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Why do websites use cookies?

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Answer: Remember login state and cart items

Render page images and fonts — Wrong. Cookies are small text files, not rendering tools. They store data like login state, shopping cart contents, and language settings to personalize your experience.

Remember login state and cart items ✓ — Correct! Cookies are small text files your browser stores when you visit a website. They remember your login status (so you stay signed in), your shopping cart, and your preferences. HTTP is 'stateless'—each request is independent. Cookies give websites a 'memory' so they recognize returning users. Some track behavior for ads (third-party cookies). You can clear them anytime!

Block malicious scripts and attacks — Wrong. Cookies are not security tools for blocking attacks. Their main job is remembering user information across visits, though secure cookies can help verify identity.

Go deeper: HTTP · HTTP cookie
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