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

go2tec.it · 80.88.87.92:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=*.go2tec.it
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R6 AlphaSSL CA 2025
Valid from
2026-04-21T08:21:35+00:00
Expires
2026-11-06T08:21:35+00:00
Days remaining
41
Serial (hex)
305F4C24FE37EEE722709298
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.go2tec.it, DNS:go2tec.it

SHA-256 fingerprint

6F:CA:6C:58:1C:3B:8C:36:7A:B0:92:E3:12:1B:E1:4C:97:B6:94:AF:F2:7D:85:2C:52:98:FF:7A:80:10:09:FF
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr6alphasslca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr6alphasslca2025
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3 CPS: https://www.globalsign.com/repository/
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr6alphasslca2025.crl
subjectAltName
DNS:*.go2tec.it, DNS:go2tec.it
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
C5:B4:93:8F:6F:2B:DC:1E:48:BF:B7:10:30:85:CE:D1:B2:BB:48:2D
subjectKeyIdentifier
93:F9:40:D7:BE:ED:04:ED:A9:C0:FD:11:14:5D:25:5C:9A:EF:14:C4
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Apr 21 08:21:39.330 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:86:56:C5:62:32:B2:A2:D5:2B:4B:7A: 5A:83:8D:1C:E5:4C:20:FD:9D:AD:8E:CF:91:92:28:D4: EA:9A:5B:F9:10:02:20:05:21:18:25:4E:A8:42:D0:26: 27:FA:F6:20:4D:05:A4:6C:CD:40:79:6D:AD:57:C1:DD: EE:62:E0:BF:5F:D3:C9 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 : Apr 21 08:21:39.329 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:90:30:9C:89:1B:1B:F9:61:CF:64:70: 83:2C:A2:B4:76:00:5F:E3:78:CF:67:2A:BC:29:FD:C3: 80:8D:FD:7D:B6:02:21:00:D9:15:FB:22:0F:A0:42:0B: 5F:29:FB:64:1A:CA:30:6C:5C:3A:1E:BD:4F:96:A5:00: 96:97:78:4A:CD:BE:CD:33 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Apr 21 08:21:39.326 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:85:5C:E9:FE:4C:9E:81:94:E1:E2:C0: 27:33:BD:E3:32:D6:79:77:58:90:0D:D0:3B:43:C6:88: 6E:36:D0:7E:C2:02:21:00:8E:0C:8F:5A:6B:94:B1:0B: 42:8F:84:95:CB:42:1E:AB:A9:AB:01:56:9B:45:6D:2C: 86:11:CD:AE:AC:BE:12:52
-----BEGIN CERTIFICATE-----
MIIGVjCCBT6gAwIBAgIMMF9MJP437ucicJKYMA0GCSqGSIb3DQEBCwUAMFUxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSswKQYDVQQDEyJH
bG9iYWxTaWduIEdDQyBSNiBBbHBoYVNTTCBDQSAyMDI1MB4XDTI2MDQyMTA4MjEz
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CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDJYb8ZkfoTyHZRU0exlfvHs9o6Vd+q
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FFT4GE5ZdWRsdh9AFU3KhVaxcXwu4Ky1sEbzBkC7Vpq9O3xFEd8GOf9dhY+af2aQ
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ggNjMIIDXzAOBgNVHQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIwADCBmQYIKwYBBQUH
AQEEgYwwgYkwSQYIKwYBBQUHMAKGPWh0dHA6Ly9zZWN1cmUuZ2xvYmFsc2lnbi5j
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HwQ9MDswOaA3oDWGM2h0dHA6Ly9jcmwuZ2xvYmFsc2lnbi5jb20vZ3NnY2NyNmFs
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FMQwggGABgorBgEEAdZ5AgQCBIIBcASCAWwBagB2AJROQ4f67MHvgfMZJCaoGGUB
x9NfOAIBP3JnfVU3LhnYAAABna8hd4IAAAQDAEcwRQIhAIZWxWIysqLVK0t6WoON
HOVMIP2drY7PkZIo1OqaW/kQAiAFIRglTqhC0CYn+vYgTQWkbM1AeW2tV8Hd7mLg
v1/TyQB3AMs49xWJfIShRF9bwd37yW7ymlnNRwppBYWwyxTDFFjnAAABna8hd4EA
AAQDAEgwRgIhAJAwnIkbG/lhz2RwgyyitHYAX+N4z2cqvCn9w4CN/X22AiEA2RX7
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x8IhWiK/f9W1rXaa2Q5SzQAAAZ2vIXd+AAAEAwBIMEYCIQCFXOn+TJ6BlOHiwCcz
veMy1nl3WJAN0DtDxohuNtB+wgIhAI4Mj1prlLELQo+ElctCHqupqwFWm0VtLIYR
za6svhJSMA0GCSqGSIb3DQEBCwUAA4IBAQAqJk4NJ6p+AjSeJ6TNPSUHAP6KT33G
YFYw4e5SShOixOXUfhyhmm/m9+fh7eBDTzAgjrj7ZGUuaVg+YPpLpuyhrMC2s4iT
34FWnAiMXryK7I1EB11PyQtehRdGQTb1K8ysPRMqlA6+fKrGT2uAELeUmT3SLjiS
TgQ3GWtN3W910mBG2MhCd0dSlctazRw0Z+58JhANsHin+HcQpKcO0vRIEpKbrWDG
ZSHTecsCWqfsLo2RFP5d683wuboBG+xtkFLjY6dTMQlL4hzCHC5GS7lgM06yG72C
zvFbxgPQTacloBJ8m17pju5Iy0JK1aBu3G5bk6ijxfih3vaAY2s+e8+F
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-25T11:25:24+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
OU=GlobalSign Root CA - R6 O=GlobalSign CN=GlobalSign
Issuer
OU=GlobalSign Root CA - R6 O=GlobalSign CN=GlobalSign
Valid from
2014-12-10T00:00:00+00:00
Expires
2034-12-10T00:00:00+00:00
Days remaining
2997
Serial (hex)
45E6BB038333C3856548E6FF4551
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

