SEO. A subdomain is generally considered as a separate site. So having all content on the root domain increases its authority and thus rankings. The Cloudflare

SEO. A subdomain is generally considered as a separate site. So having all content on the root domain increases its authority and thus rankings. The Cloudflare blog has a good explanation: https://blog.cloudflare.com/subdomains-vs-subdirectories-best-practices-workers-part-1/ https://blog.cloudflare.com/subdomains-vs-subdirectories-bes...