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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

TLSv1.3

retn.net · 139.45.206.114:443

Verified

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

Subject
C=GB ST=London L=London O=RETN NETWORKS LTD CN=*.retn.net
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Valid from
2025-11-28T12:33:48+00:00
Expires
2026-12-30T12:33:47+00:00
Days remaining
97
Serial (hex)
73EF1479B11A923B10428676
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.retn.net, DNS:owa.retn.net, DNS:mail.retn.net, DNS:autodiscover.retn.net, DNS:www.retn.net, DNS:retn.net

SHA-256 fingerprint

22:65:A4:6C:79:F2:2F:27:0E:06:83:AE:11:E2:C2:79:B5:60:71:9A:45:61:81:0A:BE:44:44:FD:4D:EF:C9:0B
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.20 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.2
subjectAltName
DNS:*.retn.net, DNS:owa.retn.net, DNS:mail.retn.net, DNS:autodiscover.retn.net, DNS:www.retn.net, DNS:retn.net
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
2A:3E:30:93:4E:F3:8E:DD:05:E8:23:67:71:DA:33:34:00:32:4F:97
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11: 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3 Timestamp : Nov 28 12:33:52.588 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:49:97:CB:68:34:FD:2A:D2:07:F8:10:FD: 26:69:53:0A:BF:01:AD:6E:95:A2:9B:BC:3C:2B:E2:D7: 81:5A:7D:AA:02:20:17:C7:81:C7:32:AF:DA:B1:CA:31: 66:43:48:37:F1:59:7C:AA:94:99:99:F9:A5:C9:93:CA: 60:15:E2:5E:D7:D8 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 28 12:33:52.187 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7F:44:34:88:13:02:8A:6B:CF:72:A7:AD: 43:D2:24:4D:75:1E:2F:F1:E3:2B:A2:8D:1E:16:40:F6: 86:C6:D5:39:02:21:00:89:07:2D:29:08:49:80:46:6B: 63:FD:EC:0B:69:79:80:67:70:B6:3B:49:EC:21:C3:81: 80:C2:48:8E:52:1F:EA 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 : Nov 28 12:33:52.506 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C7:B9:47:96:65:FC:28:74:35:3F:84: 28:00:27:F8:F4:BA:8A:C4:4F:4B:6F:C6:CD:72:BF:73: 5D:8D:58:DB:EB:02:20:17:1E:9B:7A:83:6F:21:30:B1: 90:45:D9:F2:0C:29:5D:C8:61:8C:16:0D:84:06:15:53: 41:80:90:BC:F6:BD:42
-----BEGIN CERTIFICATE-----
MIIGhjCCBW6gAwIBAgIMc+8UebEakjsQQoZ2MA0GCSqGSIb3DQEBCwUAMFAxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSYwJAYDVQQDEx1H
bG9iYWxTaWduIFJTQSBPViBTU0wgQ0EgMjAxODAeFw0yNTExMjgxMjMzNDhaFw0y
NjEyMzAxMjMzNDdaMGAxCzAJBgNVBAYTAkdCMQ8wDQYDVQQIEwZMb25kb24xDzAN
BgNVBAcTBkxvbmRvbjEaMBgGA1UEChMRUkVUTiBORVRXT1JLUyBMVEQxEzARBgNV
