Performance Optimization

Baseline: main 23.0+. Complements skills bitrix-caching, bitrix-sessions, and bitrix-database.

Composite Site

Technology caching static HTML while loading dynamic blocks via AJAX. Kernel entry points: \Bitrix\Main\Composite\Engine, \Bitrix\Main\Composite\Responder.

1. Mark dynamic zones: <div data-dynamic="true">...</div> or frame mode APIs.
2. Enable in Admin → Settings → Composite Site (Autocomposite or Composite mode).
3. Configure NGINX to serve composite cache pool directly.
4. Clear component cache before enabling.

Modes:

• Autocomposite — kernel auto-detects static/dynamic.
• Composite — manual zone configuration.

NGINX: point try_files to the composite cache pool directory (BitrixVM: Configure nginx to use composite cache).