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

erasmusmc.nl · 13.69.68.43:443

Verified

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

Subject
C=NL L=Rotterdam O=Erasmus Universitair Medisch Centrum Rotterdam CN=erasmusmc.nl
Issuer
C=GR O=Hellenic Academic and Research Institutions CA CN=GEANT TLS ECC 1
Valid from
2026-07-25T16:46:59+00:00
Expires
2027-02-09T16:46:58+00:00
Days remaining
118
Serial (hex)
08888D5F83683F01A92E45A35AAE9567
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:erasmusmc.nl, DNS:cms.erasmusmc.nl, DNS:website-onderhoud.erasmusmc.nl, DNS:redactie.erasmusmc.nl, DNS:research-support-navigator.erasmusmc.nl, DNS:website-storing.erasmusmc.nl, DNS:www.erasmusmc.nl, DNS:verwijzers.erasmusmc.nl, DNS:cds.erasmusmc.nl, DNS:patientenfolders.erasmusmc.nl

SHA-256 fingerprint

25:5E:FB:60:54:B1:4F:8D:C3:F4:A4:A7:AB:C1:50:20:BE:F2:30:4F:59:92:6B:44:69:2C:85:E7:7E:CB:B1:28
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:erasmusmc.nl, DNS:cms.erasmusmc.nl, DNS:website-onderhoud.erasmusmc.nl, DNS:redactie.erasmusmc.nl, DNS:research-support-navigator.erasmusmc.nl, DNS:website-storing.erasmusmc.nl, DNS:www.erasmusmc.nl, DNS:verwijzers.erasmusmc.nl, DNS:cds.erasmusmc.nl, DNS:patientenfolders.erasmusmc.nl
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
47:59:0E:B9:E3:DA:BF:81:A3:25:09:30:D1:8B:5C:BA:B3:D7:0C:EF
keyUsage
Digital Signature
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 25 16:57:01.067 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:01:62:72:00:95:7F:58:17:91:1C:1A:F6: C7:B7:6B:3C:03:E1:BC:00:73:A8:E2:9C:4A:86:F4:55: 78:5C:1B:E6:02:20:3A:2B:0A:B1:47:B7:1E:FE:39:08: 94:87:7A:B7:96:BE:4E:F1:CE:A5:F2:B8:D3:E4:59:E1: 75:B3:BA:D2:85:36 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 25 16:57:01.105 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:82:A3:3C:BC:EA:B2:B9:4F:F9:F4:F4: 52:B0:A8:B5:65:07:36:BF:D6:0C:8F:97:11:08:2D:47: CC:9C:39:55:E6:02:20:15:EB:09:66:F4:FC:83:44:FF: 1B:C2:76:17:9B:63:90:57:42:B1:82:6A:2E:94:54:ED: 88:99:32:4B:EC:F9:4D 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 25 16:57:01.053 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F4:4E:DD:4E:4D:78:45:46:36:07:E7: 9A:67:26:A3:77:9F:D4:53:69:3B:BF:B4:1E:BC:4E:5E: E6:3F:90:DE:1C:02:21:00:9E:66:3C:8C:FA:98:E9:CD: 8C:A9:71:DD:B1:26:39:3C:CD:87:86:41:D4:22:3F:FC: 58:4C:73:E0:19:1D:B5:17
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-14T11:46:36+00:00

Server-presented chain · 1 additional certificate

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
4825
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-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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