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

bluemountainnet.com · 192.124.249.168:443

Verified

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

Subject
CN=bluemountainnet.com
Issuer
C=US O=Starfield Technologies CN=Starfield TLS Intermediate CA DV - R1v1
Valid from
2026-10-15T16:00:44+00:00
Expires
2027-01-13T16:00:44+00:00
Days remaining
80
Serial (hex)
541D3EE8E8ECD2CD
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:bluemountainnet.com, DNS:www.bluemountainnet.com

SHA-256 fingerprint

DA:03:F9:CD:3B:B8:23:98:D9:3C:12:19:FC:58:38:11:15:C3:1F:3B:8B:B1:82:95:EC:60:B8:13:3A:02:FE:CD
Certificate extensions & PEM
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
keyUsage
Digital Signature, Key Encipherment
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfr1v1dv_s1-1.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.16.840.1.114414.1.7.23.1 CPS: http://certificates.starfieldtech.com/repository/
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sf_tls_issuing_dv-r1v1.crt OCSP - URI:http://ocsp.starfieldtech.com/
authorityKeyIdentifier
99:B4:6D:DD:8D:0C:6D:FA:2D:A0:9F:22:21:E8:73:C2:18:BC:85:D9
subjectAltName
DNS:bluemountainnet.com, DNS:www.bluemountainnet.com
subjectKeyIdentifier
E2:3E:FC:E4:9D:A9:2E:F7:36:6D:69:9A:4E:63:D2:1A:BE:30:81:87
ct_precert_scts
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 15 16:00:46.926 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CD:18:18:36:C1:20:D3:5D:6F:64:1C: 74:EE:0D:22:1B:69:C0:55:1B:81:F9:C0:08:C4:73:4F: C9:EA:11:93:48:02:20:21:85:75:87:F0:7E:A8:7F:5A: 2F:D4:C8:F0:75:0E:D6:39:15:CF:1E:5C:3C:9D:37:5B: F5:28:DE:80:F9:19:B8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Oct 15 16:00:47.469 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:04:2D:FB:78:5F:87:43:89:F5:FD:EE:F4: 31:C3:94:E5:26:45:27:9C:BA:FF:E7:9C:B3:22:77:9C: EC:40:84:77:02:20:25:C3:F7:93:32:81:0A:3C:51:88: 21:73:0C:4A:D4:98:E1:51:B9:35:0F:DF:28:48:21:49: E3:30:50:D5:35:34 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 15 16:00:47.782 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:0B:B3:DC:D9:29:8A:95:CB:D6:08:51:77: 1E:3D:81:0E:10:4A:DA:C8:54:46:F1:E6:C0:89:F8:0D: 70:3A:C0:C6:02:21:00:82:FB:64:1B:A9:E2:5F:D9:17: 02:1E:6D:1B:D8:10:8B:92:7C:FB:18:9A:4F:32:53:D3: DC:F7:EC:CF:18:65:A9
-----BEGIN CERTIFICATE-----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dGVzLnN0YXJmaWVsZHRlY2guY29tL3JlcG9zaXRvcnkvc2ZfdGxzX2lzc3Vpbmdf
ZHYtcjF2MS5jcnQwKgYIKwYBBQUHMAGGHmh0dHA6Ly9vY3NwLnN0YXJmaWVsZHRl
Y2guY29tLzAfBgNVHSMEGDAWgBSZtG3djQxt+i2gnyIh6HPCGLyF2TA3BgNVHREE
MDAughNibHVlbW91bnRhaW5uZXQuY29tghd3d3cuYmx1ZW1vdW50YWlubmV0LmNv
bTAdBgNVHQ4EFgQU4j785J2pLvc2bWmaTmPSGr4wgYcwggF9BgorBgEEAdZ5AgQC
BIIBbQSCAWkBZwB2ANbVjanQF1Pzakqgx1dJAq/rx9ws04zZ92TIDIkZHp8CAAAB
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/JINyJnrCxx9+MlSG/r6F3c7l4vJAAABoUBLbW0AAAQDAEYwRAIgBC37eF+HQ4n1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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-25T07:40:02+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Starfield Technologies CN=Starfield TLS Intermediate CA DV - R1v1
Issuer
C=US O=Starfield Technologies CN=Starfield TLS Root CA - R1
Valid from
2025-08-27T12:00:00+00:00
Expires
2040-08-23T11:59:59+00:00
Days remaining
5051
Serial (hex)
C5E225A10DF67804EC5305DCF38E5234
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

