1. What Happens When You Type a URL Into Your Browser? ( Present in Level 1 aswell ik)
2. How DNS Works
3. How Does HTTPS Work
4. Must Know HTTP Headers
5. Forward Proxy vs Reverse Proxy

ByteByteGo

1. How does REST API work? — Blog#2 — Vi
2. HTTP Status Codes You Should Know
3. Important Things About HTTP Headers / Must Know HTTP Headers
4. HTTPS, SSL Handshake, and Data Encryption Explained
5. Load Balancer vs API Gateway vs Reverse Proxy
6. Short/long polling, SSE, WebSocket
7. How does gRPC work? (high-level)
8. HTTP/1 → HTTP/2 → HTTP/3 differences