Global SEO is the practice of optimising your website to rank in search engines across multiple countries and languages, reaching an international audience. Unlike standard SEO that typically targets one country or language, global SEO requires implementing hreflang tags to indicate language and regional targeting, choosing appropriate URL structures (subdomains, subdirectories, or ccTLDs), and creating or translating content for different markets. It involves understanding regional search engine preferences whilst Google dominates most markets, Baidu leads in China and Yandex in Russia. Cultural nuances, local search behaviours, and regional keyword variations must be considered. Technical considerations include international hosting, local backlink building, and managing currency/location-specific content. Global SEO demands significantly more resources than single-market SEO but enables businesses to scale their online presence internationally.