🔒 SSL certificate check

Expiry date, days left, issuer, SANs, negotiated TLS version, and whether the chain, hostname and trust are in order.

Invalid

Invalid · 725 days left

Expires 2028-09-14 21:01 UTC

https://self-signed.badssl.com · checked 2026-09-20 01:44 UTC from Vigil's servers

not trusted TLSv1.2

Checks

✕	Trusted chain chain incomplete, untrusted or self-signed	fail
✓	Hostname matches certificate covers self-signed.badssl.com	pass
✓	Not expired 725 days left	pass
✕	Not self-signed issued by BadSSL	fail
✓	Modern TLS negotiated TLSv1.2 · ECDHE-RSA-AES128-GCM-SHA256	pass

Problems

Certificate is self-signed high

Use a certificate from a public CA (Let's Encrypt is free) so browsers trust it.

Certificate

Subject: *.badssl.com · BadSSL
Issuer: BadSSL (*.badssl.com)
Valid from: 2026-09-15 21:01 UTC
Valid until: 2028-09-14 21:01 UTC (725 days)
Serial: e010505557251e9c
Protocol: TLSv1.2 · ECDHE-RSA-AES128-GCM-SHA256
SANs (2): *.badssl.combadssl.com

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