What kind of line do I have?

I wanted to know what kind of line I have on my Ps5

The fluctuating speed test on the console is not enough to find out. Especially not via a WLAN connection. In addition, there are specific pages and apss for this, alternatively this is of course also in the contract documents.

Can you suggest pages to me

https://www.speedtest.net/...dtest.net/
https://www.speed.io/
https://www.nperf.com/de/
https://breitbandmessung.de/
https://www.wieistmeineip.de/speedtest/

There's 81.78 ping 15 ms

what does that mean 😐😊