Phase 1 · Internet & Backend Basics
TopicsDNS
Part of the Backend Developer Roadmap.
Summary
The Domain Name System translates human-readable domain names (like api.example.com) into IP addresses that clients use to locate your server.
How to Learn This
- 1Run `nslookup` or `dig` on a domain to see DNS resolution in action.
- 2Learn the difference between A, CNAME and MX records.
- 3Understand how DNS caching affects how fast clients reach your API.
More topics in Internet & Backend Basics
Stuck on this topic? Ask an Insider
Get 1:1 guidance from people who've walked this exact path — free on the InsideEdge app.