使用 Cloudflare Worker 一键免费代理 Google 站点

export default {

  async fetch(request, env) {

    const url = new URL(request.url);

    const targetURL = new URL(url.pathname, `https://${env.TARGET_HOSTNAME}`);

    targetURL.search = url.search;

    const newHeaders = new Headers(request.headers);

    const sensitiveHeaders = ['host', 'origin', 'referer', 'x-forwarded-host', 'x-real-ip', 'x-forwarded-for', 'cf-ray', 'cf-connecting-ip',

                              'accept-language', 'cache-control', 'sec-ch-ua', 'sec-ch-ua-mobile', 'sec-ch-ua-platform',

                              'sec-fetch-dest', 'sec-fetch-mode', 'sec-fetch-site', 'sec-fetch-user', 'upgrade-insecure-requests'];

    sensitiveHeaders.forEach(header => newHeaders.delete(header));

    newHeaders.set('Host', env.TARGET_HOSTNAME);

    newHeaders.set('X-Forwarded-For', generateRandomIP());

    const originalUA = request.headers.get('User-Agent') || '';

    newHeaders.set('User-Agent', generateRandomUserAgent(originalUA));

    const newRequest = new Request(targetURL, {

      method: request.method,

      headers: newHeaders,

      body: request.body,

      redirect: 'manual',

    });

    let response = await fetch(newRequest);

    let newResponse = new Response(response.body, response);

    newResponse.headers.delete('x-forwarded-host');

    newResponse.headers.delete('x-forwarded-for');

    newResponse.headers.delete('x-real-ip');

    return newResponse;

  }

};

function generateRandomIP() {

  return Array(4).fill(0).map(() => Math.floor(Math.random() * 256)).join('.');

}

function generateRandomUserAgent(originalUA) {

  const isMobile = /Mobile|Android|iP(hone|od|ad)/i.test(originalUA);

  if (isMobile) {

    const mobileDevices = ['iPhone', 'Android', 'iPad'];

    const randomDevice = mobileDevices[Math.floor(Math.random() * mobileDevices.length)];

    const osVersion = (randomDevice === 'iPhone' || randomDevice === 'iPad')

                      ? Math.floor(Math.random() * 4) + 14

                      : Math.floor(Math.random() * 5) + 10;

    const browserVersion = Math.floor(Math.random() * 20) + 80;

    if (randomDevice === 'iPhone' || randomDevice === 'iPad') {

      return `Mozilla/5.0 (${randomDevice}; CPU OS ${osVersion}_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/${browserVersion}.0 Mobile/15E148 Safari/${browserVersion}.1`;

    } else {

      return `Mozilla/5.0 (Linux; Android ${osVersion}; ${randomDevice}) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/${browserVersion}.0.0.0 Mobile Safari/537.36`;

    }

  } else {

    const desktopOS = ['Windows NT 10.0', 'Macintosh; Intel Mac OS X 10_15', 'X11; Linux x86_64'];

    const browsers = ['Chrome', 'Firefox', 'Safari', 'Edge'];

    const randomOS = desktopOS[Math.floor(Math.random() * desktopOS.length)];

    const randomBrowser = browsers[Math.floor(Math.random() * browsers.length)];

    const browserVersion = Math.floor(Math.random() * 20) + 80;

    return `Mozilla/5.0 (${randomOS}) AppleWebKit/537.36 (KHTML, like Gecko) ${randomBrowser}/${browserVersion}.0`;

  }

}

源码， 设置环境变量TARGET_HOSTNAME ,谷歌设置为ipv6.google.com  其他网站更换 TARGET_HOSTNAME 就可以了