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

fct.pt · 193.137.194.8:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`www.fct.pt' did not match expected CN=`fct.pt'

Certificate verification failed

Subject
C=PT ST=Lisboa L=Lisboa O=Fundação para a Ciência e a Tecnologia I.P CN=www.fct.pt
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-26T12:19:25+00:00
Expires
2027-02-10T12:19:24+00:00
Days remaining
137
Serial (hex)
1BE5D62E8C387CDD43ACA7191EA40B76
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.fct.pt

SHA-256 fingerprint

90:28:EC:B8:8D:A6:FC:F9:83:BD:CE:45:9D:1A:EF:2C:C3:15:77:1B:DE:9C:DA:2F:5D:24:78:DD:6C:41:2D:94
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.fct.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-R1.crl
subjectKeyIdentifier
5A:01:8A:BD:CB:7B:50:79:A2:08:95:14:54:0F:8A:DC:6F:86:CD:21
keyUsage
Digital Signature, Key Encipherment
ct_precert_scts
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 26 12:29:26.775 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D8:50:D5:75:24:A2:60:51:1A:18:6D: 81:8E:38:03:6E:A2:46:07:F6:8B:D0:C5:98:9F:0F:33: EC:FF:1E:A8:14:02:20:4D:98:67:E1:E4:D0:48:79:AB: DC:19:C6:D9:D7:64:44:7F:51:4D:2C:92:24:22:79:B5: C0:18:09:4E:44:CD:28 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 : Jul 26 12:29:26.770 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F9:98:AC:8B:BA:FE:2E:C6:73:33:9A: 1E:25:BB:AC:54:63:37:A2:11:9B:EE:6B:72:40:52:0F: C1:A0:CE:F6:99:02:21:00:FF:55:3F:74:9A:ED:68:3E: 4E:9D:4E:1B:EE:70:0F:FC:9E:71:5A:A9:21:4E:35:0F: FF:0D:40:9A:FA:61:6C:2B 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 26 12:29:26.720 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4D:F5:6F:C6:49:E0:FC:C1:0F:C4:50:ED: D7:5D:64:12:A6:03:EB:D7:5D:F0:58:5D:2B:09:11:5E: 71:33:61:C9:02:21:00:CA:35:03:74:66:00:B5:20:2C: 8A:CE:68:DA:86:40:F4:AD:D0:D4:0C:F2:B1:E8:38:25: ED:5B:0F:4C:C5:86:1F
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-26T07:33:55+00:00

Server-presented chain · 2 additional certificates

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
4844
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-----

Chain certificate 2

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=HARICA TLS RSA Root CA 2021
Issuer
C=GR L=Athens O=Hellenic Academic and Research Institutions Cert. Authority CN=Hellenic Academic and Research Institutions RootCA 2015
Valid from
2021-09-02T07:41:55+00:00
Expires
2029-08-31T07:41:54+00:00
Days remaining
1070
Serial (hex)
2A6086D4D4DE45C95E4B98FBBF2FBF26
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4A:CD:8D:C6:02:0A:54:5A:85:89:43:A5:53:B5:E0:F3:FC:5B:85:9A:EA:17:46:65:0D:69:CF:12:10:F9:56:D8
Certificate extensions & PEM
basicConstraints
CA:TRUE
authorityKeyIdentifier
71:15:67:C8:C8:C9:BD:75:5D:72:D0:38:18:6A:9D:F3:71:24:54:0B
authorityInfoAccess
CA Issuers - URI:http://repo.harica.gr/certs/HaricaRootCA2015.crt
certificatePolicies
Policy: X509v3 Any Policy
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.harica.gr/HaricaRootCA2015.crl
subjectKeyIdentifier
0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE
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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