SSL Checker

Check any SSL certificate

Type a domain and get a fast report: validity dates, issuer, SANs, chain trust, TLS version, HSTS, and more.

  • Instant report: SNI-aware, verified chain, parsed fields.
  • Expiry clarity: Valid, Expiring soon, or Expired with days remaining.
  • Issuer & SANs: Subject, issuer, and DNS entries at a glance.
  • Network facts: Resolved IP and response time included.
  • Privacy first: No tracking cookies, short log retention.

Certificate API Endpoint

API ready:
https://ssl.lab53.uk/api/v1/check.php?host=domain.com

SSL Certificate Checker

Raw JSON

  

Privacy Policy

This tool is operated in the United Kingdom and follows the UK GDPR and Data Protection Act 2018. We respect your privacy and keep data handling to a minimum.

By using this site, you consent to the processing of data in accordance with this policy.

Terms of Use

These terms apply to your use of this SSL Checker service (“the Service”). By using it, you agree to follow these terms. If you do not agree, please do not use the Service.

Continued use of the Service indicates that you accept these terms.