How to bypass the server when it bans for a large number of requests?

Question

Parsing

$dom = HtmlDomParser::file_get_html($page, false, null, 0)->find(".leftcol .area .listItem");

For a large number of requests, the server bans and does not return html (403)
How can I solve the problem?
I read that perhaps a proxy can help, but how to implement it? and help?

Answer 1

request to read robots.txt less often
and follow the rules specified there