पेज पर internal links जाँचें

(async () => {
  const MAX_URLS = 200;
  const CONCURRENCY = 4;
  const TIMEOUT_MS = 10000;
  const deadline = Date.now() + 45000;
  const origin = location.origin;
  const allUrls = [...new Set([...document.links].map((link) => {
    try { const url = new URL(link.href); url.hash = ''; return url.origin === origin && /^https?:$/.test(url.protocol) ? url.href : ''; } catch { return ''; }
  }).filter(Boolean))];
  const urls = allUrls.slice(0, MAX_URLS);
  const results = new Array(urls.length);
  let cursor = 0;
  async function worker() {
    while (cursor < urls.length && Date.now() < deadline) {
      const index = cursor++;
      const controller = new AbortController();
      const timer = setTimeout(() => controller.abort(), Math.min(TIMEOUT_MS, deadline - Date.now()));
      try {
        const response = await fetch(urls[index], { method: 'HEAD', credentials: 'omit', redirect: 'follow', cache: 'no-store', signal: controller.signal });
        results[index] = { url: urls[index], status: response.status, finalUrl: response.url, result: response.status === 405 || response.status === 501 ? 'HEAD unsupported; check manually' : response.ok ? 'OK' : 'HTTP error' };
      } catch (error) {
        results[index] = { url: urls[index], status: '', finalUrl: '', result: error.name === 'AbortError' ? 'timeout' : 'blocked or network error' };
      } finally { clearTimeout(timer); }
    }
  }
  await Promise.all(Array.from({ length: Math.min(CONCURRENCY, urls.length) }, worker));
  for (let index = 0; index < urls.length; index++) if (!results[index]) results[index] = { url: urls[index], status: '', finalUrl: '', result: 'not checked: 45-second runtime limit' };
  console.table(results);
  if (allUrls.length > MAX_URLS) console.warn('Only the first ' + MAX_URLS + ' of ' + allUrls.length + ' unique internal URLs were checked.');
  console.info('Checked ' + results.filter((row) => !row.result.startsWith('not checked')).length + ' of ' + urls.length + ' unique same-origin links with HEAD requests. Limits: ' + MAX_URLS + ' links and 45 seconds. Unsupported HEAD, access restrictions, or browser policy can make a result inconclusive. No cookies were sent.');
})();

चलाने से पहले review करें। यह मौजूदा page पढ़ती है; केवल sitemap और link audits सीमित same-origin requests भेजते हैं। Requests में cookies शामिल नहीं होते; script site content नहीं बदलती।