Inspect SSL/TLS certificate validity, issuer, and security configurationai人工智能对话
• Domain: enter a bare domain without https:// (e.g. example.com)
• Checks HTTPS certificate validity and expiry
• Shows certificate issuer and validity period
• Custom port: append :port for non-443 endpoints (e.g. example.com:8443)
An SSL certificate check connects to your domain over TLS, retrieves the full certificate chain, and reports the leaf certificate's issuer, validity window, expiry countdown, and a deep-audit security grade covering cipher suite, OCSP revocation status, TLS protocol support, and embedded SCTs. A single check gives you both the basic validity picture and the detailed security posture of your HTTPS endpoint.京灵平台官网
Common uses include confirming a newly issued certificate is deployed correctly, monitoring days-to-expiry before an outage, verifying the certificate issuer after a CA migration, and identifying deprecated TLS versions or weak key algorithms in a security review.京灵平台官网
The certificate's Subject Alternative Names do not include the domain you checked. Browsers will show a security warning for such connections. Reissue the certificate with the correct names or check that you're using the right domain.ai下载官方版安装
Renewing 30 days before expiry is a common practice. Let's Encrypt certificates are often auto-renewed 60 days before expiry. The expiry countdown shown here makes it easy to track this.chart gpt
OCSP (Online Certificate Status Protocol) lets browsers check whether a certificate has been revoked by its CA. A 'good' status means the certificate has not been revoked; 'revoked' means the CA has invalidated it and the connection should not be trusted.ai下载官方版安装
Self-signed certificates are not issued by a trusted CA, so browsers show security warnings. They are fine for internal or development use, but public-facing services should use a CA-issued certificate.ai人工智能免费