DNS

Lesson in the Backend Developer Roadmap · Stage 1: Introduction

Last updated 14 September 2026

What is DNS?

DNS (Domain Name System) translates human-readable domain names into IP addresses. Uses hierarchical structure with root servers, TLD servers (.com, .org), authoritative servers, and local DNS servers. Essential for internet functionality, enabling memorable names instead of IP addresses.

Study this in the interactive course See the whole Backend roadmap

Free resources to learn DNS

ArticleEverything You Need to Know About DNS
ArticleWhat is DNS?
ArticleHow DNS works (comic)
VideoDNS and How does it Work?

DNS: common questions

Can I learn DNS in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain DNS in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this DNS tutorial for beginners?

It is lesson 6 of 155 in the free Backend roadmap, in stage 1, Introduction. If you are new to Backend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.