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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

centurylink.net · 129.159.71.219:443

Verified

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

Subject
C=US ST=Louisiana L=Monroe O=Lumen Technologies, Inc. CN=centurylink.net
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-09-08T00:00:00+00:00
Expires
2027-03-25T23:59:59+00:00
Days remaining
163
Serial (hex)
04217D2B7B71FC2C40CF7FA92F3277A8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:centurylink.net, DNS:www.centurylink.net

SHA-256 fingerprint

22:12:49:44:9E:41:FE:44:5D:BE:3F:1B:6C:4B:E3:50:20:80:CF:78:E4:97:74:10:DE:31:85:61:04:A0:1B:CF
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
1C:EC:A2:25:62:28:42:D9:E3:65:8C:85:3B:65:27:63:3D:FE:51:E9
subjectAltName
DNS:centurylink.net, DNS:www.centurylink.net
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server 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 : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Sep 8 20:45:26.709 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FB:24:BE:53:B4:E5:43:AD:75:76:92: A4:47:68:D4:77:3B:06:B2:1A:8D:CD:A9:63:88:F2:B1: D7:57:D8:2A:68:02:20:4C:3C:4C:27:1F:8E:9A:E7:FA: 12:23:CB:A7:5D:90:BC:3B:06:00:24:9D:23:7E:57:D3: C6:D2:A5:AE:EC:F3:B8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 8 20:45:26.686 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7F:F7:78:9A:05:7A:47:0C:1F:DD:2E:A2: 64:06:B3:4F:47:5F:AF:69:6C:1A:82:2B:6B:A5:1B:3E: 39:D0:8B:9E:02:21:00:D5:C7:D5:DE:2F:FF:F2:72:6D: 90:B8:1B:BE:73:ED:3A:0F:C9:33:37:97:54:D4:0C:4A: A8:73:1D:95:7E:B6:6F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Sep 8 20:45:26.741 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FD:0A:C4:DD:A5:59:60:83:99:79:66: 75:30:66:86:CA:EF:B7:1E:11:F5:43:53:24:F3:26:94: F2:D3:B2:01:27:02:20:41:E9:23:CA:CC:94:A0:18:C0: BA:FB:6E:76:CA:45:EF:84:03:D0:66:BF:91:FC:FA:3D: 52:7C:1E:82:A0:87:93
-----BEGIN CERTIFICATE-----
MIIG6jCCBdKgAwIBAgIQBCF9K3tx/CxAz3+pLzJ3qDANBgkqhkiG9w0BAQsFADBZ
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTMwMQYDVQQDEypE
aWdpQ2VydCBHbG9iYWwgRzIgVExTIFJTQSBTSEEyNTYgMjAyMCBDQTEwHhcNMjYw
OTA4MDAwMDAwWhcNMjcwMzI1MjM1OTU5WjBvMQswCQYDVQQGEwJVUzESMBAGA1UE
CBMJTG91aXNpYW5hMQ8wDQYDVQQHEwZNb25yb2UxITAfBgNVBAoTGEx1bWVuIFRl
Y2hub2xvZ2llcywgSW5jLjEYMBYGA1UEAxMPY2VudHVyeWxpbmsubmV0MIIBIjAN
BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2CxXBVxs1j1C4OwtdV0Pr0/l2fT+
kIv68sCr1y1VW3e/gJevJe6M0fzRais21RYs7KgPm7R9XlE+Rporv7MMas6+qNVy
