User
Browser
→
NGINX CDN
Mumbai
→
NGINX LB
US-East-1
→
App Server
Node.js :4000
→
Redis
:6379
→
PostgreSQL
:5432
Student Records v4.1 — Production
📡 Last Request — Live Inspector
App Server ID :—
Data Source :—
Redis TTL :—
CDN URL :—
Media Host :—
How to verify CDN cache in browser:
Open DevTools → Network tab → click any image/video request → Headers tab.
Look for: X-Cache-Status: HIT (served from Mumbai) or MISS (fetched from US origin).
Also check X-Served-From: Mumbai-CDN and compare the Request URL — it should show cdn.vishal.com not the app server.