State of the certificates' support and trust short report


Dear community!

After half a day of using a certificate (a live stream from a bird feeder at here are some thoughts about the certificate trust level.

In short: most, if not all, desktop browsers accept the certificate without questions. In the same time, most, if not all, mobile browsers complain about untrusted certificate.

What are your observations on the topic?


I am not sure if this works for everyone but @jpbe helped me out by explaining that for mobile browsers you also need to set the CertificateChain in your apache/nginx (think also nginx at least) config file. I had the same error and now it’s solved :smile:


Maybe you can check your domain with
There you can see some details about your installed ssl cert.


Just found a perfect solution by @Jpbe in a neighbour post: Mobile browsers security error

For nginx, it will be

ssl_certificate /etc/letsencrypt/live/;
ssl_certificate_key /etc/letsencrypt/live/;

instead of

ssl_certificate /etc/letsencrypt/live/;
ssl_certificate_key /etc/letsencrypt/live/;

(added the solution here for a case somebody coming from Google)


@jpbe, I’ve rechecked my site and now it’s of “A+” grade instead of yesterday’s “B”.
Thank you VERY much!