QNetworkAccessManager and multiple simultaneous requests

[anda_skoa]

I create a thread and a QNAM for each site. (For each site QNAM must have different cookies).

Different cookies as in "the same non-site specific cookie but each site should get a different value"?

Then I've tried using a single thread but is too slow because it won't fetch data from next site until current site reply is finished.

You mean one thread and still one QNAM per site?
Even one QNAM can handle multiple connections simultaniously, so maybe you are blocking the processing somehow?

Cheers,
_