bots.php

   1 <?PHP
   2 // die on bot match
   3 $bot = $_SERVER['HTTP_USER_AGENT'];
   4 $pos = strpos($bot, 'SemrushBot');
   5 if ($pos !== false) {
   6     die('bad robot');
   7 }
   8 $pos = strpos($bot, 'AhrefsBot');
   9 if ($pos !== false) {
  10     die('bad robot');
  11 }
  12 $pos = strpos($bot, 'Slackbot');
  13 if ($pos !== false) {
  14     die('bad robot');
  15 }
  16 ?>