microdominios

Microdominios, or microdomains, are small, distinct subdomains that exist under a single primary domain. They are used to organize a site's services, content, or teams, and to isolate functionality for development, deployment, security, or analytics.

Typical use cases include modular web architectures with separate subdomains for storefronts, blogs, or help centers; deployment of microservices that need separate routing; campaign-specific subdomains for marketing experiments; and regional or language-specific sites.

Benefits include clearer boundaries between components, flexible deployment and access control, improved scalability, and easier analytics separation. Subdomains can also be served from different CDNs or hosting providers to optimize performance.

Drawbacks include potential SEO fragmentation, as search engines may treat subdomains as separate properties; increased DNS and certificate management; cookie and session handling across subdomains; and the need for consistent branding and navigation.

Implementation considerations involve choosing a naming convention, planning effective DNS records, using TLS certificates that cover all subdomains, configuring cookies with appropriate domain scope, and ensuring cross-subdomain policies for security and data sharing.

Governance and security practices should address lifecycle management, access control for different teams, data isolation when needed, and monitoring to detect misconfigurations or outages across microdominios.

In practice, organizations may use microdominios to segment content and services within a single brand, while maintaining a consistent user experience through shared navigation and unified identity.