DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

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

TLSv1.3

cusae.com · 91.109.120.51:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=cusae.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-11-01T10:07:08+00:00
Expires
2027-01-30T10:07:07+00:00
Days remaining
84
Serial (hex)
061C6F32ACD542AB9B34187989C48A26485B
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.cusae.com, DNS:*.intra.cusae.com, DNS:*.n.cusae.com, DNS:*.priv.cusae.com, DNS:*.ws.cusae.com, DNS:*.ws.intra.cusae.com, DNS:cusae.com

SHA-256 fingerprint

0F:E0:89:5E:4F:64:00:DF:69:75:9D:4A:0A:C3:81:71:29:52:EF:7D:8B:A0:1C:D6:22:DF:D9:B5:10:33:D5:7D
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
43:11:2F:5A:70:9A:8A:A1:73:6B:07:3D:83:37:A1:D7:E2:E6:D6:41
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:*.cusae.com, DNS:*.intra.cusae.com, DNS:*.n.cusae.com, DNS:*.priv.cusae.com, DNS:*.ws.cusae.com, DNS:*.ws.intra.cusae.com, DNS:cusae.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/92.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Nov 1 11:05:38.513 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:D7:1C:D5:00:DD:CB:FF:96:F6:54:C9: 14:30:66:0D:4B:BC:04:AE:CF:EC:E9:92:CE:6E:DB:EA: AE:97:E8:43:71:02:21:00:9C:A8:01:76:55:EC:C9:BF: 96:85:F9:AA:9F:0F:F3:4E:98:24:C1:9E:93:B3:83:6F: E6:7F:10:A3:A1:88:86:38 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 : Nov 1 11:05:38.644 2026 GMT Extensions: 00:00:05:00:19:BB:65:DE Signature : ecdsa-with-SHA256 30:45:02:20:4B:5D:69:4C:CF:55:C4:FA:82:EB:06:84: CF:83:7C:B9:91:63:09:1E:0D:55:39:14:29:F8:CD:F9: 4D:1A:F8:73:02:21:00:CE:56:5B:C0:CA:34:B7:F0:67: 55:00:17:40:0F:5D:60:1E:93:05:60:8C:C7:B1:C4:E3: A0:98:54:47:6D:CE:C8
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-07T00:17:31+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
665
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2126
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

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

View certificate JSON

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