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

my.lu · 158.64.1.65:443

Verified

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

Subject
C=LU L=Esch-sur-Alzette O=Fondation Restena CN=www.my.lu
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS RSA 1
Valid from
2026-07-22T12:35:14+00:00
Expires
2027-02-06T12:35:13+00:00
Days remaining
136
Serial (hex)
6AF6109BAE1DC3A7526AA143E389DA32
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.my.lu, DNS:my.lu, DNS:auth.my.lu, DNS:www.domain-registration.lu, DNS:domain-registration.lu

SHA-256 fingerprint

99:97:72:6D:A8:2D:89:64:4B:94:BF:80:4B:2C:A6:E1:D1:DB:F4:7A:3F:20:5D:0E:28:9B:3F:3D:B0:99:8E:6F
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.my.lu, DNS:my.lu, DNS:auth.my.lu, DNS:www.domain-registration.lu, DNS:domain-registration.lu
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
45:F5:26:94:42:F8:58:95:33:27:55:BF:81:8A:B4:C7:54:BC:2D:41
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 22 12:45:15.751 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B2:F4:8B:C8:CA:52:04:94:C0:C6:01: DA:95:2B:82:1E:A3:F5:FC:09:05:1A:9F:4E:E2:DB:88: DB:07:F8:DE:F2:02:20:74:41:B0:8E:0D:D7:48:A8:AA: 27:F0:B7:A5:C1:EF:1E:D5:CF:36:1F:E0:2F:07:87:F4: EB:30:B2:18:C7:F2:8E 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 22 12:45:15.778 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:69:BA:EE:93:92:F4:F4:93:4A:7C:B9:DD: 49:5E:BE:66:81:1C:FD:A2:B8:50:18:04:3D:4D:E3:D2: 40:E2:6E:58:02:21:00:D0:04:9F:72:59:3A:F9:D3:F0: C3:86:24:C3:A1:01:D1:18:81:94:8D:89:77:4F:8A:DC: E4:92:44:1B:59:4A:30 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 22 12:45:15.725 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AF:74:06:E6:1F:6F:EE:40:AF:AC:3E: 86:4D:10:E0:18:A6:44:F7:83:BD:1F:2A:AB:22:90:93: 07:56:C2:D5:30:02:21:00:E6:A7:36:1A:B8:C4:4C:6D: E3:C4:01:AE:9F:88:B7:70:23:5C:8C:17:CA:43:1F:C2: 9E:73:DD:F9:36:34:37:EF
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T06:41:39+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
4847
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
1073
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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