Why are the readings of different sites on measuring the speed of the Internet so different?

Question

Computer networks

Speedtest gives some incredible speed of 200mb/sec www.speedtest.net/result/7552538653.png. www.speedtest.net/result/7552538653
Despite the fact that my tariff is 50Mbps. Well, at first I was naturally delighted, but I understand that such a freebie cannot be. I went and measured it on Yandex https://yandex.ru/internet/informer/black/ru/60395... that's the same as it should be according to the tariff. And on 2ip, too, in the region of 50Mbps. It turns out that the most popular site for measuring speed speedtest.net is deceiving me? Can he show some other speed? Not specifically my pc

Answer 1

Of course, the exchange rate with different nodes will be different. It depends on the distance to the node, on how free the channel through which your traffic will go, on the speed with which this node can transmit data at all. And all this is changing every second.

With an incoming connection through a torrent client, the exchange rate is limited to the upper limit of the tariff. The best and most believable of all tests.

Answer 2

Why are the readings of different sites on measuring the speed of the Internet so different?

Because there is no Internet speed and cannot be!!!
The Internet is a global network connecting many computers.
You measure the speed of data exchange with some of the nodes of this network.
Of course, the exchange rate with different nodes will be different. It depends on the distance to the node, on how free the channel through which your traffic will go, on the speed with which this node can transmit data at all. And all this is changing every second.

Despite the fact that my tariff is 50 Mbps.

Your tariff is the maximum speed with which the provider can send your traffic to the global network and nothing more.
Your provider cannot affect the speed of access to third-party resources in any way - it depends little on him.

Answer 3

Everything is quite simple. Speed ​​measurement in automatic mode goes to the "nearest" server.
If the nearest server is the server of your provider (as I understand it from Rostelecom), then the speed will be the maximum available within the local network of the provider.
Speedtest always tries to measure up to servers on the "local" network... And usually it f***s
Option two - the site is paid, as does the house of ru for example.

Answer 4

Why are the readings of different sites on measuring the speed of the Internet so different?

At this point, how will they agree on the boundary junctions of autonomous regions.
Another question is what protocol the Speedtest uses to measure traffic? How is speed calculated in general?