This document outlines 5 common mistakes companies make when expanding their websites and SEO internationally: 1. Assuming English is sufficient when people often search in their local language 2. Relying on machine translations which can lead to invisible or incorrect content 3. Assuming the same popular products and content will appeal worldwide without customization 4. Implementing hreflang tags incorrectly through errors in language codes, lack of reciprocal links, or conflicts with canonical tags 5. Failing to continue optimizing the international sites through local keyword research, content, and technical configuration after the initial launch