[C #] parameters to be set for HTTP requests

HTTP requests in. NET are very convenient and will be used frequently.

Webrequest, httpwebrequest, WebClient

If a large number of concurrent operations are performed in poor network environments, the performance may be greatly reduced.

Generally, you can set several parameters at the beginning of the program:

Servicepointmanager. defaultconnectionlimit = 20;
Webrequest. defaultwebproxy = NULL;

Servicepointmanager. defaultconnectionlimit refer to here

Webrequest. defaultwebproxy refer to here

Both of these settings are invalid for the instantiated servicepoint.