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Twitter/X Nitter Redirect

Redirect twitter.com and x.com links to a random healthy Nitter instance.

  1. // ==UserScript==
  2. // @name         Twitter/X Nitter Redirect
  3. // @version      1.0
  4. // @description  Redirect twitter.com and x.com links to a random healthy Nitter instance.
  5. // @author       yodaluca23
  6. // @license      GNU GPLv3
  7. // @match        *://twitter.com/*
  8. // @match        *://www.twitter.com/*
  9. // @match        *://x.com/*
  10. // @match        *://www.x.com/*
  11. // @grant        GM_xmlhttpRequest
  12. // @namespace http://tampermonkey.net/
  13. // ==/UserScript==
  14.  
  15. (function() {
  16.     'use strict';
  17.  
  18.     const staticURL = ''; // Set this to an instance if you always want to use a single Nitter instance instead of fetching from API.
  19.  
  20.     const apiUrl = 'https://status.d420.de/api/v1/instances';
  21.  
  22.     const profileURLPattern = /^https?:\/\/(www\.)?(twitter\.com|x\.com)\/[A-Za-z0-9_]+(\/.*)?$/;
  23.  
  24.     let currentURL = window.location.href;
  25.  
  26.     function fetchNitterInstance(callback) {
  27.         GM_xmlhttpRequest({
  28.             method: 'GET',
  29.             url: apiUrl,
  30.             onload: function(response) {
  31.                 try {
  32.                     const data = JSON.parse(response.responseText);
  33.  
  34.                     if (!data.hosts || !Array.isArray(data.hosts)) {
  35.                         console.error('Unexpected API response format:', data);
  36.                         return;
  37.                     }
  38.  
  39.                     const healthyInstances = data.hosts.filter(host => host.healthy && !host.is_bad_host);
  40.  
  41.                     if (healthyInstances.length > 0) {
  42.                         const randomInstance = healthyInstances[Math.floor(Math.random() * healthyInstances.length)];
  43.                         callback(randomInstance.domain);
  44.                     } else {
  45.                         console.warn('No healthy Nitter instances found.');
  46.                     }
  47.                 } catch (error) {
  48.                     console.error('Failed to parse Nitter instance data:', error, response.responseText);
  49.                 }
  50.             },
  51.             onerror: function(error) {
  52.                 console.error('Error fetching Nitter instances:', error);
  53.             }
  54.         });
  55.     }
  56.  
  57.     function redirectToNitter(nitterDomain) {
  58.         if (profileURLPattern.test(currentURL)) {
  59.             let newURL = currentURL.replace(/(twitter\.com|x\.com)/, nitterDomain);
  60.             console.log('Redirecting to:', newURL);
  61.             if (newURL !== currentURL) {
  62.                 window.location.replace(newURL);
  63.             }
  64.         } else {
  65.             console.log('URL does not match profile pattern, no redirection.');
  66.         }
  67.     }
  68.     if (staticURL.length > 1) {
  69.       redirectToNitter(staticURL);
  70.     } else {
  71.       fetchNitterInstance(redirectToNitter);
  72.     }
  73. })();