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

mx.seti.com.br · 187.109.122.57:443

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=TRAEFIK DEFAULT CERT
Issuer
CN=TRAEFIK DEFAULT CERT
Valid from
2026-09-23T00:50:16+00:00
Expires
2027-09-23T00:50:16+00:00
Days remaining
344
Serial (hex)
795877ACA5065888D1150D8A25B9A4A8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:41df7ecc4fbd90479079b2ee342c1cc9.4da20825643fd1542b889df35f04c376.traefik.default

SHA-256 fingerprint

06:E9:44:68:31:DA:9F:99:DB:F2:4D:25:44:5E:70:E3:5A:BB:D9:4D:0A:CB:01:5E:71:AF:FD:35:45:CB:59:0D
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment, Data Encipherment, Key Agreement
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectAltName
DNS:41df7ecc4fbd90479079b2ee342c1cc9.4da20825643fd1542b889df35f04c376.traefik.default
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-13T07:12:47+00:00

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

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