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SSL Certificate

Analyze SSL/TLS certificates for any website, checking issuer details, validity period, expiration warnings, and alternative names.

Quick Examples: google.com github.com cloudflare.com wikipedia.org
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Turkey National Cyber Security Status (USOM)

SAFE: No active restrictions found in USOM registry
Clean / Allowed
F
Security Grade F • Overall Certificate Health Verdict

Hostname Certificate Mismatch

jll.pl → 205.144.64.113:443 Port 443 Open • 462.46 ms Connection Latency

Cryptographic Key Matching
Target Domain
Hostname Certificate Mismatch
Chain Integrity
Chain Complete
Time Remaining
88 Days Remaining
Cipher Suite
TLSv1.2 • 128 bits

Server Configuration Remediation Guides

1 Diagnostics
critical

Hostname Certificate Mismatch

The domain "jll.pl" is not covered by this SSL certificate. Browsers will display a full security interstitial warning blocking visitors.

Certificate is issued for: *.jll.com, jll.com
Reissue the certificate to include "jll.pl" in Subject Alternative Names (SANs) or reconfigure web server virtual hosts.

Server Certificate Chain Hierarchy

3 Certificate(s)
1 Server Certificate (Leaf)
Hostname Certificate Mismatch Valid
Common Name (CN) *.jll.com Issued By: DigiCert Global G2 TLS RSA SHA256 2020 CA1
Validity Encryption
20.07.2026 00:00 → 03.02.2027 23:59
RSA 2048 bits • sha256WithRSAEncryption
2 Trusted Root Certificate Authority
Trusted Root CA
Common Name DigiCert Global G2 TLS RSA SHA256 2020 CA1 DigiCert Inc
Validity Issuer
2021-03-30 00:00:00 → 2031-03-29 23:59:59
Issuer: DigiCert Global Root G2
3 Trusted Root Certificate Authority
Trusted Root CA
Common Name DigiCert Global Root G2 DigiCert Inc
Validity Issuer
2013-08-01 12:00:00 → 2038-01-15 12:00:00
Issuer: DigiCert Global Root G2

Cryptographic Certificate Specifications

Common Name (CN) *.jll.com
Signature Algorithm sha256WithRSAEncryption
Serial Number (HEX) 0B68170983E37D4DD267E8C5228189B7
SHA-256 Fingerprint AB:08:82:83:D8:B5:90:F0:51:53:47:90:F4:C1:29:C3:DB:4C:89:EA:C5:D4:76:FE:BC:22:EC:65:58:03:AA:80
Valid From 20.07.2026 00:00
Valid To / Expiry 03.02.2027 23:59
Issuer String DigiCert Global G2 TLS RSA SHA256 2020 CA1
Key Parameters RSA 2048 bits
Subject Alternative Names (SANs) (2)
*.jll.com jll.com