International SEO.
Learn what International SEO means in modern search and SEO.
The process of optimising a website to rank in search engines across multiple countries and languages.
International SEO is the practice of optimising a website's visibility in search results across multiple countries and languages. It addresses the technical, content, and authority challenges of serving different markets: choosing between ccTLDs, subdomains, or subdirectories; implementing hreflang correctly; creating high-quality translated or localised content; building local authority in each target market; and understanding how Google serves different results in different geographic markets.
URL Structure Choices
The primary architectural decision in international SEO is URL structure: ccTLDs (country-code top-level domains like .co.uk, .de) send the strongest geographic signal but require separate authority building per domain; Subdomains (de.example.com) share limited authority but separate tracking cleanly; Subdirectories (example.com/de/) share domain authority fully but mix country traffic in one domain. For most businesses without significant per-country resources, subdirectories provide the best balance of authority consolidation and geographic targeting.
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Articles about International SEO
Read more on the Aergos blog.
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The Complete Technical SEO Handbook: August 2025 Edition
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10 SEO Tasks an AI Agent Cannot Actually Do (Yet)
AI agents can draft content, brainstorm keywords, and explain technical concepts. But there are real gaps between what an LLM thinks it knows and what your site actually needs. Here are 10 SEO tasks where AI still falls short — and what to use instead.
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