Subdomain โ part before main domain: blog.site.uz. Free, unlimited.
When useful
Different content types, language versions, multi-brand, dev/staging.
When not
SEO: if content related โ use folder (site.uz/blog).
Setup
DNS A or CNAME record. 5-minute activation.
SSL
Standard SSL covers only main. For subdomains โ Wildcard *.site.uz.