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23 articles on JSON, APIs, encoding, and modern developer tooling.

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Sumit

Full Stack MERN Developer

Building developer tools and SaaS products

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Sumit is a Full Stack MERN Developer focused on building reliable developer tools and SaaS products. He designs practical features, writes maintainable code, and prioritizes performance, security, and clear user experience for everyday development workflows.

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brute forcerate limitingauthentication security

Brute Force Protection Systems: Rate Limiting, Account Locking, and Adaptive Defense Architecture

A production-grade guide to designing brute force protection systems using rate limiting, account lockouts, IP intelligence, and adaptive authentication defenses.

Aug 12, 202411 min read
jwtsecurityauthentication

JWT Security Vulnerabilities and Best Practices in Production Systems

A deeply technical, production-focused guide to JWT security vulnerabilities, attack vectors, and best practices for designing, validating, and operating secure token-based authentication systems.

Jul 20, 20248 min read
password generationsecurity architectureweb security

Client-Side vs Server-Side Password Generation: Security Tradeoffs, Threat Models, and Implementation Patterns

A deep technical comparison of client-side and server-side password generation, including threat models, attack surfaces, cryptographic guarantees, and production architecture decisions.

Jun 18, 202410 min read
url encodingseo technicalcrawlability

URL Encoding SEO Best Practices: Ensuring Crawlability, Indexing, and Performance at Scale

A deep technical guide on URL encoding SEO best practices covering crawlability, indexing, canonicalization, performance, and how encoding mistakes impact search engine behavior and API-driven architectures.

May 18, 202411 min read
url encodingdebuggingbackend engineering

Debugging URL Encoding Issues in Production Systems

A production-grade deep dive into diagnosing, debugging, and fixing URL encoding issues across distributed systems, APIs, CDNs, and browsers with real-world patterns, security implications, and performance strategies.

May 12, 20248 min read
password policyauthenticationsecurity engineering

Password Policy Engineering: Designing Secure, Usable, and Scalable Authentication Rules

A comprehensive technical guide to designing modern password policies that balance security, usability, and scalability using real-world attack data and engineering principles.

Apr 10, 20249 min read
url](https://images.unsplash.com/photo-1555949963-aa79dcee981c%22,%22tags%22:[%22url) encodingpercent encodingweb security

URL Encoder/Decoder: Deep Technical Guide for Secure and Correct Web Data Transmission

A production-grade, deeply technical guide to URL encoding and decoding, covering RFC standards, edge cases, performance considerations, security pitfalls, and real-world implementation strategies for senior engineers.

Mar 15, 202412 min read
ip lookupgeo ipnetworking

IP Address Lookup: Deep Technical Guide for Accurate Geo-IP, Security Intelligence, and High-Performance Systems

A production-grade, deeply technical guide to IP address lookup covering geo-IP resolution, network intelligence, security use cases, architecture design, performance optimization, and real-world implementation pitfalls.

Mar 15, 202412 min read
password securitycryptographydevops

Cryptographically Secure Password Generation: Architecture, Entropy, and Production-Grade Implementation

A deep technical guide to building and using a cryptographically secure password generator, covering entropy, RNG design, security pitfalls, and scalable production architecture.

Mar 12, 202412 min read
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