Hi @dpsingh1812
we had that yesterday:
First, create a certificate with your domain name.
Then use it with your OoklaServer.
I see, you have checked your website via https://check-your-website.server-daten.de/?q=speedtest.dbroadband.in
The speedtest.dbroadband.in
uses the wrong certificate, there is a wildcard certificate you can use.
And if you use port 8080 (as in the other thread), you can check the port direct:
speedtest.dbroadband.in:8080
if your certificate chain is complete.