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THE CERTIFICATE BEHIND THE CONNECTION

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Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLS

aofidc.com · 137.59.100.7:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=*.yun-gu.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-05T15:01:45+00:00
Expires
2027-01-03T15:01:44+00:00
Days remaining
50
Serial (hex)
05346DCAFE94EB3FC3AE2A5876AFE8FDB502
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.yun-gu.com

SHA-256 fingerprint

FF:B2:2A:64:0A:FF:9F:6D:A6:07:F0:EE:58:08:93:DD:65:8A:F2:6E:7A:43:93:37:8D:FC:83:D8:02:74:79:AD
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
F3:84:BC:89:5C:80:04:C1:C9:3B:04:37:E4:2D:37:76:84:FE:D4:7F
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:*.yun-gu.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/3.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Oct 5 16:00:15.955 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:86:8C:33:CB:57:D4:13:11:76:0A:B9: CC:E0:C9:C2:B5:62:DB:7D:62:CB:45:0D:E1:02:DC:C3: F3:34:25:D6:95:02:21:00:B1:79:43:46:BE:20:B5:02: CA:B1:BF:00:01:97:0D:35:D0:25:D9:8B:85:3A:A4:9F: 1B:27:87:38:17:C0:7A:AE Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Oct 5 16:00:16.066 2026 GMT Extensions: 00:00:05:00:07:C3:19:44 Signature : ecdsa-with-SHA256 30:45:02:20:59:9D:6C:54:D4:DD:0E:55:69:0F:D8:26: FC:F6:21:B8:7E:FF:85:87:18:BD:94:5A:8E:60:ED:6F: 8A:B8:77:89:02:21:00:E2:98:3C:E1:E8:14:78:EA:B4: A2:61:45:F3:85:12:0A:73:34:09:5C:80:C0:A8:99:09: CB:ED:F2:F0:47:64:3F
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: Unavailable · Checked 2026-11-13T17:53:13+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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