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Serves the main YSN web app and user-facing pages.

Delivers static assets and cached content from edge locations for fast load times worldwide.

Routes users' linked custom domains to their YSN profile page. Handles TLS and forwards each request to the correct profile.

Handles all application requests, including profile data, authentication, and account actions.

The primary database node. Accepts all write operations. If it goes down, an automatic election promotes a secondary node to maintain availability.

In-memory cache used for sessions, rate limiting, and fast data access.