SSL Certificate
Analyze SSL/TLS certificates for any website, checking issuer details, validity period, expiration warnings, and alternative names.
Turkey National Cyber Security Status (USOM)
SAFE: No active restrictions found in USOM registry
Clean / Allowed
A
Security Grade
Overall Certificate Health Verdict
All SSL Checks Passed Successfully
nic.istanbul → 85.111.6.220:443 Port 443 Open • 135.66 ms Connection Latency
Matches Requested Hostname
Matches Requested Hostname
Chain Integrity
Chain Complete
Time Remaining
58 Days Remaining
TLS & Cipher
TLSv1.2 • 256 bits
Server Configuration Remediation Guides
1 Diagnostics
success
All SSL Checks Passed Successfully
The SSL certificate matches the hostname, the certificate chain is complete, and it is trusted by all major desktop and mobile browsers.
No action required. Your SSL/TLS configuration meets enterprise security standards.
Server Certificate Chain Hierarchy
4 Certificate(s)
1
Server Certificate (Leaf)
Matches Requested Hostname
Valid
Common Name (CN)
*.nic.istanbul
Issued By: YE2
Validity & Encryption
23.09.2026 12:17 → 22.12.2026 12:17
EC 256 bits • ecdsa-with-SHA384
2
Valid Intermediate Certificate
Valid Intermediate Certificate
Common Name
YE2
Let's Encrypt
Validity & Issuer
2025-09-03 00:00:00 → 2028-09-02 23:59:59
Issuer: Root YE
3
Trusted Root Certificate Authority
Trusted Root CA
Common Name
Root YE
ISRG
Validity & Issuer
2026-05-13 00:00:00 → 2032-09-02 23:59:59
Issuer: ISRG Root X2
4
Trusted Root Certificate Authority
Trusted Root CA
Common Name
ISRG Root X2
Internet Security Research Group
Validity & Issuer
2026-05-13 00:00:00 → 2032-09-02 23:59:59
Issuer: ISRG Root X1
Cryptographic Certificate Specifications
Common Name (CN)
*.nic.istanbul
Signature Algorithm
ecdsa-with-SHA384
Serial Number (HEX)
0694273249979E8C4CBD240E3E8C66B9EFCF
SHA-256 Fingerprint
59d05bd2e4f423b62ce3fd101b07a40be9fd86907f7095b98db2aa25ff533e2b
Valid From
23.09.2026 12:17
Valid To / Expiry
22.12.2026 12:17
Issuer String
YE2
Key Parameters
EC 256 bits
Subject Alternative Names (SANs) (2)
*.nic.istanbul
nic.istanbul