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

hifi.sy · 185.23.76.28:443

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=hifi.sy
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-21T02:05:48+00:00
Expires
2027-01-19T02:05:47+00:00
Days remaining
73
Serial (hex)
06A60544034332F760DCBEFB766821010D06
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:hifi.sy

SHA-256 fingerprint

34:18:C0:DE:88:00:08:92:61:E2:1B:D9:83:54:57:6A:3C:18:E4:E9:C5:BE:57:B0:17:B9:79:AD:A5:C8:75:9A
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
2C:92:E6:C7:C0:44:1E:20:60:C1:A7:3E:07:2F:E4:80:5F:DD:DD:0B
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:hifi.sy
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/7.crl
ct_precert_scts
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 : Oct 21 03:04:18.752 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:8D:05:14:00:A6:E5:99:BD:CA:44:B9: 18:1B:11:79:6B:DE:76:0B:17:6A:BB:C3:5D:E1:DE:07: F0:82:77:98:BB:02:20:75:19:2E:31:A0:C3:89:F0:34: D9:BD:98:BA:B3:65:E6:FF:3B:B7:F8:62:4D:2E:D1:9E: 2D:4B:71:43:64:86:2C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA: 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D Timestamp : Oct 21 03:04:19.087 2026 GMT Extensions: 00:00:05:00:29:B5:0C:9E Signature : ecdsa-with-SHA256 30:45:02:20:70:ED:5D:60:19:49:0F:D0:CA:0D:59:C3: DC:21:15:60:3F:40:E6:02:1E:C9:18:7F:11:F4:86:F7: 2A:46:2C:6E:02:21:00:81:94:E7:9E:BC:F8:9E:2F:13: C7:19:F2:36:A2:C6:66:33:D5:D5:4C:21:0A:D8:4C:CE: D5:D3:DD:2D:41:30:B1
-----BEGIN CERTIFICATE-----
MIIE5zCCA8+gAwIBAgISBqYFRANDMvdg3L77dmghAQ0GMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNZUjEwHhcNMjYxMDIxMDIwNTQ4WhcNMjcwMTE5MDIwNTQ3WjASMRAwDgYDVQQD
EwdoaWZpLnN5MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1VyXZ5Gi
G0BszBtkRE3fC6G1VZ18v1mP+i6xx8loCecBJ3opT4QOWWwnkyPjb6kt2H01/jKG
q0aml9sEL2U3QIBPal2eS49H/08x8/eZGPxlN+KmBBsmcLSILr5DSyCwr7vK/XZI
ySf0giqB0k4scLz3BxleDSzw/waSmElLGw4esSYKNNrlo6EcmiXX62YiHNZ8RHuL
C69iRF0k9ITFKO4wQQgmPoeHUnPowVQhi1wsiCgqUaVuWbXN2aIQSL0HK7wciHpn
iJrf2kObbYyZSRkEmkxovynmwvBPbXkv5bJl6cLgebLS8durM9YVKximdMs53zqA
NrdIuMxpRt3M0wIDAQABo4ICFDCCAhAwDgYDVR0PAQH/BAQDAgWgMBMGA1UdJQQM
MAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFCyS5sfARB4gYMGn
Pgcv5IBf3d0LMB8GA1UdIwQYMBaAFB8vNb5GFILNQLGueSxVePr31Gj7MDMGCCsG
AQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0cDovL3lyMS5pLmxlbmNyLm9yZy8w
EgYDVR0RBAswCYIHaGlmaS5zeTATBgNVHSAEDDAKMAgGBmeBDAECATAtBgNVHR8E
JjAkMCKgIKAehhxodHRwOi8veXIxLmMubGVuY3Iub3JnLzcuY3JsMIIBDAYKKwYB
BAHWeQIEAgSB/QSB+gD4AHYARqI5Z8YNtkaHxm89+ZmUdpOmphEghFfVVefj0KHZ
tkYAAAGhXGqyQAAABAMARzBFAiEAjQUUAKblmb3KRLkYGxF5a952Cxdqu8Nd4d4H
8IJ3mLsCIHUZLjGgw4nwNNm9mLqzZeb/O7f4Yk0u0Z4tS3FDZIYsAH4AooEAGHNO
F24dR+CVQPOBulRml81jqENQcW64CU7a8Q0AAAGhXGqzjwAIAAAFACm1DJ4EAwBH
MEUCIHDtXWAZSQ/Qyg1Zw9whFWA/QOYCHskYfxH0hvcqRixuAiEAgZTnnrz4ni8T
xxnyNqLGZjPV1UwhCthMztXT3S1BMLEwDQYJKoZIhvcNAQELBQADggEBAFELwlXm
zJBDqLqAzTqiBweVMV/lHTtwU+YZakBKJCVjAuEdk4YtGxtcqXcKHpL6wC5/tSvK
mEkzt8uHGNuKbbvRwbmJzSGVEnGyKKN9X6xjkncccS4XglEmq3hDqJ/2NybjaFiB
pDio50Eg5t26IZkUB2KQX1j7GRdaRPZwMVeuYYz0KCHxSIchqtqpZ/Nb5+Dg6GQN
hFj160HYse5IxrsvjDfQaft8+7KQuYrMikznmpWUz7dmGfN0vcPKc13FW+vTbk+5
ToSUaewKvaO+By5QLj7kCdANv68SM0OzMp20nofRHCpiDpnBnF7SMw4bQ3L0/2/v
6e0n3mjzgb3gHWY=
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-06T23:17:53+00:00

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

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