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

mail.metc.net · 167.142.167.41:443

Verified

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

Subject
C=US ST=Iowa L=Elk Horn O=The Marne and Elk Horn Telephone Company CN=mail.metc.net
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-02-23T00:00:00+00:00
Expires
2027-03-26T23:59:59+00:00
Days remaining
166
Serial (hex)
0C5D39EE9A98917CE5961584E00D225B
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:mail.metc.net, DNS:autodiscover.metc.net, DNS:autodiscover.walnutel.net, DNS:ebill.metc.net, DNS:managemyphone.metc.net

SHA-256 fingerprint

B2:7E:2D:4B:0D:0C:63:B3:43:F2:2F:83:8A:7B:BD:78:BC:B6:FF:0B:82:E4:CC:4C:44:6D:44:D0:5F:7E:77:8E
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
EC:A4:C9:D0:36:0B:0A:23:E3:3A:60:46:75:CA:10:6B:10:B6:E2:46
subjectAltName
DNS:mail.metc.net, DNS:autodiscover.metc.net, DNS:autodiscover.walnutel.net, DNS:ebill.metc.net, DNS:managemyphone.metc.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 : Feb 23 15:59:24.640 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:9D:93:74:6C:02:AB:44:CD:4E:42:A0: 30:F2:70:1F:92:F2:06:D1:F9:29:92:70:61:C3:C2:18: 9C:CA:15:BD:C7:02:20:58:4B:A1:E6:62:0A:4D:2C:DA: 55:FD:39:52:47:91:96:7D:A3:FC:B0:D6:D1:7E:7F:D5: B7:87:9D:7A:6A:B3:D6 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 : Feb 23 15:59:24.803 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E8:55:A1:20:3F:12:B5:8B:7B:85:FA: 61:98:45:72:67:94:8F:99:52:38:6F:9F:17:DB:D0:AB: BF:3D:26:BA:74:02:20:0A:C5:2D:CE:69:26:7D:CE:AF: C1:72:D2:CA:AE:E7:53:C1:A8:FE:40:25:73:84:65:0B: 9D:4A:BA:E4:EA:A8:8A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Feb 23 15:59:24.774 2026 GMT Extensions: 00:00:05:00:02:EE:D1:19 Signature : ecdsa-with-SHA256 30:44:02:20:60:FA:33:DB:71:02:DE:44:7E:E7:7E:A4: 2B:8C:51:CD:83:04:CD:5E:BA:E4:3B:AC:17:7D:B0:4A: 11:4F:A9:EF:02:20:7C:48:AF:74:54:CF:F4:7D:55:78: DC:A9:B4:04:0C:93:46:7E:8F:54:E8:C0:5A:46:E8:02: 2D:9E:3F:9C:45:F8
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-11T03:24:57+00:00

Server-presented chain · 2 additional certificates

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
1630
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-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4114
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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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