What Is an ETag? A Plain-English Q&A
Common questions about HTTP ETags answered in plain language — fingerprints for cached content, If-None-Match, 304 Not Modified, strong vs weak validators, and how they fit with Cache-Control.
5 Cache-Control Directives Worth Knowing
Understanding max-age, s-maxage, no-cache, no-store, and stale-while-revalidate — how HTTP caching headers control browser and CDN behavior.
no-cache vs no-store: What's the Difference?
Cache-Control: no-cache doesn't mean 'don't cache'. Here's what no-cache and no-store actually do, when to use each, and why the names are misleading.
Checklist: Do You Actually Need a CDN?
A practical checklist to understand what CDNs do, what they cache, when they help, and whether your site needs one.
Git Branch vs Commit: What's the Difference?
Branches and commits are both fundamental to git — but they work in completely different ways. Here's what each one does and why it matters.
Cookies, localStorage, and Session Storage: Which One When?
A comprehensive guide to browser storage mechanisms — understand cookies, localStorage, and sessionStorage, how they differ, when to use each, and the security implications of your choice.
How to Read an HTTP Status Code Without Panic
A plain-language guide to understanding 2xx, 3xx, 4xx, and 5xx status codes — what they mean, when you see them, and what to do about them.
Checklist: Is This Website Connection Actually Secure?
A practical checklist to understand what HTTPS, padlocks, and certificate warnings really mean for your connection security.
7 Things Your Browser Does Before a Page Loads
From DNS lookup to rendering pixels — here's the hidden work your browser does in milliseconds every time you hit Enter.
HTTP vs HTTPS: What Actually Changes
One letter, one protocol upgrade — but the difference between HTTP and HTTPS is bigger than you think.
What Is an API in Plain English?
Common questions about APIs answered in plain language — what they do, how they work, why they matter, and how they power every app you use.
How to Tell If a Redirect Is Permanent or Temporary
Learn to distinguish between 301 permanent redirects and 302 temporary redirects — what they mean, when they're used, and why the difference matters for SEO and user experience.
What Is DNS? A Plain-English Q&A
Common questions about DNS answered in plain language — recursive vs authoritative servers, TTL and caching, how nameservers work, and why they matter when you visit a URL.
5 Tiny Tech Ideas Worth Understanding This Week
A curated roundup of five essential tech literacy concepts from our bits collection — bite-sized lessons on how the web, code, and privacy actually work.