Passive check only
Enter a public website URL
Use a normal public website. Localhost, private networks, metadata addresses, credentials in URLs, and unusual ports are blocked.
Estimated results: load time and page size are based on a limited server-side homepage sample. They are not a full browser performance test and can vary by device, location, network, and website conditions.
Speed
Response estimate
Measures time to first byte and the sampled homepage response.
HTTPS
Certificate check
Checks HTTPS trust and the HTTP-to-HTTPS redirect.
Security
Header review
Reviews common defensive response headers without exploiting the website.