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

fccn.pt · 193.137.196.247:443

Verified

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

Subject
C=PT ST=Lisboa L=Lisboa O=Fundação para a Ciência e a Tecnologia I.P CN=fccn.pt
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Valid from
2026-08-16T19:23:31+00:00
Expires
2027-03-03T19:23:30+00:00
Days remaining
155
Serial (hex)
4F3C8FF7A5B3D62C1082F5A00E6FB50C
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:fccn.pt, DNS:webdv.fccn.pt, DNS:www.fccn.pt

SHA-256 fingerprint

58:C5:23:5F:00:8A:46:96:46:9F:5D:92:E7:47:75:2A:A9:03:1A:37:BF:AE:E5:09:F2:D9:76:E3:6B:DC:9F:B6
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-GEANT-TLS-E1.cer
subjectAltName
DNS:fccn.pt, DNS:webdv.fccn.pt, DNS:www.fccn.pt
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-E1.crl
subjectKeyIdentifier
8C:33:4D:9D:D2:3D:F1:39:0C:03:67:D3:3C:15:2D:B1:B7:54:A1:BF
keyUsage
Digital Signature
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 : Aug 16 19:33:33.491 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0E:83:83:46:1A:D3:4F:5C:47:DF:73:1D: 54:1C:28:BB:04:F7:EA:B3:F0:1D:EA:60:F2:49:11:81: E4:78:F7:C1:02:20:46:51:AC:11:93:4A:79:EC:E1:97: 1E:A4:BF:D5:CB:D6:A2:1B:DD:9B:8D:65:CF:4E:55:FF: 2A:36:6A:F2:C5:A5 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 : Aug 16 19:33:33.447 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:18:25:E4:44:11:0F:DA:6D:E1:0C:BE:0A: 13:81:C9:93:F0:0A:90:1A:90:81:02:87:A2:90:20:D7: AF:FB:62:92:02:20:72:E0:FF:82:BA:6B:29:91:E4:64: C1:0C:35:CF:92:47:57:B6:E2:E5:E0:30:C4:92:E2:DC: 95:2B:90:4B:78:53 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 : Aug 16 19:33:33.536 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:83:EA:EB:F0:14:A2:33:8E:64:A4:C5: D6:3B:C3:EB:3A:54:DB:89:8C:C9:8E:69:23:12:E4:D9: EC:9B:12:C0:46:02:20:35:3A:F1:8D:4E:1F:F6:3A:0C: C3:6B:F5:88:FE:58:2F:B2:74:EB:BB:CC:5B:5B:17:E9: 70:A0:C8:04:82:6F:32
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-29T03:12:38+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Valid from
2025-01-03T11:14:21+00:00
Expires
2039-12-31T11:14:20+00:00
Days remaining
4841
Serial (hex)
42FDDCE1261607E1A5E6935A400161DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

6C:DF:0B:A1:71:1E:85:6D:22:8B:A0:0C:A0:4C:5C:1C:3D:79:94:4C:03:7B:71:3B:15:5A:4E:E4:B4:7E:C5:3C
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA
authorityInfoAccess
CA Issuers - URI:http://crt.harica.gr/HARICA-TLS-Root-2021-ECC.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-ECC.crl
subjectKeyIdentifier
E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----BEGIN CERTIFICATE-----
MIIDNzCCArygAwIBAgIQQv3c4SYWB+Gl5pNaQAFh3TAKBggqhkjOPQQDAzBsMQsw
CQYDVQQGEwJHUjE3MDUGA1UECgwuSGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJlc2Vh
cmNoIEluc3RpdHV0aW9ucyBDQTEkMCIGA1UEAwwbSEFSSUNBIFRMUyBFQ0MgUm9v
dCBDQSAyMDIxMB4XDTI1MDEwMzExMTQyMVoXDTM5MTIzMTExMTQyMFowYDELMAkG
A1UEBhMCR1IxNzA1BgNVBAoMLkhlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJj
aCBJbnN0aXR1dGlvbnMgQ0ExGDAWBgNVBAMMD0dFQU5UIFRMUyBFQ0MgMTB2MBAG
ByqGSM49AgEGBSuBBAAiA2IABANPWLwh0Za2UqtbLV7/qNRm78zsttgSuvhn73bU
GtxETsVOEZeMUfMjgHw8EwrsSJI9oj0CgZQFFSEY1NJfcxA/NJiOYJUKPsFbpOrY
dr0q4g+aBZsXWeh7bMCzx24g/aOCAS0wggEpMBIGA1UdEwEB/wQIMAYBAf8CAQAw
HwYDVR0jBBgwFoAUyRtTgRL+BNUW0aq8mm+3oJUZbsowTQYIKwYBBQUHAQEEQTA/
MD0GCCsGAQUFBzAChjFodHRwOi8vY3J0LmhhcmljYS5nci9IQVJJQ0EtVExTLVJv
b3QtMjAyMS1FQ0MuY2VyMBEGA1UdIAQKMAgwBgYEVR0gADAdBgNVHSUEFjAUBggr
BgEFBQcDAgYIKwYBBQUHAwEwQgYDVR0fBDswOTA3oDWgM4YxaHR0cDovL2NybC5o
YXJpY2EuZ3IvSEFSSUNBLVRMUy1Sb290LTIwMjEtRUNDLmNybDAdBgNVHQ4EFgQU
6ZkGjRcfq/uWGlrIW15dXuzanI8wDgYDVR0PAQH/BAQDAgGGMAoGCCqGSM49BAMD
A2kAMGYCMQD2M1caaY2OwmthgmANUQg3LBLI0/2LiCdxa2zNq0G59wVzbjEk0cR/
px52OegIwRACMQCk+iTmBlR6Xfv6igiiaFiPYfN2HfbcYLWbot5DZ2H1b4JVJV+V
rga7uu50SDG9hf4=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS ECC Root CA 2021
Issuer
C=GR L=Athens O=Hellenic Academic and Research Institutions Cert. Authority CN=Hellenic Academic and Research Institutions ECC RootCA 2015
Valid from
2021-09-02T07:44:37+00:00
Expires
2029-08-31T07:44:36+00:00
Days remaining
1067
Serial (hex)
716027C8857A73542DEF516C1C2EEB0F
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

50:E2:7F:90:EB:6A:F4:95:B0:E6:EE:B6:55:CC:89:44:4C:27:D3:C9:5B:68:23:FA:02:AB:DC:95:F1:63:6A:E1
Certificate extensions & PEM
basicConstraints
CA:TRUE
authorityKeyIdentifier
B4:22:0B:82:99:24:01:0E:9C:BB:E4:0E:FD:BF:FB:97:20:93:99:2A
authorityInfoAccess
CA Issuers - URI:http://repo.harica.gr/certs/HaricaECCRootCA2015.crt
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HaricaECCRootCA2015.crl
subjectKeyIdentifier
C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA
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

Registration / WHOIS →DNS records →