9EB4HKFEpMV/7LE7Sc4sRWWj8t6+iqR/mN9V2kTgfQ2U5vNw1CrcoRtEV8DaTwjh
qNYn43oqPLeEZSMCGLdARsdbEG0+Zeg1Hr+XbO3vafp1TyEvlQRl+NXXwF4uWr1w
vNmf5HbKzQ7DzxsZKP9FoXT7GMRSd8N60BurTQNTNkFNBqgxxQwy4LhWtHYHm1oT
tSnoTkjCyDrn+giGG9/xD8w2YuWfsdN5Ox0tG5co42XNZLzXidGnfYJZfQIDAQAB
o4IDljCCA5IwHwYDVR0jBBgwFoAUdIWAwGbH3zfez70pN6oDHb7tzRcwHQYDVR0O
BBYEFBzsoiViKELZ42WMhTtlJ2M9/lHpMC8GA1UdEQQoMCaCD2NlbnR1cnlsaW5r
Lm5ldIITd3d3LmNlbnR1cnlsaW5rLm5ldDA+BgNVHSAENzA1MDMGBmeBDAECAjAp
MCcGCCsGAQUFBwIBFhtodHRwOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwDgYDVR0P
AQH/BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMIGfBgNVHR8EgZcwgZQwSKBG
oESGQmh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbEcyVExT
UlNBU0hBMjU2MjAyMENBMS0xLmNybDBIoEagRIZCaHR0cDovL2NybDQuZGlnaWNl
cnQuY29tL0RpZ2lDZXJ0R2xvYmFsRzJUTFNSU0FTSEEyNTYyMDIwQ0ExLTEuY3Js
MIGHBggrBgEFBQcBAQR7MHkwJAYIKwYBBQUHMAGGGGh0dHA6Ly9vY3NwLmRpZ2lj
ZXJ0LmNvbTBRBggrBgEFBQcwAoZFaHR0cDovL2NhY2VydHMuZGlnaWNlcnQuY29t
L0RpZ2lDZXJ0R2xvYmFsRzJUTFNSU0FTSEEyNTYyMDIwQ0ExLTEuY3J0MAwGA1Ud
EwEB/wQCMAAwggF+BgorBgEEAdZ5AgQCBIIBbgSCAWoBaAB2AExj3JjlnB2riPYe
ij3ero+rRKM3e1+blMP7oZz8wb4mAAABoILEvTUAAAQDAEcwRQIhAPskvlO05UOt
dXaSpEdo1Hc7BrIajc2pY4jysddX2CpoAiBMPEwnH46a5/oSI8unXZC8OwYAJJ0j
flfTxtKlruzzuAB2ANbVjanQF1Pzakqgx1dJAq/rx9ws04zZ92TIDIkZHp8CAAAB
oILEvR4AAAQDAEcwRQIgf/d4mgV6Rwwf3S6iZAazT0dfr2lsGoIra6UbPjnQi54C
IQDVx9XeL//ycm2QuBu+c+06D8kzN5dU1AxKqHMdlX62bwB2AETCvQzpFA5kpclK
AZMKWqG7NZcOAO4RFoloKhxE17VmAAABoILEvVUAAAQDAEcwRQIhAP0KxN2lWWCD
mXlmdTBmhsrvtx4R9UNTJPMmlPLTsgEnAiBB6SPKzJSgGMC6+252ykXvhAPQZr+R
/Po9UnwegqCHkzANBgkqhkiG9w0BAQsFAAOCAQEALEsMQfMgLpdfyur3exT7i53u
ztINCx9o2tA/fn5pZ1Pw5OHntH5sdk3KhhkYQsBCpXYKoxQcCEgTMCzQNacKvh0B
2rxpUnLgC4S2uY5gDkh+oKqYLN0cED0t4hoTR5o6UK7xIYBrWn9Qf4RPwx6n32q0
YlXIE0Lh7r8eQGUPBxU+03AAwEWHqZdWhe99NtVnOh5OK4NZYbOK2SDgcH76ihf8
U8gl0W6tLJE+vl+/8U4rXGo5tXoo6BAVNbOD2eegKReLLEtJWZFxnn+13vRU2WCy
F0pUhii2ufdfDio6lAp/A2ayYd6hKrdtJU4r0QqR/pHR34J2YGxqM387EyDJmA==
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-13T00:52:15+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
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1628
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
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
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
certificatePolicies
Policy: 2.16.840.1.114412.2.1 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.

View certificate JSON

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