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

gnm.net · 109.239.132.109:443

Verified

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

Subject
CN=*.gnm.net
Issuer
C=CH O=SwissSign AG CN=SwissSign RSA TLS DV ICA 2022 - 1
Valid from
2025-11-18T08:10:04+00:00
Expires
2026-11-18T08:10:04+00:00
Days remaining
55
Serial (hex)
5E40E61DED1948E0B85FB0DC84E7483332E8676F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.gnm.net, DNS:gnm.net

SHA-256 fingerprint

04:21:33:61:13:93:BD:F3:C9:E1:FA:64:AE:98:5C:93:A3:5B:7E:59:91:D5:24:88:04:81:CA:8C:F5:89:97:58
Certificate extensions & PEM
authorityInfoAccess
CA Issuers - URI:http://aia.swisssign.ch/air-1b863385-f4a9-47fa-88a5-2a5abfd4a167 OCSP - URI:http://ocsp.swisssign.ch/sign/ocs-aaccced5-66e8-4069-9b1b-fd29ab73efec
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 0.4.0.2042.1.6 Policy: 2.16.756.1.89.2.1.1 CPS: https://repository.swisssign.com/SwissSign_CPS_TLS.pdf
crlDistributionPoints
Full Name: URI:http://crl.swisssign.ch/cdp-679723b2-8641-4642-8500-f6d2ff37e6ba
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
keyUsage
Digital Signature, Key Encipherment
subjectAltName
DNS:*.gnm.net, DNS:gnm.net
subjectKeyIdentifier
F6:91:FA:7D:C1:DC:38:13:B8:EF:95:A9:EC:43:56:94:ED:50:27:E4
authorityKeyIdentifier
EB:BD:7F:49:93:8C:C9:EE:EC:A2:BA:F7:1C:D2:67:F0:83:B1:EA:DE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Nov 18 08:10:05.253 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:66:9B:FC:A4:93:C2:40:88:F7:E5:91:8B: D8:1E:25:BC:36:9B:5A:FF:D6:4D:F2:0A:16:19:B3:A4: 65:16:49:DD:02:21:00:D3:1B:1E:2E:B2:21:DA:10:6A: 3B:00:2C:42:18:BB:3B:46:36:F2:E4:4B:42:74:66:5E: 16:91:5D:EF:07:7F:0F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 74:DB:9D:58:F7:D4:7E:9D:FD:78:7A:16:2A:99:1C:18: CF:69:8D:A7:C7:29:91:8C:9A:18:B0:45:0D:BA:44:BC Timestamp : Nov 18 08:10:06.880 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:45:AB:A7:51:A8:50:8C:90:9B:B8:AE:0B: E8:61:4C:CB:F3:FC:19:4E:C1:B9:C2:75:C5:CD:53:C2: 2C:2D:50:75:02:20:6E:78:DC:2B:A7:A9:D8:C1:C5:97: B4:9A:59:63:DF:32:D2:27:D3:DC:3A:3E:AF:A9:EE:AB: F0:A5:1D:E4:AD:2E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Nov 18 08:10:04.702 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:77:0D:FB:5F:62:DF:4A:88:97:AD:3F:62: 53:17:09:20:D2:A9:AF:2F:CC:3C:0E:12:6B:7E:9C:88: 2E:81:85:AE:02:21:00:D5:E1:58:EB:79:49:42:C2:7E: 89:D9:C4:C9:C8:B1:6F:2C:D5:45:3C:29:3D:45:6A:67: D7:DF:20:01:73:B8:D2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Nov 18 08:10:04.826 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:38:40:DB:9C:8A:2A:28:46:DD:F4:78:CC: A9:A5:78:B5:C7:C9:D1:A9:3F:FD:49:80:B9:5C:29:F5: F1:CF:A5:0B:02:20:2B:60:5E:69:F9:97:0E:6D:4C:E5: BF:98:FD:09:00:DC:51:5C:49:DE:10:74:6F:84:67:22: 18:98:01:45:E4:24
-----BEGIN CERTIFICATE-----
MIIH9zCCBd+gAwIBAgIUXkDmHe0ZSOC4X7DchOdIMzLoZ28wDQYJKoZIhvcNAQEL
BQAwUDELMAkGA1UEBhMCQ0gxFTATBgNVBAoTDFN3aXNzU2lnbiBBRzEqMCgGA1UE
AxMhU3dpc3NTaWduIFJTQSBUTFMgRFYgSUNBIDIwMjIgLSAxMB4XDTI1MTExODA4
MTAwNFoXDTI2MTExODA4MTAwNFowFDESMBAGA1UEAwwJKi5nbm0ubmV0MIIBIjAN
BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo8VVf5DSVGCHOG12h+fXtdW3GPjC
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K50r1a3WTr7bEm1Ktr6g0cErtmNTtIX9sql1YIUvHLp8l/W8Sfx35ClLI0oGz18K
ykObPk+9AUIQ0EVL1g9Dj84aQyJW9rWmfnOkEmcmfJM1JfW9Wxh5prYSlQIDAQAB
o4IEAzCCA/8wgbIGCCsGAQUFBwEBBIGlMIGiMEwGCCsGAQUFBzAChkBodHRwOi8v
YWlhLnN3aXNzc2lnbi5jaC9haXItMWI4NjMzODUtZjRhOS00N2ZhLTg4YTUtMmE1
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AEYwRAIgRaunUahQjJCbuK4L6GFMy/P8GU7BucJ1xc1TwiwtUHUCIG543CunqdjB
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CmkFhbDLFMMUWOcAAAGalgOGHgAABAMARzBFAiB3DftfYt9KiJetP2JTFwkg0qmv
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AHUA2AlVO5RPev/IFhlvlE+Fq7D4/F6HVSYPFdEucrtFSxQAAAGalgOGmgAABAMA
RjBEAiA4QNuciiooRt30eMyppXi1x8nRqT/9SYC5XCn18c+lCwIgK2BeafmXDm1M
5b+Y/QkA3FFcSd4QdG+EZyIYmAFF5CQwDQYJKoZIhvcNAQELBQADggIBAADj8Erp
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t8t20v9yb4xTxNr2Rm0PNiT9/Ebd/eg7MjuoHV8i4aMU92uZXWBwjejh4y7dvvmK
g7aJDm3Uwc72CU7A9e8WFZ4TGGeWcm/TJdGhKrQXSz/gKe2y2HHX5PEi8gTCs1rh
COvhJagD3Hf+TAb7IKmYHfONAd3k6sAVbAlN67x2OU0kKDVl8FYB0AFoj+DaDwma
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AFZTud/B0JXmgKmZDq/nlF4E+8Y+0trWBp5+4qAt3sftbfnFctNoponOIZ9kpc6H
4mgfNMRPtaPgtmKgI4oZaxwBYGFSBNk1ngrPCTEPrf6cqW49Ld5P/LcwAKtLXfXd
zzPNv/wf9Wd8amFzbnRe5CvnoMiX8CDnmaNjsxYq8e25TfgKu0C+ZEdcjirnuTUN
Eead9W/xRsuEYFn2AN0PztOBpPKBoipUQ/au
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T12:47:12+00:00