BAMMCioucmV0bi5uZXQwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC2
hMg9GvWhRKsWVtpNpoIEdDFSS326eyGtTPzsvR/OnMTh77X6K3qUEEezgCEly6TE
gbePU1mGdmT4xzcb4peHpYi6uv4UzjoRtkwplgLVVO5ve4jHMe4GFuNGr3AwEaC/
ZCyXJjW//96ku8sGuJCn2sBjIG0zNhUmizWz/D/tnOJ88/rOxZtfrSUrjqRd4Dh+
uJDxUfkcTL6ZGmdkDh0d6SB1houbLsFPW4bBxPSxEoqhP7u9GC76z6lDVedmeyxE
Qg7/3xxBhrTVPkTorCcuT+8A0vCYNfH8cuNs+mQunoMhGUtsxfA8CCs1F3zluvsh
r9n6s1QzZTYGLSwl7hpHAgMBAAGjggNOMIIDSjAOBgNVHQ8BAf8EBAMCBaAwDAYD
VR0TAQH/BAIwADCBjgYIKwYBBQUHAQEEgYEwfzBEBggrBgEFBQcwAoY4aHR0cDov
L3NlY3VyZS5nbG9iYWxzaWduLmNvbS9jYWNlcnQvZ3Nyc2FvdnNzbGNhMjAxOC5j
cnQwNwYIKwYBBQUHMAGGK2h0dHA6Ly9vY3NwLmdsb2JhbHNpZ24uY29tL2dzcnNh
b3Zzc2xjYTIwMTgwVgYDVR0gBE8wTTBBBgkrBgEEAaAyARQwNDAyBggrBgEFBQcC
ARYmaHR0cHM6Ly93d3cuZ2xvYmFsc2lnbi5jb20vcmVwb3NpdG9yeS8wCAYGZ4EM
AQICMGEGA1UdEQRaMFiCCioucmV0bi5uZXSCDG93YS5yZXRuLm5ldIINbWFpbC5y
ZXRuLm5ldIIVYXV0b2Rpc2NvdmVyLnJldG4ubmV0ggx3d3cucmV0bi5uZXSCCHJl
dG4ubmV0MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAfBgNVHSMEGDAW
gBT473/yzXhnqN5vjySNiPGHAwKz6zAdBgNVHQ4EFgQUKj4wk07zjt0F6CNncdoz
NAAyT5cwggF9BgorBgEEAdZ5AgQCBIIBbQSCAWkBZwB1AKyrMHBs6+yEMfQT0vSR
XxEeQiRDsfKmjE88KzunHgLDAAABmsp0ocwAAAQDAEYwRAIgSZfLaDT9KtIH+BD9
JmlTCr8BrW6Vopu8PCvi14FafaoCIBfHgccyr9qxyjFmQ0g38Vl8qpSZmfmlyZPK
YBXiXtfYAHYAyzj3FYl8hKFEX1vB3fvJbvKaWc1HCmkFhbDLFMMUWOcAAAGaynSg
OwAABAMARzBFAiB/RDSIEwKKa89yp61D0iRNdR4v8eMroo0eFkD2hsbVOQIhAIkH
LSkISYBGa2P97AtpeYBncLY7Sewhw4GAwkiOUh/qAHYAwjF+V0UZo0XufzjespBB
68fCIVoiv3/Vta12mtkOUs0AAAGaynShegAABAMARzBFAiEAx7lHlmX8KHQ1P4Qo
ACf49LqKxE9Lb8bNcr9zXY1Y2+sCIBcem3qDbyEwsZBF2fIMKV3IYYwWDYQGFVNB
gJC89r1CMA0GCSqGSIb3DQEBCwUAA4IBAQCdlKVxWZHxZ0Kvo8Dd8evM3eRKyFo/
wQJMRd6LDRFkR9AG3KSXR5mRtPKggJxLwbCAubnsvpEuuY92lDaVI4rdr73qyJpg
7Xfqxq3wzFlLu/9+iamss4owyklbTjT2GPPwArr+mCqrmkppj92zeizyx8UiXDti
krqOryque8/uw5aCozsUNTO+R6XdzMO0s/XX9/8MKSP5FQYmUFh+Vk8Pyz8WfSbT
JaQhXAJTEszSO6fizdBbVstZRiV2hvlhr9lvV19sE+zXFcQyArIh8yHk3VvOhU6/
nKELgoTYVYqC6XM1PZCjTq6ghYZoB1C/fW5HeCxAAIOlKEMsq0m7Ybd2
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T13:21:07+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2018-11-21T00:00:00+00:00
Expires
2028-11-21T00:00:00+00:00
Days remaining
789
Serial (hex)
01EE5F221DFC623BD4333A8557
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B6:76:FF:A3:17:9E:88:12:09:3A:1B:5E:AF:EE:87:6A:E7:A6:AA:F2:31:07:8D:AD:1B:FB:21:CD:28:93:76:4A
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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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