ZeriFlow Journal

Security guides your team can ship this week

Actionable articles on TLS, headers, CSP, privacy, and practical hardening for modern web apps.

Tags

All #ai-code-security #ai-security #agencies #agency #alerting #alternatives #api-keys #api-security #api-automation #application-security #audit #automated-security #bfg-repo-cleaner #branch-protection #browser-security #check-security-headers #check-ssl-online #ci-cd-security-tools #ci-cd #clickjacking-protection #client-reports #cloud-security #code-scanning #code-security #comparison #compliance #content-security-policy #cookies #cors #cors-configuration #cron #csp #csp-directives #csp-header #csrf #cve #dangling-dns #database-security #dependabot #dependency-security #dependency-scanning #detectify-alternative #detectify-free-alternative #detectify-pricing-alternative #developer-security #developer-experience #developer-tools #devops #devops-security #devsecops #devsecops-tools #discord-webhook #dkim #dmarc #dns #dns-security #dnssec #ecommerce-security #ecommerce-site-security-checklist #email #email-authentication #email-security #express #frame-ancestors-csp #free-security-scan #free-ssl-check #free-website-security-scanner #freelance-security-audit #gdpr #git-security #gitguardian-alternative #github #github-actions #github-actions-security-tools #github-security #google-analytics #hardcoded-api-keys #hardcoded-secrets #headers #hsts #hsts-preload #http-headers-scanner-comparison #http-security-headers #http-strict-transport-security #httponly #https-configuration #improve-security #javascript-security #monitoring #mozilla-observatory-alternative #mozilla-observatory-tool #next-js #nextjs #next-js-security-tools #next-js-vulnerability-scanner #nextjs-app-router #nextjs-security-audit #nodejs #npm-audit #npm-cve #npm-vulnerabilities #npm-security #observatory-scanner #online-store-security #open-source #orm-security #owasp #owasp-2026 #owasp-top-10 #package-audit #parameterized-queries #payment-security #pci-dss #penetration-testing #pentest #permissions-policy #phishing-prevention #pipeline-security-scanner #pre-launch-security #preflight #prevent-clickjacking #privacy #pull-requests #rate-limiting #react #readme #redis #referrer-policy #repository-scanning #rest-api #saas-security-checklist #saas-security-tools #saas-security #samesite #sast-tools #secret-scanning #secrets-detection #secure-next-js-application #security-as-a-service-agency #security-audit #security-checklist #security-for-saas #security-headers #security-headers-checker-tool #security-headers-list #security-scan-tool #security-score #security-alerts #security-automation #security-badge #security-benchmark #security-gate #security-misconfiguration #security-monitoring #security-pipeline #security-reporting #security-scanner #security-scanning #securityheaders-com-alternative #server-security #session-security #shift-left-security #shift-left #shopify-security #slack-integration #snyk #spf #sql-injection #ssl-certificate-check #ssl-certificate-checker #ssl-check #ssl-checker-tool #ssl-security #startup-security-tools #startup-security #static-analysis #stripe #subdomain-takeover #supply-chain-security #supply-chain #tls #tls-1-3 #tls-best-practices #tls-check-tool #tls-configuration #trufflehog #upsell-security-clients #vulnerability-assessment #vulnerability-detection #vulnerability-scanner #vulnerability-scan #web-agency-security-service #web-app-security #web-application-vulnerabilities #web-security #web-security-scanner #web-security-checklist #website-scanner-like-detectify #website-security #website-security-check-alternative #website-security-checklist #website-security-scanner #website-security-score #website-vulnerability-scanner #website-audit #website-monitoring #white-label #white-label-security #wordpress #x-frame-options #xss #xss-protection #xss-prevention

Security Basics

SecurityHeaders.com Alternative: What It Checks and What You're Missing

Apr 14, 2026·6 min

SecurityHeaders.com is a great tool for checking HTTP security headers, but it only tells part of the story. Discover what it misses and how to get a complete security picture.

#headers

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Guides

How to Run a Website Security Audit in 2025: A Complete Guide

Mar 18, 2026·9 min

A website security audit identifies vulnerabilities before attackers do. Learn how to audit your site step by step — from TLS configuration to HTTP headers, DNS records, and privacy compliance.

#tls#headers#privacy

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Tutorials

How to Check if a Website Is Secure: 7 Quick Tests Anyone Can Do

Mar 15, 2026·7 min

Seven simple tests to verify any website's security in minutes. No technical background needed.

#dns#headers#tls

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Tutorials

Content Security Policy (CSP): A Practical Guide to Stop XSS Attacks

Mar 13, 2026·8 min

Learn how to configure Content Security Policy headers step by step. Prevent XSS attacks, data injection, and clickjacking with real-world examples.

#xss#headers#csp

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Hardening Guides

Permissions-Policy Header: The Complete Configuration Guide

Mar 1, 2026·7 min

Learn how the Permissions-Policy HTTP header works, which browser features to restrict, and how to configure it on Nginx, Apache, Cloudflare, and Next.js.

#headers

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Security Basics

What Are HTTP Security Headers and Why They Matter

Feb 22, 2026·8 min

HTTP security headers are your website's first line of defense. Learn what CSP, HSTS, X-Frame-Options, and other headers do — and how to configure them correctly.

#owasp#csp#headers

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Security Fundamentals

The 90-Minute Security Sprint for Vibe Coders

Jan 3, 2026·6 min

A practical, low-friction sprint to reduce real risk without slowing down product momentum.

#owasp#headers#csp

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Guides

Website Security Checklist 2025: 20 Things to Check Before Launch

Dec 1, 2025·12 min

Launching a website without a security review is like leaving your front door open. Use this 20-point checklist to catch vulnerabilities before attackers do.

#csp#privacy#owasp

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Hardening Guides

Referrer-Policy Header: What It Does and How to Set It Correctly

Sep 19, 2025·6 min

The Referrer-Policy header controls how much URL information your browser shares when users navigate away from your site. Learn which value to choose and how to set it up.

#headers#privacy

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