Server-presented chain · 3 additional certificates

Chain certificate 1

Subject
C=CH O=SwissSign AG CN=SwissSign RSA TLS DV ICA 2022 - 1
Issuer
C=CH O=SwissSign AG CN=SwissSign RSA TLS Root CA 2022 - 1
Valid from
2022-06-29T09:27:46+00:00
Expires
2036-06-29T09:27:46+00:00
Days remaining
3566
Serial (hex)
75F85DDB06B0FA815891EA83C5CCFCE5578C190F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B4:00:25:0E:F2:B0:9B:30:E9:AA:A3:E2:C2:00:17:B8:91:1B:D0:39:DF:8A:F5:49:49:C6:0A:ED:5B:F6:97:D4
Certificate extensions & PEM
authorityInfoAccess
CA Issuers - URI:http://aia.swisssign.ch/air-aeff374d-0f7a-4c55-a034-1440290cfa32
basicConstraints
CA:TRUE, pathlen:0
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 0.4.0.2042.1.6 Policy: 2.16.756.1.89.2.1.1
crlDistributionPoints
Full Name: URI:http://crl.swisssign.ch/cdp-9661c29f-9121-4f46-acd8-ead4a22f7160
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
keyUsage
Certificate Sign, CRL Sign
subjectKeyIdentifier
EB:BD:7F:49:93:8C:C9:EE:EC:A2:BA:F7:1C:D2:67:F0:83:B1:EA:DE
authorityKeyIdentifier
6F:8E:62:8B:93:43:B0:E1:40:F6:A7:C3:FD:F1:0F:B8:0F:15:38:A5
-----BEGIN CERTIFICATE-----
MIIGlDCCBHygAwIBAgIUdfhd2waw+oFYkeqDxcz85VeMGQ8wDQYJKoZIhvcNAQEL
BQAwUTELMAkGA1UEBhMCQ0gxFTATBgNVBAoTDFN3aXNzU2lnbiBBRzErMCkGA1UE
AxMiU3dpc3NTaWduIFJTQSBUTFMgUm9vdCBDQSAyMDIyIC0gMTAeFw0yMjA2Mjkw
OTI3NDZaFw0zNjA2MjkwOTI3NDZaMFAxCzAJBgNVBAYTAkNIMRUwEwYDVQQKEwxT
d2lzc1NpZ24gQUcxKjAoBgNVBAMTIVN3aXNzU2lnbiBSU0EgVExTIERWIElDQSAy
MDIyIC0gMTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAKaewTKDmQFX
6+of4Wer3wvRdsofqoCXxvqGqOHJgORUn84QiI+O0YMpfix3xkC7G6aD9hR/ziqj
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hxOXdMmfP7cCBz8t9ab/ciBl6O9F6SgrH/cF9hXI30Z0IoVJOV6EqF4PVQYuxPIQ
I0SGTRqYVAflmP6R3awJ1p4cUJiZx9OJ4aLobiM/5gVE+w/SQv9OJW0f9vMcNvsW
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Or48cypLhUnoBkDbEgtQINGgfAhjZ1SjxTowlpFqjILy1IBxhiTMbUKcqKu1kPZc
CRjKE3qy/YoXE4c1ka8LSeDCNXxAqgmQA5aGcQ4yjrNcSmk8+47H6Dw4rX9xJKBY
ka0LA9macG70RsWGcxi63/UeS2iYYYE1iC+GC+K91TMlMyNAtvsE+Mp1jiqtTe8e
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65TIL9OSfiIOWjxOEuHVFbKelijxSmxGz0cPqLXu0C4ThEsy0pRy4sMRKvz7YjH2
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Rkginq0r/NJDnKSrkX99npg/uA+lOK6xu2BWKNfXeYzQ2Pve6fEh0DHPn7VjHm7D
hx1iWYeWcbv6FiVNxsUHxVv8XGFsXOrYCwPM1d9523mTsdvlF0m53vJvVeAxkycZ
Ft4DNRbbDWJj3Bolxt6ugnQixiIY6UPVxbeV8injZI1CGa134s/swkiCdjPupjei
9vj5C7WX+kX8F9Tp0HPbjh2rDrsCFdOlfzhVpYTXA5m8Wh7ZFn7W6Y49mPHVFSP3
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h1KhtHOgXPBh4hBwI6BqauK8WGBHnRvZ162FfDN3xHxmSIYKqfrysQ4MhPlp4bO3
JpsVa2mtZ50=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=CH O=SwissSign AG CN=SwissSign RSA TLS Root CA 2022 - 1
Issuer
C=CH O=SwissSign AG CN=SwissSign Gold CA - G2
Valid from
2022-06-28T11:27:11+00:00
Expires
2036-09-22T11:27:11+00:00
Days remaining
3651
Serial (hex)
686F43B4DC404C067E230E3FAFC32B
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

