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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

TLSv1.3

level3.com · 155.70.66.10:443

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
The certificate has expired.

Certificate verification failed

Subject
C=US ST=Louisiana L=Monroe O=Lumen Technologies, Inc. CN=www.lumen.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2024-08-13T00:00:00+00:00
Expires
2025-08-21T23:59:59+00:00
Days remaining
-395
Serial (hex)
0462853EE18C7F9967DBEA9E18C1BCF4
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.lumen.com, DNS:lumen.com

SHA-256 fingerprint

85:C1:75:54:37:D1:3F:0C:18:46:E0:8C:2A:E1:F6:9F:06:B7:03:4D:34:CB:96:64:BF:86:C6:64:5D:1D:B1:3C
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
67:5B:3B:4A:63:0C:C9:F2:63:53:D7:0E:AB:3C:B3:0F:44:46:62:06
subjectAltName
DNS:www.lumen.com, DNS:lumen.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 12:F1:4E:34:BD:53:72:4C:84:06:19:C3:8F:3F:7A:13: F8:E7:B5:62:87:88:9C:6D:30:05:84:EB:E5:86:26:3A Timestamp : Aug 13 13:08:30.882 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A8:28:2A:79:BE:6C:DA:EA:F5:AC:A5: 27:8B:61:77:59:ED:99:B6:EF:D0:3D:D9:8D:C6:BA:C9: 1D:A0:D1:C6:A7:02:20:43:CA:EE:F6:CF:E3:AE:F3:8F: 55:04:D4:BC:9E:F1:9C:E3:03:93:9A:AB:93:94:67:7E: AE:EE:75:C4:D5:9A:10 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : E6:D2:31:63:40:77:8C:C1:10:41:06:D7:71:B9:CE:C1: D2:40:F6:96:84:86:FB:BA:87:32:1D:FD:1E:37:8E:50 Timestamp : Aug 13 13:08:30.835 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FA:E9:D1:D6:43:68:02:59:7E:F7:E8: 10:DB:DD:F7:44:C0:69:2D:88:5B:EF:2F:B5:D3:2F:A1: 0D:22:AC:01:0E:02:21:00:F3:F5:21:7A:33:0B:37:AF: BF:E5:FB:5B:1F:DA:0B:46:F8:A5:DF:AB:6C:73:27:EF: BF:C6:DA:15:65:F5:DC:7F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CC:FB:0F:6A:85:71:09:65:FE:95:9B:53:CE:E9:B2:7C: 22:E9:85:5C:0D:97:8D:B6:A9:7E:54:C0:FE:4C:0D:B0 Timestamp : Aug 13 13:08:30.817 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AB:66:A5:00:6A:CA:22:48:50:43:2E: 39:6F:08:7E:F0:C4:48:81:BC:35:2C:DA:0B:E0:A6:A8: 4C:72:0B:A8:5C:02:21:00:F4:85:AC:1F:43:56:49:32: F9:B5:B1:53:0A:FC:BE:54:AE:6B:3D:83:2D:1D:2B:CB: 6A:E2:A1:76:9B:8B:C3:42
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-20T11:20:12+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2020-09-24T00:00:00+00:00
Expires
2030-09-23T23:59:59+00:00
Days remaining
1464
Serial (hex)
085F94C02D857BE8CC14FF53EDA23E2A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

1F:8E:B9:E9:A8:E0:66:CC:5B:38:33:E0:6B:31:29:76:4B:62:26:39:D5:B1:63:F6:00:E1:C7:91:20:BF:3E:ED
Certificate extensions & PEM
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----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.

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