Скачать или смотреть Browser to Server Journey Explained | What Happens When You Hit a URL?Explained(DNS, TCP, TLS, HTTP)

Ever wondered what really happens behind the scenes when you type a URL like https://www.example.com in your browser and hit Enter?

In this video, I explain the complete journey from browser to server and back, covering every step in detail — from DNS to TCP Handshake, TLS Encryption, HTTP communication, and finally Rendering in the browser.

Topics Covered:

URL Breakdown → Protocol, Host, Port, Path, Query, Fragment
Browser & DNS Cache Lookup → Speeding up previous requests
DNS Resolution Deep Dive → Root → TLD → Authoritative Servers
TCP 3-Way Handshake → SYN, SYN-ACK, ACK
TLS Handshake (HTTPS) → RSA vs ECDHE Key Exchange
Port Numbers & Why They're Needed
HTTP Request & Response Lifecycle
Server Processing (Nginx / Apache / Backend Framework)
Browser Rendering Pipeline → DOM, CSSOM, JS Execution, Paint, Composite
Persistent Connections (Keep-Alive, HTTP/2 Multiplexing)
Geolocation & CDN Flow (How YouTube / Google Serve Fast Content)


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