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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

cnrs.fr · 80.94.184.70:443

Verified

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

Subject
C=FR L=Paris O=Centre national de la recherche scientifique CN=www.cnrs.fr
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-24T14:23:56+00:00
Expires
2027-02-08T14:23:55+00:00
Days remaining
99
Serial (hex)
77AA89CE0F6B34AC2238FA41875BB379
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:www.cnrs.fr, DNS:www.insb.cnrs.fr, DNS:insb.cnrs.fr, DNS:www.insu.cnrs.fr, DNS:insmi.cnrs.fr, DNS:inc.cnrs.fr, DNS:www.inc.cnrs.fr, DNS:inp.cnrs.fr, DNS:www.inee.cnrs.fr, DNS:insis.cnrs.fr, DNS:insu.cnrs.fr, DNS:www.inshs.cnrs.fr, DNS:www.inp.cnrs.fr, DNS:www.insmi.cnrs.fr, DNS:www.in2p3.cnrs.fr, DNS:ins2i.cnrs.fr, DNS:www.marketing.cnrs.fr, DNS:www.ins2i.cnrs.fr, DNS:cnrs.fr, DNS:marketing.cnrs.fr, DNS:www.insis.cnrs.fr, DNS:inshs.cnrs.fr, DNS:inee.cnrs.fr, DNS:in2p3.cnrs.fr

