Android APPS claiming lets crypt unsecure

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My domain is:

I ran this command:

It produced this output:
Failure on Android Device, stating that my Site is nit trusted.

My web server is (include version):

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):

Welcome to the community @menard1965

I do not see anything wrong with the certs sent from your server. And, SSL Labs also looks good:

Can you provide more info?

What version of Android:
Name of client or browser showing the error:
Version of that client or browser:

Are there any other details shown with the error?


This is a brandnew Android device from a customer.

Whenever Customner starts the APP thsi screen occurs on any request.


What app is being used? It's probably an issue with the TLS library used within the app, perhaps similar as discussed here: Android 7.1.1 and earlier still unable to create secure connection to server - #7 by Nummer378


no its an app i develop.
There i just open a PHP script that gets SQL data to use in the APP. Thats all
It works on older Android devices just the new one makes this error.

The Android Galaxy Tab S7+ 5G
Android Version 11
Kernel: 4.19.113-22501734

What HTTPS client is used in the app to do that?


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