Expert articles on web security, vulnerabilities, and best practices
GuidesSecurity headers protect transport and content execution; Permissions-Policy restricts browser features like camera and geolocation. Learn how they differ and when to test both on Vulnify.
GuidesCAA records tell certificate authorities which CAs may issue TLS certificates for your domain. Learn what issue and issuewild mean, why missing CAA matters, and how to review policy with Vulnify.
GuidesDNSBL listings can block mail and damage domain reputation overnight. Learn how public blacklists work, when to check them, and how to investigate listings with Vulnify free tools.
GuidesSubdomain takeover happens when DNS still points at a service you no longer control. Learn how attackers abuse dangling CNAMEs and how to find them before someone else claims your subdomain.
GuidesA practical guide to choosing between a penetration test and an automated website vulnerability scanner. Learn what each one is good at, where each one falls short, and when mature teams should use both.
GuidesA plain-English guide to what website teams are generally responsible for under GDPR, from personal data scope and controller versus processor roles to vendors, transparency, breaches, and security expectations.
GuidesUnderstand what a vulnerability scanner is, how it works, what it can and cannot detect, and how to use it to improve website security over time.
GuidesCompare SAST vs DAST vs SCA to understand what each scanner checks, where each one fits in the pipeline, and which one you should start with first.
GuidesGDPR Article 32 is about the security of processing, not empty compliance language. Learn how Article 32 maps to real website and web application controls, where automated testing fits, and what evidence web teams should keep.
GuidesPCI DSS and web application security overlap more than many teams expect. Learn what PCI DSS actually requires at a high level for payment-related web apps, where scans fit, what they do not prove, and how to build a stronger testing and evidence workflow.