Greasy Fork is available in English.

V2EX Redirect

Redirect subdomains of v2ex.com to www.v2ex.com

// ==UserScript==
// @name                 V2EX Redirect
// @name:zh-CN           V2EX 自动重定向
// @namespace            http://tampermonkey.net/
// @version              0.3
// @description          Redirect subdomains of v2ex.com to www.v2ex.com
// @description:zh-CN    重定向 v2ex.com 的子域名至 www.v2ex.com
// @author               Jiachen Chen
// @match                *://*.v2ex.com/*
// @match                *://v2ex.com/*
// @icon                 https://www.google.com/s2/favicons?domain=v2ex.com
// @grant                none
// ==/UserScript==

(function () {
  "use strict";

  if (
    location.hostname != "www.v2ex.com" &&
    location.hostname != "blog.v2ex.com" &&
    location.hostname != "livid.v2ex.com"
  ) {
    window.location.replace(
      "https://www.v2ex.com" +
        location.pathname +
        location.search +
        location.hash
    );
  }
})();