06:89:1C:34:A2:E4:68:7C:63:0B:29:85:0C:C9:F6:D4:5D:ED:39:49:1C:F8:77:C7:24:6B:6E:C6:33:58:7A:2C
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
99:B4:6D:DD:8D:0C:6D:FA:2D:A0:9F:22:21:E8:73:C2:18:BC:85:D9
authorityKeyIdentifier
65:79:A6:5B:CD:9B:07:16:A5:40:86:B7:49:8E:22:47:C6:0B:DE:4B
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sf_tls_root-r1.crt
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sf_tls_root-r1.crl 
-----BEGIN CERTIFICATE-----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3oXc40Z3FTb9nHvre8eXJy3plI8u9OUOrc7v5Cr61j32eDhqsWaNAgMBAAGjggE1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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Starfield Technologies CN=Starfield TLS Root CA - R1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Root Certificate Authority - G2
Valid from
2025-09-24T12:00:00+00:00
Expires
2037-12-31T23:59:59+00:00
Days remaining
4085
Serial (hex)
466702AA31941FA2C196EFE6D09BAF6C
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

26:A9:3D:60:03:90:77:65:4C:0D:DA:1F:B6:34:AF:5F:F5:C1:14:C7:AC:1F:D0:44:9B:1C:9D:21:78:B0:28:FF
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
65:79:A6:5B:CD:9B:07:16:A5:40:86:B7:49:8E:22:47:C6:0B:DE:4B
authorityKeyIdentifier
7C:0C:32:1F:A7:D9:30:7F:C4:7D:68:A3:62:A8:A1:CE:AB:07:5B:27
authorityInfoAccess
CA Issuers - URI:http://certificates.starfieldtech.com/repository/sfroot-g2.crt
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.1
crlDistributionPoints
Full Name: URI:http://crl.starfieldtech.com/sfroot-g2.crl 
-----BEGIN CERTIFICATE-----
MIIFqjCCBJKgAwIBAgIQRmcCqjGUH6LBlu/m0JuvbDANBgkqhkiG9w0BAQsFADCB
jzELMAkGA1UEBhMCVVMxEDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0
c2RhbGUxJTAjBgNVBAoTHFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAw
BgNVBAMTKVN0YXJmaWVsZCBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcy
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HzAdBgNVBAoTFlN0YXJmaWVsZCBUZWNobm9sb2dpZXMxIzAhBgNVBAMTGlN0YXJm
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x7uvTkA87NU5vqOzpWtpNiXvt+DSGrFAJDyah2ia9fbS2ActrWWsBsThFt3cTHNi
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DAECAjAHBgVngQwBATA7BgNVHR8ENDAyMDCgLqAshipodHRwOi8vY3JsLnN0YXJm
aWVsZHRlY2guY29tL3Nmcm9vdC1nMi5jcmwwDQYJKoZIhvcNAQELBQADggEBALhF
42TCewfSOa+2nSV2OzCt7A+n9KJ/6Y8F5PXW++VpYZVWy6kZMrJlDus7K3oACiKE
R+Id7BldmcKxWSw6UeKOQ74DhDTJf+KTDubHDhoCHnK1d2XWJ2W+rOacLfVnvHAv
HBsLeOP6xRT4E+5zdtpnjdW/JSEeLEGETUmEkOvoJIWQptQ2AxIuEIP3FsRneiLZ
SDOyjvtLMOe3a2q8xmiOxTlqi9QmwTV/9IfoDoqsg1C5YL4eiD0xRc1m6NvecSEW
jHIMyCiFWlzO3faUOm067YthhZwzjYLghIra11NvVpsWEgpiGPBhd2UN7nGn1M0j
dZT7YeQWOBjip238/4o=
-----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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