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.intersv.com · 217.147.163.133:443

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
O=DirectAdmin Self-Signed
Issuer
O=DirectAdmin Self-Signed
Valid from
2026-10-24T00:00:00+00:00
Expires
2036-10-24T00:00:00+00:00
Days remaining
3641
Serial (hex)
18E14E19F1520000
Signature
ecdsa-with-SHA256
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:localhost

SHA-256 fingerprint

0E:8E:F9:E2:3D:3C:EC:31:91:3C:33:DA:2F:32:93:72:22:25:10:77:C2:90:F4:50:E9:1C:AE:80:10:83:46:BE
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
E8:F7:B1:4C:6D:1D:0D:89:EB:8E:64:DA:3C:78:1C:B2:AB:EA:6E:40
subjectAltName
DNS:localhost
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-04T15:19:48+00:00

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

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