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

TLSv1.2

ulisboa.pt · 194.117.3.27:443

Verified

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

Subject
C=PT L=Lisboa O=Universidade de Lisboa CN=ulisboa.pt
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-23T10:02:00+00:00
Expires
2027-02-07T10:01:59+00:00
Days remaining
130
Serial (hex)
42193DAC75387C293C11425E30F8728D
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:ulisboa.pt, DNS:*.ulisboa.pt

SHA-256 fingerprint

09:1C:B7:2D:EC:19:D8:0C:F7:3A:6C:74:65:74:9A:EB:74:A7:02:A2:AC:57:99:A4:EB:5B:CE:25:08:70:03:6B
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:ulisboa.pt, DNS:*.ulisboa.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
B7:5F:07:3C:81:28:40:94:8C:7F:56:66:D3:E8:4B:72:48:2E:9E:81
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 23 10:12:01.792 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:18:19:16:A3:F4:BA:67:7B:1E:D3:A6:EF: 4F:F0:90:C5:F5:51:6E:86:47:DE:1F:B1:2B:E4:29:16: D7:4E:FB:C5:02:21:00:D3:AE:0D:E9:00:18:54:08:36: 32:CC:0B:98:4D:A8:73:04:7D:36:EA:4E:85:E1:C3:87: C7:1E:9C:6A:BA:16:30 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 23 10:12:01.830 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:5C:D8:13:E7:07:49:8B:A8:85:C4:5B:56: CD:F6:61:40:08:2E:BD:18:09:F0:0B:E4:6D:8D:6F:0E: FA:A5:1E:F6:02:21:00:96:35:1C:16:CF:B2:02:95:86: ED:94:07:A2:C9:BF:81:50:61:14:BE:F9:BC:78:1F:2C: B0:A9:AE:FC:F6:56:42 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 23 10:12:01.780 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A3:02:0A:DA:C5:D1:9D:5D:A7:A7:CF: 4E:15:E3:06:C8:B2:1C:84:2B:3D:72:7E:D4:C6:60:22: 22:44:0B:7D:82:02:21:00:94:09:5B:4C:39:03:74:98: 05:74:E5:C2:47:29:C6:10:A0:E9:27:33:C2:80:3D:7E: 44:54:9E:0D:31:45:E3:42
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-09-29T21:03:38+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS 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
4840
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
1066
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-----
MIIGwDCCBKigAwIBAgIQKmCG1NTeRcleS5j7vy+/JjANBgkqhkiG9w0BAQsFADCB
pjELMAkGA1UEBhMCR1IxDzANBgNVBAcTBkF0aGVuczFEMEIGA1UEChM7SGVsbGVu
aWMgQWNhZGVtaWMgYW5kIFJlc2VhcmNoIEluc3RpdHV0aW9ucyBDZXJ0LiBBdXRo
