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.hostns.io · 93.191.28.108:443

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
The certificate has expired.

Certificate verification failed

Subject
CN=ai.hostns.io
Issuer
CN=ai.hostns.io
Valid from
2025-02-13T13:43:57+00:00
Expires
2026-02-13T13:43:57+00:00
Days remaining
-252
Serial (hex)
48765678
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:ai.hostns.io, DNS:mail.ai.hostns.io, DNS:www.ai.hostns.io, DNS:cpanel.ai.hostns.io, DNS:webmail.ai.hostns.io, DNS:webdisk.ai.hostns.io, DNS:cpcontacts.ai.hostns.io, DNS:cpcalendars.ai.hostns.io, DNS:autodiscover.ai.hostns.io

SHA-256 fingerprint

83:1A:2B:9B:08:25:26:D5:2F:37:D9:25:51:96:83:78:D7:10:5A:A9:BE:1D:F5:67:05:E7:57:41:F4:81:D5:8A
Certificate extensions & PEM
subjectKeyIdentifier
99:FF:BA:79:5D:2D:40:34:3D:3E:38:F8:B2:32:2C:D9:73:0C:AA:4E
basicConstraints
CA:FALSE
authorityKeyIdentifier
keyid:99:FF:BA:79:5D:2D:40:34:3D:3E:38:F8:B2:32:2C:D9:73:0C:AA:4E DirName:/CN=ai.hostns.io serial:48:76:56:78
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectAltName
DNS:ai.hostns.io, DNS:mail.ai.hostns.io, DNS:www.ai.hostns.io, DNS:cpanel.ai.hostns.io, DNS:webmail.ai.hostns.io, DNS:webdisk.ai.hostns.io, DNS:cpcontacts.ai.hostns.io, DNS:cpcalendars.ai.hostns.io, DNS:autodiscover.ai.hostns.io
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-23T02:33:02+00:00

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

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