Guide · 10 min · Updated 20/05/2026
International SEO: hreflang done right
x-default, return-tags, ccTLD vs subfolder, and the patterns that consistently break in Search Console.
Cluster shape matters more than tag count
Every locale variant of a URL must list every other locale variant — plus x-default. Missing return-tags is the most common error. The cluster is symmetric or it is broken.
ccTLD vs subfolder vs subdomain
Subfolder is the default unless you have explicit per-country legal entities and SEO budget for each. ccTLDs split link equity. Subdomains split link equity and confuse Google. Subfolders aggregate.
Common questions
Do I need separate XML sitemaps per locale?
Not required — a single sitemap with hreflang annotations is sufficient and easier to maintain.