b3JpdHkxQDA+BgNVBAMTN0hlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJ
bnN0aXR1dGlvbnMgUm9vdENBIDIwMTUwHhcNMjEwOTAyMDc0MTU1WhcNMjkwODMx
MDc0MTU0WjBsMQswCQYDVQQGEwJHUjE3MDUGA1UECgwuSGVsbGVuaWMgQWNhZGVt
aWMgYW5kIFJlc2VhcmNoIEluc3RpdHV0aW9ucyBDQTEkMCIGA1UEAwwbSEFSSUNB
IFRMUyBSU0EgUm9vdCBDQSAyMDIxMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIIC
CgKCAgEAi8Lnr2WbBWeWyQ0kudAOZPzO4iQYLIR/d1HLBBE2uF7taXGnnuQlCZdn
wUfCz5EWNmI9OAThUYL/rNK0ad0u7BGjRe5raztMv4yNpB6dEbnpOPl6DgyY4iMd
0U5j1Oe4QUT7a69r2h/TxZGIW6SJktGB5ow5WKDWaUOprZhSWG7bCvtrz2j646Re
OkVzmAfqXwJy3gyls5+uqR23HbP8ilnnbnJlrfUwlCMH84IWSzWYnFO7L8rkWtnH
jR38mJn7LKSCa/AqH44LX3FcXK5CeymJgcsDo5nKiJ4LQAlBM9vmWHr9rplwwFoP
1hOGcS92afyQ3dstbtHym/Uaa55vFYx68EsooCI4gCRsNqQ78jCR83gTz8E/Navx
HREjtUMingGStxgC5RHRgtsVAMxhN8EqfJrh0LqzUEbugqydMfj7I+IDAEhwowkm
eRVTYPM4XK046oEAYxS5M17dC9ugRQcaMwn4TbSnAqZp9MJZBYhlhVauS8vg3jx9
LRrI6fsfo2FK1ioTrXdMGhibkQ9Y2AZUxZf4qj8giqaFpnf2pvwc4u5ulDMqg1CE
CuVPhvhQRXgAgetbaOMmjcx7XFH0FCxAvhpgHXpyYR0fYy2Iqs6iRZAI/Gu+s1Aq
Wv2oSBhG1pBAkpAKhF5oMfjr7Q3THcZ9mRhVVidlLo1FxSTszuMCAwEAAaOCASEw
ggEdMA8GA1UdEwEB/wQFMAMBAf8wHwYDVR0jBBgwFoAUcRVnyMjJvXVdctA4GGqd
83EkVAswTAYIKwYBBQUHAQEEQDA+MDwGCCsGAQUFBzAChjBodHRwOi8vcmVwby5o
YXJpY2EuZ3IvY2VydHMvSGFyaWNhUm9vdENBMjAxNS5jcnQwEQYDVR0gBAowCDAG
BgRVHSAAMB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATA6BgNVHR8EMzAx
MC+gLaArhilodHRwOi8vY3JsLmhhcmljYS5nci9IYXJpY2FSb290Q0EyMDE1LmNy
bDAdBgNVHQ4EFgQUCkgjpmCkkgoz6pNbxVfqJU29Eu4wDgYDVR0PAQH/BAQDAgGG
MA0GCSqGSIb3DQEBCwUAA4ICAQDAze/rVni3cYGP1BWkxXnIVynqHcC6Cw7kbkXo
XBZAqF9ANQAKoz2YQ+WyzrparKVilMG6p6mdWTKeLy6eQDRhFSu9DrMYr4TBYxIp
2e5ZLQBk96xbG3wSepBCkTDA0MA0NybzM0gF5nTa82BMCED8EQXliWWsgqUorXuk
7msadosX793M42llmAcj1zJkADzlyzi4gcPvIc4skfmz1OW9jxxwyaR/41VYzPVy
w7m0rsL9n3v5PCFJ1zrldYayKq9gOdwOZInNJQgPU6imXEFBZWdqdR+xdL7qHVMk
dzBRoFqnYjr2bonw87Rxk7dAsdzmUUPJTIayzDTdtU78XkOl0FivJWBXDQPiVB2Z
5NdOVPUANDnADA5octuC3YTG2ncpG9aNKM4ggAyr3imdnz5UZdioYkecv2TVJHT2
lXE5PH/ifJs8p9+WFgyzFsW97BUF1nKsZiUWvlyPY9C9PKuhI4OMeTEA99YIRXYj
XDSZq300ko5sXUVKVG2osAR4Sr3wqS5hLGNBfym7FZwsQ+/ja+fenEALAbAiEMpI
9h71lpMpIhdx7rdRznNeSOok/pVMaqvBZ0IvAq+yXb7d8C+tAND0IcUxYyyJqkE7
89RJdcGZO9JMXv4inBFIEuMAMlGPxzcroEx+ehDXyGR0asw7CooV2DCfiEJlIsKz
LcPZew==
-----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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