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

exn.uk · 46.30.8.8:443

Verified

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

Subject
CN=staging01.exn.uk
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-26T03:32:34+00:00
Expires
2026-12-25T03:32:33+00:00
Days remaining
84
Serial (hex)
05110CD7946EF5F32EAB26D0F22E104956E6
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:as35266.net, DNS:blog.exn.uk, DNS:cc.exn.uk, DNS:exn.uk, DNS:geofeed.exn.uk, DNS:holidays.exn.uk, DNS:mail.as35266.net, DNS:mail.exn.uk, DNS:pbx.exn.uk, DNS:projects.exn.uk, DNS:reviews.exn.uk, DNS:staging01.exn.uk, DNS:www.exn.uk

SHA-256 fingerprint

DD:D8:65:A3:1E:4E:A3:73:BC:4E:3B:A7:67:1E:F6:F9:40:2C:7A:5C:B1:FA:24:49:43:E2:B4:DE:E4:DD:93:2F
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
C1:D2:BF:7E:36:40:32:5A:41:CA:75:0A:87:FF:8C:D9:08:8C:84:21
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:as35266.net, DNS:blog.exn.uk, DNS:cc.exn.uk, DNS:exn.uk, DNS:geofeed.exn.uk, DNS:holidays.exn.uk, DNS:mail.as35266.net, DNS:mail.exn.uk, DNS:pbx.exn.uk, DNS:projects.exn.uk, DNS:reviews.exn.uk, DNS:staging01.exn.uk, DNS:www.exn.uk
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/103.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Sep 26 04:31:04.783 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:3F:82:2E:EC:35:80:4B:7F:FE:86:DF:55: 13:E5:1E:F2:38:9E:7C:B3:9D:CE:55:F7:42:D7:8F:2A: 59:62:07:8D:02:20:23:62:F5:FD:60:B5:4F:28:AB:3E: ED:CF:97:5E:77:32:B4:A1:12:2C:89:4A:05:0A:DB:3F: BA:98:80:FF:98:69 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 26 04:31:05.364 2026 GMT Extensions: 00:00:05:00:45:4B:74:01 Signature : ecdsa-with-SHA256 30:46:02:21:00:DC:03:FB:FC:E7:79:71:CC:84:52:B9: A6:8C:D2:72:31:0D:77:DF:DA:06:44:21:F2:9C:2D:01: 87:77:01:5B:5A:02:21:00:8D:A2:E2:07:15:E8:35:D4: AE:52:1C:7D:B1:3E:EC:14:52:04:CB:D6:D7:67:6F:8F: 76:AE:01:54:DE:05:E8:75
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-01T18:12:10+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
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
702
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
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
2163
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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