Server Features » TLS Certificate » Unknown CA » IRCU

TLS certificate status: Unknown CA

Percentage of SSL/TLS servers with certificate status Unknown/non-trusted Certificate Authority. Showing percentages for IRCU servers only.

About this test result: The certificate is signed by an unknown or non-trusted Certificate Authority. This will generate a certificate warning on the IRC client which the user will have to ignore. This is not secure as it allows a Man-in-the-Middle attack.
Note on statistics:

Table

Percentage of SSL/TLS servers with certificate status Unknown/non-trusted Certificate Authority. Showing percentages for IRCU servers only.
Version Sep 2017Dec 2018Dec 2019Dec 2020Dec 2021Dec 2022Dec 2023
2.10 9% 20% 7% 9% 9% 18% 22%
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