Something

ON *:TEXT:!players:*:{
  /set %RSP.nick $nick
  /sockopen RSPlayers runescape.com 80
}

on *:sockopen:RSPlayers:{ 
  sockwrite -n $sockname GET /title.ws HTTP/1.1
  sockwrite -n $sockname Host: runescape.com
  sockwrite -n $sockname $crlf $crlf
}
on *:sockread:RSPlayers:{
  if ($sockerr) {
    echo -a Error.
    halt
  }
  else {
    var %temptext
    sockread %temptext
    if ( There are currently * people playing! iswm %temptext ) {
      .notice %RSP.nick
      /sockclose $sockname
    }
  }
}