SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

localknowledge.host

SSL/TLS Certificate

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SSL/TLS Certificate for localknowledge.host

Valid

Issued by (CA): Let's Encrypt
Subject: localknowledge.host
Valid from: Jun 14, 2026
Valid until: Sep 12, 2026 (37 days remaining)
Public key: RSA 2048-bit
Serial: 0636ECB3BC6663B40570B19EE113E280B994
SHA-256 fingerprint: 46:02:9D:9B:26:9B:3B:D8:72:67:DA:57:70:67:8B:16:F4:4D:8C:AA:2E:33:16:5D:68:6D:06:0D:80:84:2B:2E
Chain: YR2 → Root YR → ISRG Root X1

Subject Alternative Names (2)

localknowledge.host, www.localknowledge.host

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is not among the authorities this domain's CAA records authorize (sectigo.com). This can indicate a misconfiguration or an unexpected issuance.

This certificate has been served since Jul 24, 2026.

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Uptime

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DNS changes

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TLS certificate

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