SSL/TLS Certificate Lookup

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

smartcity-iot.net

SSL/TLS Certificate

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SSL/TLS Certificate for smartcity-iot.net

Expired

Issued by (CA): Sectigo Limited
Subject: *.iotharderwijk.nl
Valid from: Oct 9, 2019
Valid until: Oct 23, 2020 (expired 2158 days ago)
Public key: RSA 2048-bit
Serial: 8A598BFE9BAEE9E6F1AADEF103CBB606
SHA-256 fingerprint: 25:36:88:36:D9:0C:68:EA:A6:AB:B1:7F:94:05:9F:35:6C:4D:DC:2B:CC:63:2A:40:3A:81:BC:CA:83:8D:06:A6
Chain: Sectigo RSA Domain Validation Secure Server CA → USERTrust RSA Certification Authority

Subject Alternative Names (2)

*.iotharderwijk.nl, iotharderwijk.nl

Certificate Authority Authorization (CAA)

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

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DNS changes

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TLS certificate

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