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HTTPS cheat sheet & developer notes

HTTPS cheat sheet and 7 curated developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · HTTPS

Security Best Practices

HTTP Security Best Practices. Web security at the HTTP layer involves configuring correct headers, enforcing HTTPS, preventing injection attacks, and protecting session cookies. Most vulnerabilities stem from misconfigur…

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02 · HTTPS

HTTP Fundamentals

HTTP Fundamentals. HTTP (Hypertext Transfer Protocol) is the foundation of data communication on the web. Every web request/response follows this protocol. Understanding it thoroughly makes you a better API designer, deb…

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03 · HTTPS

HTTP Headers

HTTP Headers Reference. HTTP headers pass metadata with requests and responses. Understanding the most important ones is essential for building secure, performant APIs and web applications.. Common Request Headers. # Hos…

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04 · HTTPS

TLS & HTTPS

TLS & HTTPS. HTTPS = HTTP + TLS (Transport Layer Security). TLS provides three guarantees: confidentiality (encryption prevents eavesdropping), integrity (tampering is detected), and authentication (you are talking to th…

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05 · HTTPS

Security Headers & HTTPS Best Practices

Security Headers & HTTPS Best Practices. Essential Security Headers. Header | Effect --------------------------------|---------------------------------------------- Strict-Transport-Security | Force HTTPS, tell browser t…

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06 · HTTPS

HTTP & HTTPS Fundamentals

HTTP & HTTPS Fundamentals. HTTP (HyperText Transfer Protocol) is the foundation of web communication. HTTPS = HTTP over TLS — the same protocol but encrypted. Understanding the protocol is essential for debugging, API de…

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07 · HTTPS

TLS/SSL — Certificates & Handshake

TLS/SSL — Certificates & Handshake. TLS (Transport Layer Security) encrypts communication between client and server. SSL is the deprecated predecessor — when people say "SSL" they usually mean TLS. HTTPS = HTTP over TLS.…

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