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.
SecurityA practical guide to cookie security for website teams, covering HttpOnly, Secure, SameSite, session risk, CSRF and XSS tradeoffs, and how to verify real fixes in the browser. Learn what the flags do, what they do not do, and which mistakes scanners catch most often.
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.
Best PracticesLaunching WordPress without a hardening checklist is how small gaps turn into real exposure. This guide covers 15 practical checks to reduce attack surface, tighten access, and verify the site before it goes live.
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.
Best PracticesWebsite security in 2026 is still defined by familiar weaknesses such as missing headers, exposed paths, weak cookie settings, and inconsistent re-testing. This article explains the most common public-facing risks, why teams still miss them, and what stronger remediation discipline looks like.