---
title: "Discussion on \"What Every SDET Must Know About the Web — Part 1\" | Hashnode"
description: "Discussion on \"What Every SDET Must Know About the Web — Part 1\". HTTP lifecycle, auth, CORS, DOM rendering, and network \nstates explained through the lens of what breaks in your \ntests when you don't understand them"
url: "https://hashnode.com/posts/sdet-web-fundamentals-part-1/6a5070343442c7b0dc94ce31"
---

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# [What Every SDET Must Know About the Web — Part 1](https://ayushnigam.hashnode.dev/sdet-web-fundamentals-part-1?utm_source=hashnode&utm_medium=feed)

HTTP lifecycle, auth, CORS, DOM rendering, and network states explained through the lens of what breaks in your tests when you don't understand them

Jul 10 · 13 min read · ayushnigam.hashnode.dev  
Updated 3d ago  
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-   [#testing](https://hashnode.com/tag/testing)
-   [#web-development](https://hashnode.com/tag/web-development)
-   [#sdet](https://hashnode.com/tag/sdet)
-   [#playwright](https://hashnode.com/tag/playwright)
-   [#backend](https://hashnode.com/tag/backend)

## Written by

[Ayush Nigam](https://hashnode.com/@ayush-nigam)

@ayush-nigam · India

  
[View profile](https://hashnode.com/@ayush-nigam)

SDET | Full Stack Developer

Full-stack developer focused on testing infrastructure and quality engineering. I write about building robust test suites, and scalable QA architecture using pytest, Vitest, Jest, Playwright, and Cypress. I also cover performance testing with k6, AI evaluation pipelines with DeepEval and RAGAS, and CI/CD integration. Practical articles from real projects, no fluff.

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