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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Posted by jpluimers on 2018/01/11

I wish I had bumped into this when it got released in 2015: [ hosted in the cloud and maintained by two people from Google and Mozilla.

Where is for checking server-side certificates, this one is for checking clients against many, many (did I already write MANY?) server side configurations both good (with a varying set of security settings like cyphers and key exchanges) and bad.

One of the bad ones is which your clients should not be able to connect to without throwing a big error.

Sources are at [WayBack] GitHub – chromium/ Memorable site for testing clients against bad SSL configs.

Before using, please read their

Disclaimer is meant for manual testing of security UI in web clients.

Most subdomains are likely to have stable functionality, but anything could change without notice. If you would like a documented guarantee for a particular use case, please file an issue. (Alternatively, you could make a fork and host your own copy.) is not an official Google product. It is offered “AS-IS” and without any warranties.


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