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SSL Certificate

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

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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

samplesite.tech → 59.106.19.164:443 Port 443 Open • 680.67 ms Connection Latency

Cryptographic Key Matching
Target Domain
Hostname Certificate Mismatch
Chain Integrity
Chain Complete
Time Remaining
8 Days Remaining
Cipher Suite
TLSv1.3 • 256 bits

Server Configuration Remediation Guides

2 Diagnostics
critical

Hostname Certificate Mismatch

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

Certificate is issued for: *.sakura.ne.jp, *.180r.com, *.2-d.jp, *.achoo.jp, *.amaretto.jp
Reissue the certificate to include "samplesite.tech" in Subject Alternative Names (SANs) or reconfigure web server virtual hosts.
warning

Certificate Expiring Soon

This SSL certificate will expire in 8 days (15.11.2026 23:59).

Trigger your automated renewal (e.g., certbot renew) or order your renewal certificate to prevent unexpected downtime.

Server Certificate Chain Hierarchy

3 Certificate(s)
1 Server Certificate (Leaf)
Hostname Certificate Mismatch Valid
Common Name (CN) *.sakura.ne.jp Issued By: Gehirn RSA Domain Validation Secure Server CA 2
Validity Encryption
01.05.2026 00:00 → 15.11.2026 23:59
RSA 2048 bits • sha256WithRSAEncryption
2 Trusted Root Certificate Authority
Trusted Root CA
Common Name Gehirn RSA Domain Validation Secure Server CA 2 Gehirn Inc.
Validity Issuer
2025-05-14 00:00:00 → 2035-05-13 23:59:59
Issuer: Sectigo Public Server Authentication Root R46
3 Trusted Root Certificate Authority
Trusted Root CA
Common Name Sectigo Public Server Authentication Root R46 Sectigo Limited
Validity Issuer
2021-03-22 00:00:00 → 2038-01-18 23:59:59
Issuer: USERTrust RSA Certification Authority

Cryptographic Certificate Specifications

Common Name (CN) *.sakura.ne.jp
Signature Algorithm sha256WithRSAEncryption
Serial Number (HEX) 7A88F56A4009F66FD9A646FE1CE327F1
SHA-256 Fingerprint 20:8B:45:5C:89:E5:E1:D9:7F:00:4E:6D:D4:EE:4C:04:64:10:5E:FD:25:B2:53:F0:22:2B:3E:C2:CD:07:CC:95
Valid From 01.05.2026 00:00
Valid To / Expiry 15.11.2026 23:59
Issuer String Gehirn RSA Domain Validation Secure Server CA 2
Key Parameters RSA 2048 bits
Subject Alternative Names (SANs) (64)
*.sakura.ne.jp *.180r.com *.2-d.jp *.achoo.jp *.amaretto.jp *.bona.jp *.chew.jp *.crap.jp *.daynight.jp *.deko8.jp *.dojin.com *.eek.jp *.flop.jp *.from.tv *.fubuki.info *.gokujou.biz *.grats.jp *.grrr.jp *.halfmoon.jp *.ivory.ne.jp *.jeez.jp *.jpn.org *.kirara.st *.kokage.cc *.mail-box.ne.jp *.matrix.jp *.mimoza.jp *.mints.ne.jp *.mokuren.ne.jp *.nazo.cc *.netgamers.jp *.noob.jp *.nyanta.jp *.o0o0.jp *.opal.ne.jp *.rash.jp *.razor.jp *.rdy.jp *.rgr.jp *.rojo.jp *.rossa.cc *.rulez.jp *.rusk.to *.saikyou.biz *.sakura.tv *.sakuratan.com *.sakuraweb.com *.saloon.jp *.sblo.jp *.silk.to *.skr.jp *.spawn.jp *.squares.net *.sumomo.ne.jp *.tank.jp *.thyme.jp *.topaz.ne.jp *.uh-oh.jp *.undo.jp *.websozai.jp *.whoa.jp *.x0.com *.x0.to *.xii.jp