فحص الروابط الداخلية في الصفحة

(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.');
})();

راجع الشيفرة قبل تشغيلها. تقرأ الصفحة الحالية؛ ولا تجري طلبات محدودة إلى الأصل نفسه (البروتوكول والنطاق والمنفذ) إلا فحوص sitemap والروابط. لا ترسل الطلبات ملفات تعريف الارتباط، ولا تغيّر الشيفرة محتوى الموقع.