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

ns2.birdns.com · 195.201.26.171:443

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=birdns.softether.net O=birdns.softether.net OU=birdns.softether.net C=US
Issuer
CN=birdns.softether.net O=birdns.softether.net OU=birdns.softether.net C=US
Valid from
2018-02-23T22:49:34+00:00
Expires
2037-12-31T22:49:34+00:00
Days remaining
4107
Serial (hex)
0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A1:B0:50:E1:BA:1A:05:07:85:6F:36:76:5B:59:48:98:21:49:74:72:A3:61:D7:42:8C:CC:15:CB:AC:80:EA:0D
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Non Repudiation, Key Encipherment, Data Encipherment, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication, Code Signing, E-mail Protection, IPSec End System, IPSec Tunnel, IPSec User, Time Stamping, OCSP Signing
-----BEGIN CERTIFICATE-----
MIID1jCCAr6gAwIBAgIBADANBgkqhkiG9w0BAQsFADBqMR0wGwYDVQQDDBRiaXJk
bnMuc29mdGV0aGVyLm5ldDEdMBsGA1UECgwUYmlyZG5zLnNvZnRldGhlci5uZXQx
HTAbBgNVBAsMFGJpcmRucy5zb2Z0ZXRoZXIubmV0MQswCQYDVQQGEwJVUzAeFw0x
ODAyMjMyMjQ5MzRaFw0zNzEyMzEyMjQ5MzRaMGoxHTAbBgNVBAMMFGJpcmRucy5z
b2Z0ZXRoZXIubmV0MR0wGwYDVQQKDBRiaXJkbnMuc29mdGV0aGVyLm5ldDEdMBsG
A1UECwwUYmlyZG5zLnNvZnRldGhlci5uZXQxCzAJBgNVBAYTAlVTMIIBIjANBgkq
hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx3QmHrH8eoFMNgehKBDA7vmzoBanPqpx
osMJnZutO05pPhJiDgDHzBQernAi9aUcntWjL6cMuoYxG2WIEa4DG8fpiC/DFAcF
vY1nHmyvSlSkBdHUvIDUxfcVkeEzOcIQxlQrhdmzJESIyTSLSLHrtyvmKxHGlPke
dalH2SPyHMLpEHttL6nY2GUe/u99X7VtT8BRWhFv+qpvo5lq9/IgXwT/r/hRAQMQ
+teqc5j9QRcYkjxmfRYjKsIpjeS51Z6teMz6fkrMtF22mKVlM28CaP76uB0SxEIq
BSAMzSuGk3P6vyvWO1Oqthkh/oxaoSM8j+MxbqHsiyQUv7HITSCulwIDAQABo4GG
MIGDMA8GA1UdEwEB/wQFMAMBAf8wCwYDVR0PBAQDAgH2MGMGA1UdJQRcMFoGCCsG
AQUFBwMBBggrBgEFBQcDAgYIKwYBBQUHAwMGCCsGAQUFBwMEBggrBgEFBQcDBQYI
KwYBBQUHAwYGCCsGAQUFBwMHBggrBgEFBQcDCAYIKwYBBQUHAwkwDQYJKoZIhvcN
AQELBQADggEBAB/67p5nmbxS5WmyN1iSBgzuZpU2N3vDae/tRMt2inxZxEZaNyAf
QodYZ3lf1SGRH2ivJLf/8TMgTPaI5/x2w37VvZcAQB7vn5+EvKXm2MHEkEhi0yNX
29nUhyewxrcEqnZTy1sBCt9Gd3dGOZtUnHpBabePTOylSpTK1FLD0cIFZuck7WWx
tpVk+Jbd7zQHiH8DIhIP9be+4bYtpsURs6ggfUJsZFgo+lP9u/7AgEBoiLHES/8E
kXCS32fhbAnaoqOb1d/rsQMQfDyMqrMXCUu6IDXx/cd2rjoYNDBgAIvLe94hnVFG
wEH9dZW8RufiJIIZlEU7xcjuMx7EmiZgMUg=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-03T01:27:39+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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