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

frontiernet.net · 50.48.212.222:443

Verified

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

Subject
C=US ST=Texas L=Dallas O=FRONTIER COMMUNICATIONS CORPORATION CN=*.frontiernet.net
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-07-27T00:00:00+00:00
Expires
2027-02-10T23:59:59+00:00
Days remaining
143
Serial (hex)
0138CD0555EAA18BC2DDBF61E673CB96
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.frontiernet.net, DNS:frontiernet.net

SHA-256 fingerprint

4A:3F:97:31:29:19:F0:5F:89:96:1D:71:AC:B7:2D:BD:95:56:C3:19:DF:A8:7D:EC:C5:54:99:04:A9:33:AD:21
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
4D:9D:BE:53:57:C1:2C:DD:C5:A7:B0:AB:9D:4B:BA:6C:41:D2:7D:DA
subjectAltName
DNS:*.frontiernet.net, DNS:frontiernet.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://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.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 : Jul 27 14:04:31.276 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:EE:BC:87:55:B3:F8:44:A9:EE:B4:C9: 11:60:A7:D8:66:87:03:D7:A0:B1:F1:A7:FB:A7:3D:6A: 42:75:20:5B:C2:02:20:2A:1F:CD:BF:68:11:2B:26:BD: 17:16:9A:4B:10:D1:62:61:1A:01:15:03:C6:BA:5C:90: 85:13:E7:BE:FF:FA:BE 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 : Jul 27 14:04:31.271 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:11:EA:29:A3:D0:B7:28:02:07:29:50:FF: D4:F0:ED:DF:81:17:77:C4:C4:04:C9:77:69:D3:69:3A: B4:D8:AC:63:02:20:39:81:EA:3E:70:87:D4:07:FF:D4: E3:0D:4B:07:B0:E9:72:84:FC:2E:75:34:78:9D:13:94: 85:97:3F:A4:C4:26 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Jul 27 14:04:31.354 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:11:1F:DF:9D:86:94:25:66:D4:20:15:AB: EA:35:79:CF:D4:23:B1:3E:64:66:77:A5:2D:8C:F5:20: E3:AD:F8:57:02:21:00:AB:6B:C9:69:B4:2C:66:ED:9E: 32:6E:B5:DB:88:D0:23:27:5E:67:0B:AD:C7:D0:57:78: F9:38:03:15:8F:59:90
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-20T14:46:00+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
407
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
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
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----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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