SHA-256 fingerprint

96:98:4F:E6:66:62:EC:5A:5C:C2:97:59:D7:84:D3:12:83:46:7B:BB:54:CD:83:9F:15:45:E7:14:3E:AE:65:A3
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-R1.cer
subjectAltName
DNS:www.cnrs.fr, DNS:www.insb.cnrs.fr, DNS:insb.cnrs.fr, DNS:www.insu.cnrs.fr, DNS:insmi.cnrs.fr, DNS:inc.cnrs.fr, DNS:www.inc.cnrs.fr, DNS:inp.cnrs.fr, DNS:www.inee.cnrs.fr, DNS:insis.cnrs.fr, DNS:insu.cnrs.fr, DNS:www.inshs.cnrs.fr, DNS:www.inp.cnrs.fr, DNS:www.insmi.cnrs.fr, DNS:www.in2p3.cnrs.fr, DNS:ins2i.cnrs.fr, DNS:www.marketing.cnrs.fr, DNS:www.ins2i.cnrs.fr, DNS:cnrs.fr, DNS:marketing.cnrs.fr, DNS:www.insis.cnrs.fr, DNS:inshs.cnrs.fr, DNS:inee.cnrs.fr, DNS:in2p3.cnrs.fr
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 0.4.0.2042.1.7 Policy: 1.3.6.1.4.1.26513.1.1.1.2
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-GEANT-TLS-R1.crl
subjectKeyIdentifier
A7:3C:34:B4:54:AA:4C:60:9E:11:E4:06:76:D5:E3:C9:D5:B7:30:4B
keyUsage
Digital Signature, Key Encipherment
ct_precert_scts
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 : Jul 24 14:33:58.411 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A0:2F:60:8F:E1:88:53:B6:1A:D1:34: 01:9D:FE:61:FB:39:FB:D2:BF:80:FA:A7:9F:31:0C:36: 73:ED:9E:FA:D2:02:21:00:C0:7A:D2:C7:77:C1:4C:8D: F0:AB:FA:23:67:EC:E2:D2:44:42:3C:3B:A0:66:F7:87: E1:12:48:1E:DD:B3:BE:78 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Jul 24 14:33:58.448 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DA:78:BA:30:AB:DF:45:5B:B7:F9:62: C6:8C:BC:A4:FD:71:08:C2:37:4D:78:BB:B1:E2:A3:98: 04:11:B4:89:18:02:20:15:3E:7F:1C:49:27:DB:CB:5F: 8F:8D:F0:77:92:1A:20:6C:47:27:59:69:64:67:23:B4: 45:00:B5:5D:6A:10:51 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Jul 24 14:33:58.394 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:2D:3F:E9:33:A8:AE:51:B9:71:8D:4B:30: 0A:89:CF:37:13:5B:34:CE:C9:73:13:FF:80:0C:21:EE: 65:AF:2D:F3:02:21:00:9D:C1:6F:A2:8C:E0:12:1B:07: 83:B2:A5:E2:A2:EA:A2:70:FE:D8:59:52:46:E6:02:B9: 5D:15:1C:44:A2:10:4C
-----BEGIN CERTIFICATE-----
MIIJKTCCB5GgAwIBAgIQd6qJzg9rNKwiOPpBh1uzeTANBgkqhkiG9w0BAQsFADBg
MQswCQYDVQQGEwJHUjE3MDUGA1UECgwuSGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJl
c2VhcmNoIEluc3RpdHV0aW9ucyBDQTEYMBYGA1UEAwwPR0VBTlQgVExTIFJTQSAx
MB4XDTI2MDcyNDE0MjM1NloXDTI3MDIwODE0MjM1NVowajELMAkGA1UEBhMCRlIx
DjAMBgNVBAcMBVBhcmlzMTUwMwYDVQQKDCxDZW50cmUgbmF0aW9uYWwgZGUgbGEg
cmVjaGVyY2hlIHNjaWVudGlmaXF1ZTEUMBIGA1UEAwwLd3d3LmNucnMuZnIwggIi
MA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC/3YR3T7LdDVdsPDPKVR+VS8tP
fnrj1cmgQ1tiChEV8hpMzF9qch6lDN9lt4Wc67sS9QLatYjVPLB3p+53RhHq66ql
wlcLGXFXX6fuAkmQLec3H2Gv7HqYaCgTvNTXkXAmvkU9hhBT5BEPyyL1rPzQvuOS
I31Bh7OO/UP1WRD4howgpc0iwxzeu5ZrHZfXUJnynYr8D7SjhF0f+StC3F0li4JH
uReTpDYhdZS0vJ607jQ64CeBwLkw91OtTR4mdDfKcIRvh1TYeiaMG2BWEJ1Sxbjv
ASD+N5OLW5iGRzyu3+mvqkTPg+SreCWaLsfsHUoMtQlETe5iOscki6M+jdOpzilv
VOXNNpFd+xEb2xAm1gFwx4Rf03ljopOiMw5bQDjggNo9OH7CEhwUxcyO6JS4fTFd
MQB+KdV1utgnDTimcfOd45Vy6T/zWyhCvlI9Ctv1CEKv/3hYjG//8S6pnn+k79kd
