Free Security Headers Checker — FortifyNet

Check your HTTP security headers — CSP, HSTS, X-Frame-Options and more. Free, instant, with the exact values to deploy.

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News Detail — Website security news and updates from the FortifyNet team.
Article Detail — Step-by-step website security guides: SSL, DNS, security headers, email authentication and performance. Free 60-second scan included.
Articles — Practical step-by-step guides to fix SSL, security headers, DNS and Core Web Vitals issues, written for website owners. Browse the knowledge center.
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Features — 10 real-time checks — SSL/TLS, DNS, security headers, Core Web Vitals and dark-web exposure — each with step-by-step remediation. See every feature.
About — FortifyNet helps website owners find and fix SSL, DNS, header and performance issues with clear, jargon-free remediation. Learn who we are.
Tools Security Headers — Check your HTTP security headers — CSP, HSTS, X-Frame-Options and more. Free, instant, with the exact values to deploy.
Contact — Questions about your website security scan, a plan or partnership? Get in touch with the FortifyNet team — we reply fast.
Tools Mx Lookup — Look up MX records for any domain and validate your email server setup. Free, instant results with clear explanations.
Pricing — Start free with a full 60-second audit. Upgrade for scheduled scans, score history, PDF reports and continuous monitoring. See plans and pricing.
Share Grade — A shared security grade for a scanned website, verified by FortifyNet's 9-point audit.
Blog — Insights, how-tos and updates on website security, SSL, DNS, performance and more from the FortifyNet team. Read the latest articles.
Certificate — Verified security certificate for a website scanned with FortifyNet's 9-point audit.
Tools Hub — Free tools: DMARC checker, MX lookup, security headers scanner and more. Instant results, no signup required.
Tools — Free security tools from FortifyNet: DMARC checker, MX lookup, security headers scanner. Instant results, no signup.
Partners — Partner with FortifyNet to offer website security audits to your clients. Tools and pricing built for agencies and MSPs. Become a partner today.
Article Detail Redirect — Step-by-step website security guides: SSL, DNS, security headers, email authentication and performance. Free 60-second scan included.
Privacy Policy — How we collect, use and protect your personal data. GDPR compliant.
Tools Dmarc Checker — Check your domain's DMARC record, understand your policy and get exact steps to reach p=reject safely. Free and instant.
Cookie Policy — Which cookies we use, why, and how to manage your preferences. GDPR compliant.
Faq — Answers to common questions about website security, SSL certificates, DNS, our 60-second audit and how FortifyNet works.
State Of Website Security2026 — Original FortifyNet research: 88% of websites fail Core Web Vitals, 79% lack a CSP header, and the average site scores 71/100. Based on 7,000+ scans.