Free website health check
Know what your website needs next.
Run a bounded, non-invasive health check for availability, performance, TLS, DNS, email security and browser headers.
Health checks do not exploit vulnerabilities or scan internal networks.
Use the score as a starting point
The health score summarizes this tool’s weighted checks at one moment. It is not a security certification, a search ranking score or a guarantee of availability. Read each finding and its suggested fix rather than optimizing the number alone.
Work through findings in order
Address availability and certificate errors first, then investigate DNS, email policy and response headers. Review a header recommendation in the context of your application before changing it: an overly strict policy can break legitimate functionality.
Performance here is server response performance
This scanner does not execute a browser or measure field Core Web Vitals. Browser loading, rendering, interactions and third-party JavaScript need separate measurement.
Common questions
Is this a vulnerability scan?
No. It performs bounded public diagnostics. It does not attempt exploitation or replace a security assessment.
Does a healthy result mean I can stop monitoring?
No. Configuration and availability change. Continuous monitoring can alert when a later check fails.