q4bG68+SIXUvGxyGrzdkcuoaTkcV96PMEVRIyu5iLZNvK5nX5gfjmvI5f5KzIQfV
6+0LzmQRN87Pv/4g4Us2tSDIPfiSO5QFPt+XF8DXhkjo8vyRE7rI40I+Wd+XwFhg
4tNj0LuAYyIy7QVqK3ZlSaDIemKdpP+TXh/HLojf1u9+e2aBSvBzx4aXOnZ/DWh0
pe4nSMXUn3PjKqNAyQIDAQABo4IEUzCCBE8wDAYDVR0TAQH/BAIwADAfBgNVHSME
GDAWgBSGAXI/jKlw4jEGUxbOAV9becg8OzBIBggrBgEFBQcBAQQ8MDowOAYIKwYB
BQUHMAKGLGh0dHA6Ly9jcnQuaGFyaWNhLmdyL0hBUklDQS1HRUFOVC1UTFMtUjEu
Y2VyMIIBkwYDVR0RBIIBijCCAYaCC3d3dy5jbnJzLmZyghB3d3cuaW5zYi5jbnJz
LmZyggxpbnNiLmNucnMuZnKCEHd3dy5pbnN1LmNucnMuZnKCDWluc21pLmNucnMu
ZnKCC2luYy5jbnJzLmZygg93d3cuaW5jLmNucnMuZnKCC2lucC5jbnJzLmZyghB3
d3cuaW5lZS5jbnJzLmZygg1pbnNpcy5jbnJzLmZyggxpbnN1LmNucnMuZnKCEXd3
dy5pbnNocy5jbnJzLmZygg93d3cuaW5wLmNucnMuZnKCEXd3dy5pbnNtaS5jbnJz
LmZyghF3d3cuaW4ycDMuY25ycy5mcoINaW5zMmkuY25ycy5mcoIVd3d3Lm1hcmtl
dGluZy5jbnJzLmZyghF3d3cuaW5zMmkuY25ycy5mcoIHY25ycy5mcoIRbWFya2V0
aW5nLmNucnMuZnKCEXd3dy5pbnNpcy5jbnJzLmZygg1pbnNocy5jbnJzLmZyggxp
bmVlLmNucnMuZnKCDWluMnAzLmNucnMuZnIwLQYDVR0gBCYwJDAIBgZngQwBAgIw
CAYGBACPegEHMA4GDCsGAQQBgc8RAQEBAjAdBgNVHSUEFjAUBggrBgEFBQcDAgYI
KwYBBQUHAwEwPQYDVR0fBDYwNDAyoDCgLoYsaHR0cDovL2NybC5oYXJpY2EuZ3Iv
SEFSSUNBLUdFQU5ULVRMUy1SMS5jcmwwHQYDVR0OBBYEFKc8NLRUqkxgnhHkBnbV
48nVtzBLMA4GA1UdDwEB/wQEAwIFoDCCAX8GCisGAQQB1nkCBAIEggFvBIIBawFp
AHcAYEyar3p/d18B1Ab8kg3ImesLHH34yVIb+voXdzuXi8kAAAGflIwdiwAABAMA
SDBGAiEAoC9gj+GIU7Ya0TQBnf5h+zn70r+A+qefMQw2c+2e+tICIQDAetLHd8FM
jfCr+iNn7OLSREI8O6Bm94fhEkge3bO+eAB2AEaiOWfGDbZGh8ZvPfmZlHaTpqYR
IIRX1VXn49Ch2bZGAAABn5SMHbAAAAQDAEcwRQIhANp4ujCr30Vbt/lixoy8pP1x
CMI3TXi7seKjmAQRtIkYAiAVPn8cSSfby1+PjfB3khogbEcnWWlkZyO0RQC1XWoQ
UQB2AETCvQzpFA5kpclKAZMKWqG7NZcOAO4RFoloKhxE17VmAAABn5SMHXoAAAQD
AEcwRQIgLT/pM6iuUblxjUswConPNxNbNM7JcxP/gAwh7mWvLfMCIQCdwW+ijOAS
GweDsqXiouqicP7YWVJG5gK5XRUcRKIQTDANBgkqhkiG9w0BAQsFAAOCAYEAaQBg
OYdSxdxYxu7R0IED715gsnwmdK9EzVpPcElKsVQEyvYmkuEwpEmekhPERTtvtsKI
yge2kQf8dMubsG3I9gwn85eNr/3tt/I/HQGjHL1moJEbZgt9Pbjx7BCtF4rrtrgk
szcww9VfMPcYr6WcNGhr8UVZFVQFjUHv/CfhmYKJTm3vRdbGbySOPfAroYPnF7aN
n+w/eI4QohrxlJDz9W4hUht0W4gvhTDeuHVrC3OB1oALLh0mMbzzV1noBOXGxuId
ugxUIkXvr7cE/166UJlaoYEINAXBsx8noWXarTNAkWBIOQPrlorZQV8sUmHxg3zO
la4o2mcK0z9PNBgtSaZlHu/NcjQzkU0TB5IjxkPIL5YAOy+P7pGr6GGrOHHmNZBX
/9AHAV1X3YXqtL/X6rzSROXlBWkt5MHtlkZDuFbWkdrNOKhkDUg3b+LDlGyhXVcF
iAfpc9UxABvs50sFPkxVC997DerR50J+mqoR4MEdCCBgetVoXpromt6+BGg2
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-31T17:16:51+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Valid from
2025-01-03T11:15:00+00:00
Expires
2039-12-31T11:14:59+00:00
Days remaining
4808
Serial (hex)
14D57BF3692228219A5567FA91651B22
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

5B:67:8D:C4:40:95:A5:28:95:B6:3B:31:F2:72:27:F4:B3:6C:3E:34:74:91:BF:2B:FA:69:18:37:A5:FB:8C:79
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-TLS-Root-2021-RSA.cer
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HARICA-TLS-Root-2021-RSA.crl
subjectKeyIdentifier
86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----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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