitoring is better.

AliveRadar monitors the important pages of your website over time, records availability and response time, and can email you when a page, DNS resolution, or SSL certificate needs attention.

Start monitoring