How to create a permanent connection?

Question

PHP

I explain that the donor site has information that is updated every 5 seconds, this information needs to be parsed. But if I connect to the site every 5 seconds, you understand, they will be banned after 5 minutes. So, how to keep the parser constantly connected to this page and pull the information immediately after it is updated and manipulate it?

Answer 1

1) You can resolve the connection yourself, since php allows you to write http clients. Google for keep-alive. But the option is dubious.
2) do not bathe and bomb the server with requests, having bought proxies. Simple and reliable.

Answer 2

WebSocket, but if there is no access to the donor site - no way.

Answer 3

When the ethical side of the issue, no one even mentioned. It's so normal now, is it okay? Hmm..
If everything is legal, isn't it easier to negotiate with the site owner and use his api?