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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

TLSv1.2

nmgco.com · 65.103.76.219:443

Verified

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

Subject
C=US ST=Florida L=Tampa O=Teco Energy, Inc. CN=www.nmgco.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-10-08T00:00:00+00:00
Expires
2027-04-24T23:59:59+00:00
Days remaining
184
Serial (hex)
05CE75FBBA2B7B840BB4668B82946493
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.nmgco.com, DNS:nmgco.com, DNS:prod.nmgco.com, DNS:prod1.nmgco.com, DNS:prod2.nmgco.com, DNS:nasp.nmgco.com

SHA-256 fingerprint

EF:77:16:45:B9:26:22:AA:2A:19:92:A4:38:9D:BF:90:7B:55:F1:16:A0:D7:4D:4F:B5:6E:4B:88:E5:23:41:5B
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
21:57:BA:3E:E8:77:A3:27:5E:E6:35:30:B0:70:63:F0:4E:21:4A:6A
subjectAltName
DNS:www.nmgco.com, DNS:nmgco.com, DNS:prod.nmgco.com, DNS:prod1.nmgco.com, DNS:prod2.nmgco.com, DNS:nasp.nmgco.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://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 : Oct 8 16:50:32.051 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FA:B7:FE:09:A4:F1:5D:F5:88:7A:EF: E9:69:0E:C6:85:CF:BC:77:F6:A7:EB:0E:6C:4F:5C:F2: BA:23:1D:C4:97:02:20:72:C4:08:62:39:59:56:B7:38: F0:51:C4:60:47:9A:C2:5F:ED:0F:EE:24:1F:79:39:D7: 2F:1B:4E:97:4E:70:C6 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 : Oct 8 16:50:32.052 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:64:24:C3:39:8B:69:EF:9D:CD:AD:48:51: B1:BB:C1:F6:8E:34:C0:64:C5:37:3D:14:82:FC:51:4E: 60:CE:A5:55:02:20:5D:4A:82:B6:FC:3B:32:45:5D:3C: 80:89:EC:76:4D:1B:C8:95:DB:66:8B:3C:B6:79:A7:43: 63:7C:50:5D:0F:60 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 : Oct 8 16:50:32.130 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:9B:6D:64:3E:07:45:B4:27:AC:16:A9: 9C:07:54:AB:02:9D:A7:F0:5C:FD:A2:F2:8A:46:62:70: 31:1A:13:90:CF:02:21:00:F3:AA:CC:9F:43:92:D6:09: 2D:3A:70:39:15:A9:34:20:52:20:FC:44:4B:B1:AC:34: BA:E7:7D:67:12:9F:42:C6
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: AES256-SHA · Checked 2026-10-22T21:06:08+00:00

Server-presented chain · 2 additional certificates

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
375
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-----

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
4102
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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