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

ecmwf.int · 54.73.72.151:443

Verified

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

Subject
C=DE ST=Nordrhein-Westfalen O=European Centre for Medium-Range Weather Forecasts CN=ecmwf.int
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Valid from
2026-11-08T15:24:34+00:00
Expires
2027-05-26T15:24:33+00:00
Days remaining
196
Serial (hex)
5C6C85FAEE4CFD6F18E933676F377FE1
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:ecmwf.int, DNS:www.ecmwf.int

SHA-256 fingerprint

34:2D:21:B6:DC:0B:D2:18:0F:86:B1:5D:59:7B:A3:7E:41:84:D0:F9:77:D2:52:90:BF:C2:7D:52:ED:BD:70:B1
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:ecmwf.int, DNS:www.ecmwf.int
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
88:9C:C7:C3:ED:B4:5F:CA:93:52:97:1B:92:0D:D7:F6:E4:89:6A:10
keyUsage
Digital Signature
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 : Nov 8 15:34:36.941 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6D:F2:D7:76:15:49:F3:F3:0A:1E:7D:BA: D7:A4:24:28:09:ED:50:7A:D2:1D:41:5B:A9:0E:55:15: C0:FC:26:04:02:20:7F:92:39:08:C3:19:A0:0B:DB:F5: 64:7A:A7:AC:9B:4E:3E:4A:C5:0D:65:81:A5:ED:32:6A: B5:01:77:1A:91:A4 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 : Nov 8 15:34:36.974 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:D0:F7:41:F8:DD:00:0E:3F:79:AE:EF: 93:DA:B4:B6:5B:77:66:1F:8C:13:5B:6D:54:D2:FD:0A: A9:65:63:C2:0C:02:21:00:BC:09:F0:6C:C0:7D:A7:16: 84:EC:23:11:FD:D6:29:3A:1B:09:66:D4:06:68:97:97: C8:31:D8:9E:0B:00:7F:D3 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Nov 8 15:34:36.966 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:1A:77:48:68:E0:D3:7E:59:48:88:2C:7B: 67:0F:7A:58:6F:BA:F9:08:F9:C8:10:13:C1:C0:17:31: FE:D3:1A:5B:02:21:00:D3:FD:24:63:08:D2:3D:7D:6E: 39:BF:32:23:A3:18:85:80:89:7E:54:B3:9E:8A:3B:B8: F9:A5:DB:DC:66:89:72
-----BEGIN CERTIFICATE-----
MIIE2zCCBGKgAwIBAgIQXGyF+u5M/W8Y6TNnbzd/4TAKBggqhkjOPQQDAzBgMQsw
CQYDVQQGEwJHUjE3MDUGA1UECgwuSGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJlc2Vh
cmNoIEluc3RpdHV0aW9ucyBDQTEYMBYGA1UEAwwPR0VBTlQgVExTIEVDQyAxMB4X
DTI2MTEwODE1MjQzNFoXDTI3MDUyNjE1MjQzM1owfDELMAkGA1UEBhMCREUxHDAa
BgNVBAgME05vcmRyaGVpbi1XZXN0ZmFsZW4xOzA5BgNVBAoMMkV1cm9wZWFuIENl
bnRyZSBmb3IgTWVkaXVtLVJhbmdlIFdlYXRoZXIgRm9yZWNhc3RzMRIwEAYDVQQD
DAllY213Zi5pbnQwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARTbbAcVnCpquD2
khYhhFI8YzbFISYeZIwIy5cBpQffPe7tauAwwKB/xzPTpelHzU54FR9POlLzR0Pj
agLk7szuo4IC4DCCAtwwDAYDVR0TAQH/BAIwADAfBgNVHSMEGDAWgBTpmQaNFx+r
+5YaWshbXl1e7NqcjzBIBggrBgEFBQcBAQQ8MDowOAYIKwYBBQUHMAKGLGh0dHA6
Ly9jcnQuaGFyaWNhLmdyL0hBUklDQS1HRUFOVC1UTFMtRTEuY2VyMCMGA1UdEQQc
MBqCCWVjbXdmLmludIINd3d3LmVjbXdmLmludDAtBgNVHSAEJjAkMAgGBmeBDAEC
AjAIBgYEAI96AQcwDgYMKwYBBAGBzxEBAQECMB0GA1UdJQQWMBQGCCsGAQUFBwMC
BggrBgEFBQcDATA9BgNVHR8ENjA0MDKgMKAuhixodHRwOi8vY3JsLmhhcmljYS5n
ci9IQVJJQ0EtR0VBTlQtVExTLUUxLmNybDAdBgNVHQ4EFgQUiJzHw+20X8qTUpcb
kg3X9uSJahAwDgYDVR0PAQH/BAQDAgeAMIIBfgYKKwYBBAHWeQIEAgSCAW4EggFq
AWgAdQBGojlnxg22RofGbz35mZR2k6amESCEV9VV5+PQodm2RgAAAaG7zBaNAAAE
AwBGMEQCIG3y13YVSfPzCh59utekJCgJ7VB60h1BW6kOVRXA/CYEAiB/kjkIwxmg
C9v1ZHqnrJtOPkrFDWWBpe0yarUBdxqRpAB3AExj3JjlnB2riPYeij3ero+rRKM3
e1+blMP7oZz8wb4mAAABobvMFq4AAAQDAEgwRgIhAND3QfjdAA4/ea7vk9q0tlt3
Zh+ME1ttVNL9CqllY8IMAiEAvAnwbMB9pxaE7CMR/dYpOhsJZtQGaJeXyDHYngsA
f9MAdgAAGl0aHC2TdbZIVXj4L3Ghrm7vOX0pfIrjFXvK3uGgHgAAAaG7zBamAAAE
AwBHMEUCIBp3SGjg035ZSIgse2cPelhvuvkI+cgQE8HAFzH+0xpbAiEA0/0kYwjS
PX1uOb8yI6MYhYCJflSznoo7uPml29xmiXIwCgYIKoZIzj0EAwMDZwAwZAIwJZUY
FiUU53Jtecpskh0WIO1ZG55n7c1qHv3A+uxHueBiVuugSSU0y5hoRreOrkriAjBv
CB8oQ8JDmIYMfC/Ezm2UDPqzC9qMsQZJUi+h5QEQa1RoVLajjg1cye7OFZb+Tu4=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-10T16:10:06+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
4798
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-----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-----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
1024
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

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