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Howdy. Hreflangs implementation works along with browser settings. So, getting rid of hreflangs and rely on browser settings alone will not fix your problems. I wonder if all those errors have something to do with your hreflangs not working properly. Other than that, you can use IPs for "helping" browsers to determine the location. You can use suggestive popup or banner for languages etc like: Examine the Accept headers sent by the browser. Use IP geolocation to determine the user's location and guess an appropriate language. Force the user to explicitly select a language, as exemplified by Wikipedia. Hope this helps.