VALID
Trusted Certificate
A valid certificate means the domain can support encrypted HTTPS connections without browser trust warnings.
Free to use • No registration required
SSL Certificate Checker Tool
Check whether an SSL/TLS certificate is valid, trusted, and correctly configured.
Understanding Your SSL Certificate Results
The SSL certificate result helps confirm whether visitors and browsers can trust the HTTPS connection for a domain.
EXPIRY
Renewal Timeline
Check the expiration date early so renewals happen before users see security warnings.
ACTION NEEDED
Mismatch or Chain Error
Hostname mismatches, expired certificates, or incomplete chains need quick fixes to protect trust and conversions.
About This Tool
The SSL Certificate Checker reviews the certificate presented by a domain over HTTPS. It helps confirm whether the certificate is valid, trusted, not expired, and issued for the correct hostname.
Use it before launches, after certificate renewals, during migrations, or when browsers show privacy or connection warnings.
Why It Matters
1
Prevent browser warnings
Catch expired, mismatched, or untrusted certificates before users hit errors.
2
Support secure user journeys
HTTPS protects sensitive interactions such as forms, logins, and checkout flows.
3
Validate renewals
Confirm automated certificate renewals are working after hosting or CDN changes.
4
Improve technical trust
SSL health is a baseline signal for users, crawlers, and integrations.
How To Improve
1
Check the exact domain
Test both root and www versions if both are active.
2
Review expiry date
Renew or fix automation before the certificate expires.
3
Confirm hostname coverage
Make sure the certificate covers the domain users actually visit.
4
Inspect the chain
Fix missing intermediate certificates or trust chain issues through your host or CDN.
Frequently Asked Questions
It helps enable HTTPS by supporting encrypted, authenticated connections between browser and server.
The certificate may be expired, not trusted, installed incorrectly, or issued for a different hostname.
HTTPS is expected for modern websites and helps protect users, especially on pages with forms or accounts.
Yes. Each active hostname should present a valid certificate.
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PRO FEATURE
Unlock Full Analysis
Deeper infrastructure reporting and exports.