ZeriFlow Journal
Actionable articles on TLS, headers, CSP, privacy, and practical hardening for modern web apps.
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Security is one of the few things that can kill a SaaS product overnight. A data breach, a failed security review from an enterprise prospect, or a vulnerability notice from a researcher — any of these can derail months of work. This guide covers the 10 security categories every SaaS needs and a practical tool for each.
Next.js is a powerful framework, but its flexibility also creates a wide attack surface — from API routes and server components to client-side rendering and third-party dependencies. Here are 8 tools every Next.js developer should be using.
Not all website security scanners are created equal. Some are free but shallow, others are deep but expensive. This guide compares 7 of the most widely used tools so you can pick the right one for your situation.
A website security audit does not need to be expensive or time-consuming if you follow a structured process. This step-by-step guide walks through everything from scope definition to remediation tracking, with the right tools for each phase.
Insecure cookies are one of the most common and exploitable misconfigurations in Node.js web applications. Understanding and correctly setting HttpOnly, Secure, and SameSite is non-negotiable for any session-handling application.
Security headers are the fastest way to harden a Next.js application. This guide covers all seven essential headers with production-ready configuration for both App Router and Pages Router.
TLS is the foundation of web security — but most developers configure it once and never look at it again. This guide covers the practical details: TLS 1.2 vs 1.3 differences, how to choose cipher suites, certificate validation mechanics, OCSP stapling, and the most common TLS misconfigurations that still show up in production.
The OWASP Top 10 is the most widely referenced framework for web application security risks. This guide covers all ten vulnerabilities with real-world examples, concrete testing methods, and specific fixes — not abstract theory.
Content Security Policy is the most powerful browser security mechanism available — and the most commonly misconfigured. This guide walks through every directive with real-world examples, shows you how to build a CSP that doesn't break your site, and explains how to use report-uri to catch violations before they become problems.