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Userscript: Redirect Website to its English Version
// This userscript redirects you to the English version of a website if it's denoted in the source code.
// Insert any URLs of websites below (after @match), for example* or*
// Use multiple @match clauses to enable the script on several domains.
// ==UserScript==
// @name Redirect to English
// @namespace
// @version 1.0
// @description Redirect websites to their English version
// @author Florian Reuschel <>
// @match [INSERT URL HERE]
// @grant none
// ==/UserScript==
if (document.documentElement.lang !== 'en') {
const referrerHost = document.referrer
? new URL(document.referrer).hostname
: undefined
const currentHost = new URL(location.href).hostname
if (
// Don't redirect when directly calling the page
referrerHost !== undefined &&
// Don't redirect if coming from another page on the same domain
referrerHost !== currentHost &&
// Don't redirect if history state indicates that this page has previously been
// redirected away from (to maintain ability to go back to the original language)
!(history.state && history.state.redirectToEnglish)
) {
const englishLink = document.head.querySelector('link[rel="alternate"][hreflang="en"]')
if (englishLink) {
history.replaceState({ redirectToEnglish: true }, null)
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