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Phase 1 · Web & Internet Foundations

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DNS

Part of the Full Stack Developer Roadmap.

Summary

The Domain Name System translates human-readable domain names into IP addresses that clients use to locate your frontend and backend servers.

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 app.

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More topics in Web & Internet Foundations

Internet HTTP vs HTTPS Client-Server Architecture Request-Response Cycle REST Principles JSON HTTP Status Codes Browsers vs Servers APIs

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