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

ns1.dns-redirect.com · 5.161.47.86:443

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
C=US ST=California L=San Francisco O=Your Company OU=IT Department CN=self-sign.com
Issuer
C=US ST=California L=San Francisco O=Your Company OU=IT Department CN=self-sign.com
Valid from
2026-10-03T18:50:53+00:00
Expires
2036-09-30T18:50:53+00:00
Days remaining
3643
Serial (hex)
2C73AF7D75256F83A994CC9ABC735C98DA640E50
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

8E:1F:E8:B7:13:AF:5E:DA:21:80:02:4B:8F:F1:05:1F:82:9F:AE:A7:75:98:19:BF:EA:E4:07:9D:D3:F5:17:5A
Certificate extensions & PEM
subjectKeyIdentifier
45:86:1F:DC:1F:DF:16:B6:A0:83:1A:34:54:C4:A7:84:71:CF:94:D8
authorityKeyIdentifier
45:86:1F:DC:1F:DF:16:B6:A0:83:1A:34:54:C4:A7:84:71:CF:94:D8
basicConstraints
CA:TRUE
-----BEGIN CERTIFICATE-----
MIID5TCCAs2gAwIBAgIULHOvfXUlb4OplMyavHNcmNpkDlAwDQYJKoZIhvcNAQEL
BQAwgYExCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRYwFAYDVQQH
DA1TYW4gRnJhbmNpc2NvMRUwEwYDVQQKDAxZb3VyIENvbXBhbnkxFjAUBgNVBAsM
DUlUIERlcGFydG1lbnQxFjAUBgNVBAMMDXNlbGYtc2lnbi5jb20wHhcNMjYxMDAz
MTg1MDUzWhcNMzYwOTMwMTg1MDUzWjCBgTELMAkGA1UEBhMCVVMxEzARBgNVBAgM
CkNhbGlmb3JuaWExFjAUBgNVBAcMDVNhbiBGcmFuY2lzY28xFTATBgNVBAoMDFlv
dXIgQ29tcGFueTEWMBQGA1UECwwNSVQgRGVwYXJ0bWVudDEWMBQGA1UEAwwNc2Vs
Zi1zaWduLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAN6ccWt5
DlHoFR2m3mbddNn+q2dk7EFj3Z8Z/K7QbYViUh5JE2MvsMBQPGytyfpy7kBbnta7
tp3bz9Sp+l3s8nlsRJA8Tk9lfgW5s64Nrhk6gPr2zqGpUGI2d2NCTrZgoQLgOTMq
TAMkIw+IclPBfKOie7SL4JU1e7QV8TDvD0P8lLvrajvWh1enwFi4UgWc4lP6CNSy
8dire05zWjyyeLIkWFZZjFwK6UazYLXBSoo+AZQUOjQWSd/UqvxSVf4FejeHHnXn
dQHtEW961OTTR+41tuVCFH/lXY1aGtFMP29a2wSaRm+pu59GX0PMXJzVCuzxVbJH
V2rvRO85EpL0DbsCAwEAAaNTMFEwHQYDVR0OBBYEFEWGH9wf3xa2oIMaNFTEp4Rx
z5TYMB8GA1UdIwQYMBaAFEWGH9wf3xa2oIMaNFTEp4Rxz5TYMA8GA1UdEwEB/wQF
MAMBAf8wDQYJKoZIhvcNAQELBQADggEBAGVLZNXpJHmiVIRo+rQdpiIOc4M2q0t5
O0R8pbMnXAbUTNWpXk6b8+G4OLpa3bK2Taiu41cdSB/yKdVr/vmK8fDmnxoN1SSa
i+pep2+5FS9faarWGJ5Mx11qUpLN8PpTpPU6e32+13LGOS15NS9+aeOGdX3ZprhF
NViI6GQvZYpKt2ne+foRjw55qQUTJ+3Q5YjdN/u3EEnLTNfloMqFUNNHYPLUiqlJ
JAf8ruzA3eru2uFUiTJcrWM75FWTZ91uTQU/N5r1O4b8kwiOb1bSPVdR37a1MKfI
8xx0oG8WnuHeuApdex4u+jm+3qSwmCvQvB0a7ho/PAC2K+f3zqlHL1s=
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-10T17:04:20+00:00

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

View certificate JSON

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