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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

uzh.ch · 130.60.184.132:443

Verified

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

Subject
CN=www.uzh.ch
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-15T12:07:58+00:00
Expires
2026-12-14T12:07:57+00:00
Days remaining
82
Serial (hex)
05A166FEB70A8C7B718780009FAD459AEEDF
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:uzh.ch, DNS:www.uzh.ch, DNS:www.uzh.edu

SHA-256 fingerprint

30:90:8A:AD:72:CE:FF:26:3C:33:8A:C6:1C:68:BA:FB:DA:83:86:0B:14:3F:6F:45:A0:25:AB:81:93:F8:E9:FB
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
ED:79:5C:62:D1:AA:98:87:DE:84:B3:B9:60:47:59:34:AF:33:70:1E
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:uzh.ch, DNS:www.uzh.ch, DNS:www.uzh.edu
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/96.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Sep 15 13:06:28.699 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:43:02:20:20:10:EA:64:4C:49:C2:7F:2E:CE:42:A9: AA:F5:AF:AC:2D:4B:95:32:AB:4D:83:BD:08:7B:1E:27: 30:9D:D1:EE:02:1F:40:3C:A9:A2:7F:3C:5B:BC:6B:02: BD:5B:91:02:38:CD:7B:24:75:B1:E3:FB:BD:EA:A4:7E: 74:4B:A8:F3:43 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37: 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23 Timestamp : Sep 15 13:06:26.450 2026 GMT Extensions: 00:00:05:00:42:42:45:27 Signature : ecdsa-with-SHA256 30:44:02:20:34:86:58:D0:E6:D0:A8:A2:47:05:40:5D: B2:26:AF:C4:02:16:B0:3A:83:40:F8:2C:65:12:0C:F8: 16:46:59:9F:02:20:22:BE:D5:9E:FB:FE:EC:11:45:DC: 71:DE:DA:3B:99:0A:86:50:C0:26:09:15:64:ED:CD:D7: 6A:07:25:14:D8:B2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T06:17:13+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
710
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2171
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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