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

umis.co.uk · 217.65.164.72:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `umis.co.uk'

Certificate verification failed

Subject
CN=*.web12.clearhost.co.uk
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-05T12:34:24+00:00
Expires
2027-01-03T12:34:23+00:00
Days remaining
48
Serial (hex)
05C5D226826A84D15AF352ACBB3F59218F6C
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.web12.clearhost.co.uk, DNS:web12.clearhost.co.uk

SHA-256 fingerprint

72:66:A3:BD:4A:60:E6:1E:A0:66:6F:39:C5:50:72:0D:AA:E0:10:E7:69:08:45:22:58:B6:9E:E1:83:35:31:10
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
53:B7:6D:18:30:42:93:A9:34:B1:3F:D8:FE:C8:DF:E5:CB:FD:D1:FD
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:*.web12.clearhost.co.uk, DNS:web12.clearhost.co.uk
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/109.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Oct 5 13:32:54.867 2026 GMT Extensions: 00:00:05:00:07:B3:6C:DB Signature : ecdsa-with-SHA256 30:46:02:21:00:EB:16:AD:98:89:0E:92:48:C3:98:3F: 56:41:34:2B:72:F2:8B:5D:95:67:61:32:93:8B:86:6E: FD:51:7B:6F:61:02:21:00:80:3E:67:67:45:92:F6:AB: 63:5A:8F:08:20:54:7A:D5:51:09:6E:EC:3C:D6:AD:17: 38:79:BB:28:ED:EF:8B:E2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Oct 5 13:32:54.767 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:73:9D:1D:35:7F:DB:A5:E2:72:C7:5B:9C: 96:03:58:37:9F:95:0F:F0:D4:86:EA:A9:B4:30:0D:65: 51:2C:85:CB:02:21:00:CA:DB:0F:F4:C3:2F:5F:CE:2E: 2B:C9:17:73:65:25:F1:ED:AC:EA:C6:CB:EF:B6:95:34: 5A:D0:0F:A7:D3:14:03
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-11-15T20:54:18+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
657
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
2118
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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