SSL certificate status
Check whether a valid SSL/TLS certificate is installed.
100% Free • No Signup • Live SSL
SSL Checker
Check your SSL certificate, expiry date, issuer, HTTPS status and website security configuration.
SSL certificate • Expiry date • Issuer • HTTPS status • Redirect check • No signup
What this checker validates
One check reviews your SSL certificate, expiry date, issuer and HTTPS availability.
Expiry date
See when the certificate expires and how many days remain.
Certificate issuer
Identify the certificate authority that issued the certificate.
Domain match
Verify whether the certificate matches the checked domain.
HTTPS response
Check whether the website responds over HTTPS.
HTTP to HTTPS redirect
Review whether HTTP traffic redirects to the secure HTTPS version.
Common SSL issues this tool can detect
Find SSL and HTTPS configuration problems that may affect trust, security or website access.
- CriticalSSL certificate missing
- CriticalSSL certificate expired
- WarningSSL certificate expires soon
- CriticalCertificate does not match domain
- CriticalHTTPS connection failed
- WarningHTTP does not redirect to HTTPS
- InfoCertificate issuer unavailable
- CriticalWebsite not responding over HTTPS
- InfoMixed SSL/website response issue
How SSL checking works
The checker connects to your domain over HTTPS and inspects the certificate.
Enter your domain
We clean the input, remove protocol or path, and validate the domain format.
Inspect SSL certificate
The tool checks the certificate issuer, validity dates, domain match and expiry status.
Review HTTPS setup
See HTTPS response, redirect behavior and recommended security improvements.
Understanding SSL status
Valid
A valid certificate was found and the domain matches the certificate.
Expiring soon
The certificate is valid now, but should be renewed soon.
Expired
The certificate is no longer valid and browsers may show warnings.
Domain mismatch
The certificate does not match the checked hostname and should be fixed.
SSL protects the connection, but it does not replace a full website security check.
Preparing SSL check…
Need help fixing SSL or HTTPS?
Send us your domain report and we’ll review the issue.
Frequently asked questions
An SSL certificate helps secure the connection between a website and its visitors by enabling HTTPS.
A valid SSL certificate must be issued by a trusted certificate authority, match the domain and be within its validity period.
Browsers may show security warnings, and visitors may lose trust or be unable to access the website safely.
A mismatch happens when the certificate was issued for a different hostname than the one being checked.
It is strongly recommended. Without a redirect, users may still access the insecure HTTP version of the website.
No. The SSL Checker is free and does not require signup.