28:8B:4A:9F:60:5B:09:B9:99:B2:15:85:08:25:C8:1F:9B:53:7D:BA:F2:36:64:AC:A9:8B:F6:BA:98:ED:C3:79
Certificate extensions & PEM
basicConstraints
CA:TRUE
subjectKeyIdentifier
6F:8E:62:8B:93:43:B0:E1:40:F6:A7:C3:FD:F1:0F:B8:0F:15:38:A5
authorityKeyIdentifier
5B:25:7B:96:A4:65:51:7E:B8:39:F3:C0:78:66:5E:E8:3A:E7:F0:EE
keyUsage
Certificate Sign, CRL Sign
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.swisssign.net/5B257B96A465517EB839F3C078665EE83AE7F0EE 
-----BEGIN CERTIFICATE-----
MIIF6zCCA9OgAwIBAgIPaG9DtNxATAZ+Iw4/r8MrMA0GCSqGSIb3DQEBCwUAMEUx
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Huc70rR7GQvmNkLXFNO5LtgH30x+jV4x1NNN7ocLaE8avpkBFRnyLyTzZojzF0xr
6EIVwNqGaQ1GPP9sVbkYyGGvocrnBx5Y1ZgCLYuXjDF1AlednW9UvErUuZleu0JQ
O+15dt39UZWeakPzW6CS6/mCSS67+nelwPO4m9d1wl5XMcP5tYqaqsvjidl+7zZB
M5bBv84U4u6lchVb+BW+frarzXXbiDm5n0irymDLh9E2mqA4cVRN20K0FMfcqSgn
ChbywxBn80eucQog3k9RisfBgesYLM4gYTUvnUbPnMVrNw17hb/kNBD2Zr14g3tC
CQOjCPzNy5WlF1Nxw9HcYrI4wM6uJJZFr8xrmOBaDg3sOZsJ184BQ6DhqCDxY6Zo
5aQtbee6dEJ896aFMrvIRUcVXXA6/43Z0/O8MXmKSbwldLH8UlC5ospz+PqxmS4d
ZdAsj+tP1NMLgRTGX19F9FBFw6cCL7zgVinytIJ7Gg==
-----END CERTIFICATE-----

Chain certificate 3

Subject
C=CH O=SwissSign AG CN=SwissSign Gold CA - G2
Issuer
C=CH O=SwissSign AG CN=SwissSign Gold CA - G2
Valid from
2006-10-25T08:30:35+00:00
Expires
2036-10-25T08:30:35+00:00
Days remaining
3684
Serial (hex)
BB401C43F55E4FB0
Signature
RSA-SHA1
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

62:DD:0B:E9:B9:F5:0A:16:3E:A0:F8:E7:5C:05:3B:1E:CA:57:EA:55:C8:68:8F:64:7C:68:81:F2:C8:35:7B:95
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
5B:25:7B:96:A4:65:51:7E:B8:39:F3:C0:78:66:5E:E8:3A:E7:F0:EE
authorityKeyIdentifier
5B:25:7B:96:A4:65:51:7E:B8:39:F3:C0:78:66:5E:E8:3A:E7:F0:EE
certificatePolicies
Policy: 2.16.756.1.89.1.2.1.1 CPS: http://repository.swisssign.com/
-----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

Registration / WHOIS →DNS records →