TCP vs UDP: When to Use What, and How TCP Relates to HTTP
Understand the difference between TCP and UDP, learn when to use each, and discover how HTTP builds on top of TCP for web communication.
Jan 27, 202614 min read5
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Series
Web Dev Cohort 2026
TCP Working: 3-Way Handshake & Reliable Communication
Learn how TCP establishes connections with the 3-way handshake, ensures reliable data transfer with sequence numbers and ACKs, and gracefully terminates connections.
Jan 26, 202613 min read12
How a Browser Works: A Beginner-Friendly Guide to Browser Internals
Learn what happens after you type a URL — from networking to parsing, DOM creation, layout, painting, and pixels on screen.
Jan 25, 202614 min read3
CSS Selectors 101: Targeting Elements with Precision
Learn how to target HTML elements with CSS selectors — element, class, ID, group, and descendant selectors explained with examples.
Jan 24, 202611 min read7
Understanding HTML Tags and Elements
Learn the building blocks of web pages — what HTML tags are, how elements work, and the difference between block and inline elements.
Jan 24, 202612 min read6
Emmet for HTML: A Beginner's Guide to Writing Faster Markup
Learn how to write HTML 10x faster with Emmet shortcuts — from basic elements to nested structures and full boilerplate.
Jan 23, 202611 min read5