2C:AB:EA:FE:37:D0:6C:A2:2A:BA:73:91:C0:03:3D:25:98:29:52:C4:53:64:73:49:76:3A:3A:B5:AD:6C:CF:69
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
AE:6C:05:A3:93:13:E2:A2:E7:E2:D7:1C:D6:C7:F0:7F:C8:67:53:A0
authorityKeyIdentifier
AE:6C:05:A3:93:13:E2:A2:E7:E2:D7:1C:D6:C7:F0:7F:C8:67:53:A0
-----BEGIN CERTIFICATE-----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MgfYFGM8KEyvAgMBAAGjYzBhMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8EBTAD
AQH/MB0GA1UdDgQWBBSubAWjkxPioufi1xzWx/B/yGdToDAfBgNVHSMEGDAWgBSu
bAWjkxPioufi1xzWx/B/yGdToDANBgkqhkiG9w0BAQwFAAOCAgEAgyXt6NH9lVLN
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55wsTLxDKZmOMNOsIeDjHfrYBzN2VAAiKrlNIC5waNrlU/yDXNOd8v9EDERm8tLj
vUYAGm0CuiVdjaExUd1URhxN25mW7xocBFymFe944Hn+Xds+qkxV/ZoVqW/hpvvf
cDDpw+5CRu3CkwWJ+n1jez/QcYF8AOiYrg54NMMl+68KnyBr3TsTjxKM4kEaSHpz
oHdpx7Zcf4LIHv5YGygrqGytXm3ABdJ7t+uA/iU3/gKbaKxCXcPu9czc8FB10jZp
nOZ7BN9uBmm23goJSFmH63sUYHpkqmlD75HHTOwY3WzvUy2MmeFe8nI+z1TIvWfs
pA9MRf/TuTAjB0yPEL+GltmZWrSZVxykzLsViVO6LAUP5MSeGbEYNNVMnbrt9x+v
JJUEeKgDu+6B5dpffItKoZB0JaezPkvILFa9x8jvOOJckvB595yEunQtYQEgfn7R
8k8HWV+LLUNS60YMlOH1Zkd5d9VUWx+tJDfLRVpOoERIyNiwmcUVhAn21klJwGW4
5hpxbqCo8YLoRT5s1gLXCmeDBVrJpBA=
-----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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