What it checks
Whether the site answers over HTTPS as well as plain HTTP, by opening a TLS connection to port 443.
A pass means: The site is reachable over HTTPS.
Possible findings
Website is not available over HTTPS
Severity: HighConfidence: ConfirmedKind: Security issue
What we found
The site answers on HTTP but HTTPS connections failed.
Why it matters
Without HTTPS, anything visitors send or receive, including passwords and form data, can be read or changed in transit.
How to fix it
Install a certificate and serve the site over HTTPS. Free certificates are available from Let's Encrypt, and most hosts and CDNs can provision them automatically.