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

he.com · 65.49.79.254:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=he.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-08-17T10:51:33+00:00
Expires
2026-11-15T10:51:32+00:00
Days remaining
36
Serial (hex)
06948C3C922D7AF5F7FDAACFE567BF9FDB76
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:he.com, DNS:www.he.com

SHA-256 fingerprint

11:6A:2B:69:1B:96:79:68:BA:EA:D3:3F:98:4C:20:16:67:C1:F4:49:0E:9E:46:7B:17:BD:BE:93:0F:21:A8:9D
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
6E:36:27:51:36:1F:F6:26:29:94:FC:29:10:D9:6B:16:65:17:DC:70
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:he.com, DNS:www.he.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/119.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0: D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F Timestamp : Aug 17 11:50:03.552 2026 GMT Extensions: 00:00:05:00:14:E4:92:70 Signature : ecdsa-with-SHA256 30:45:02:21:00:90:7B:1C:E3:D5:F0:DA:67:59:7F:BB: 72:55:DA:59:96:4D:8A:FD:5C:D5:C5:CB:24:D5:A5:81: 31:7A:9F:8F:3A:02:20:4B:7F:83:1A:37:65:25:2A:20: B2:D5:52:6A:F9:60:8B:E8:38:5B:E4:4A:AB:F2:46:0D: B6:93:B9:39:DF:09:A1 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Aug 17 11:50:03.557 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FF:CC:6C:03:39:3D:CD:A6:7F:E5:10: B3:B5:98:E7:FD:61:8E:C4:08:D1:92:DD:9D:27:36:57: AA:4C:F4:63:43:02:21:00:B1:16:23:93:8B:48:3B:64: CB:16:5C:10:73:F6:50:0C:D1:B3:85:F7:EB:78:7A:CB: 8E:CD:E8:DB:53:2B:7B:10
-----BEGIN CERTIFICATE-----
MIIF9DCCBNygAwIBAgISBpSMPJItevX3/arP5We/n9t2MA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
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1egyZZn+kLfTcr3allRpyOY99BABG6weYQIDAQABo4ICIjCCAh4wDgYDVR0PAQH/
BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwHQYDVR0O
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/WGOxAjRkt2dJzZXqkz0Y0MCIQCxFiOTi0g7ZMsWXBBz9lAM0bOF9+t4esuOzejb
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8rz3YUmAwAmhIEQs3zUxHpf/bS2Q1jItEMtuISrrO4XsFSzqJPnDc2i+MztnV258
4xQLGGSQZvfZexv2ZRvM6Q/0N3jrXEFJt7aX8k5vvd5IHfwiZIS63AQAraURs+sG
xxxGSkzEr5vIMxmnbFeGQNtfQ/GzHODWR1V+kV35cNFZ2kxDgAJb4A==
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-09T19:14:58+00:00

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

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