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Is my SSL certificate valid?

I have a behavior with this site: https://cartefidelite.mobi/ . I cannot determine if the certificate is valid.

On the iPhone, he said it really, on Androïd he said no! On the desktop, this is the same, it is valid for Safari, but not for Google Chrome (on Mac). In Firefox also does not work.

So my question is: is this certificate really valid, and some browser simply cannot successfully build the hierarchy of the certificate tree in the root certificate? Or is this certificate invalid?

Here is a screenshot on Google Chrome (13.0) and Safari (5.1) :

enter image description here

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2 answers

The certificate is valid, but some browser simply cannot successfully build the hierarchy of the certificate tree in the root certificate. The globalsign CA-G2 certificate is not trusted by all browsers.

What server are you running this application on? The solution is to add certificates from the certificate chain to your server configuration. Then the server will send them to the client, and everything will be fine.

On the Apache HTTP server, you add the following to the configuration:

SSLCertificateChainFile <globalsign domain validation CA - G2.crt>
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For anyone looking for a global CA-G2 domain validation (valid for April 13, 2022), here:

GlobalSign 2011 Domain Validation Root Package

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