Articles & Insights
Practical developer guides on JSON formatting, HTTP security headers, cryptographic hashing, password entropy, JSON Web Tokens, Core Web Vitals, regular expressions, technical SEO, and URL debugging.
Step-by-step technical guides written by Huzaifa and paired with client-side browser utilities.
By Huzaifa • 2026-10-22 • 6 min read
Learn how strict RFC 8259 JSON differs from JavaScript object literals, how to track down trailing commas and encoding bugs, and how to format or minify JSON payloads safely in your browser.
By Huzaifa • 2026-10-19 • 6 min read
A practical breakdown of eight essential HTTP response security headers—what attacks each directive mitigates, common misconfigurations, and how to audit your headers locally.
By Huzaifa • 2026-10-15 • 6 min read
Why fast cryptographic hash functions like MD5, SHA-1, and SHA-256 serve different jobs in integrity checking, and why storing user passwords requires slow, salted algorithms like Argon2id, scrypt, or bcrypt.
By Huzaifa • 2026-10-11 • 6 min read
Learn how password entropy in bits is calculated, why strict symbol composition rules often backfire, how pattern-aware strength estimators work, and how to generate truly random credentials.
By Huzaifa • 2026-10-07 • 6 min read
Understand the three Base64URL segments of an RFC 7519 JSON Web Token, why decoding is not signature verification, and why live bearer tokens belong only in local client-side tools.
By Huzaifa • 2026-10-03 • 6 min read
Choose the right image format between JPEG, PNG, WebP, and SVG, clean bloated vector markup, and set explicit HTML attributes to improve Largest Contentful Paint and eliminate layout shifts.
By Huzaifa • 2026-09-29 • 6 min read
Build readable, reliable regular expressions using anchors, character classes, flags, and named capture groups—while avoiding catastrophic backtracking (ReDoS) in JavaScript and Node.js.
By Huzaifa • 2026-09-23 • 6 min read
Focus on the HTML head tags and crawler directives that search engines and social platforms actually use—and avoid the classic trap of blocking noindex pages inside robots.txt.
By Huzaifa • 2026-09-16 • 6 min read
Untangle broken query parameters, understand encodeURI vs. encodeURIComponent vs. URLSearchParams, and avoid seconds-versus-milliseconds Unix epoch bugs across APIs and webhooks.