🔐 Bulk TLS Checker

Check TLS/SSL certificates for multiple hostnames and ports at once. Supports both direct SSL/TLS connections and STARTTLS for SMTP servers. Results are sorted by expiration date with the most urgent certificates first.

What to Enter:
  • Hostnames with ports (one per line)
  • Format: "hostname port1 port2"
  • Example: "example.com 443 25 587"
What You'll Get:
  • Certificate details for each hostname/port
  • Expiration dates and warnings
  • Connection type (SSL/TLS vs STARTTLS)
  • Results sorted by urgency
Direct SSL/TLS Ports
  • 443 - HTTPS (Web)
  • 465 - SMTPS (SMTP over SSL)
  • 993 - IMAPS (IMAP over SSL)
  • 995 - POP3S (POP3 over SSL)
  • 636 - LDAPS (LDAP over SSL)
  • 990 - FTPS (FTP over SSL)
STARTTLS Ports
  • 25 - SMTP (STARTTLS)
  • 587 - SMTP Submission (STARTTLS)
  • 143 - IMAP (STARTTLS)
  • 110 - POP3 (STARTTLS)
  • 389 - LDAP (STARTTLS)
  • 21 - FTP (STARTTLS)
Usage Tips
  • Direct SSL/TLS: Certificate is presented immediately upon connection
  • STARTTLS: Plain connection upgraded to encrypted after STARTTLS command
  • Note: Port 80 (HTTP) and other non-encrypted ports will show errors
Enter one hostname per line, followed by space-separated port numbers. Default port (443) will be checked if no ports specified.