Bans when parsing (too many requests). How to fix?

Question

PHP

<?php
  require_once('../phpQuery/phpQuery.php');
  require_once('../curl.php');
  require_once('../simple_html_dom.php');



  $curl = new Curl();

  $res = $curl->get('http://www.bestchange.ru/qiwi-to-ripple.html');
  $doc = phpQuery::newDocument($res->body);
  $changes = $doc->find('div#rates_block table#content_table tr');

  foreach ($changes as $change) {
    $pq = pq($change);
  }
?>

How to make sure that the site is not banned when parsing?
Too many requests.
Scab exchangers with bestchange.ru.
What does banned mean?
Uploaded the parser to the hosting.
Scab and output exchangers in the form of a table.
At first, everything outputs well, and after a few minutes, nothing outputs.

Answer 1

Use proxies for burst requests, for example.

Answer 2

Added CURL.

$ch = curl_init('http://www.bestchange.ru/qiwi-to-zcash.html');
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
  curl_setopt($ch, CURLOPT_PROXY, '188.130.134.13:46546'); // есть список proxy
  curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
  curl_close($ch);

Answer 3

How to parse without a ban?

Answer 4

Do through this server https://apify.com/store?type=acts

Answer 5

Write what kind of site at least?
and in what way does it ban? maybe, for example, it gives a captcha for solving - in this case, you can use the rucaptcha recognition services.
or change ip if it doesn't help...
+ you can reduce the speed of parsing - then it might be better too.

Answer 6

tin) well, there is an api there that gives the zip file ... one said about the proxy, and away we go ...