Security guide
A website security grade gives you an instant, letter-score summary of how well your site's observable security controls are configured — in the same way a credit score summarises financial health.
CyberLens AI produces a grade in seconds with no signup required. This guide explains what the grade means, how to improve it, and how to confirm the improvement with a re-scan.
No account or sign-up required. Enter your website URL — production, staging, or a Vercel preview link all work. The scanner checks TLS configuration, HTTP security headers, cookie security flags, and browser protection settings in seconds.
The scan returns a letter grade (A through F), a numeric score, and a ranked findings list. High and Critical findings carry the most grade weight. Most C and D grade sites have one or two fixable header gaps responsible for the majority of lost points.
Most grade-lowering findings are HTTP headers — a single line in vercel.json, Nginx, or an Express Helmet call. Add HSTS, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy in that order, then redeploy and re-scan to confirm the grade improvement.
A website security grade is a letter score (A through F) that summarises how well a site's publicly observable security controls are configured. CyberLens AI calculates it from HTTPS and TLS posture, HTTP security headers, cookie security flags, and browser protection settings.
Most C and D grade sites can reach a B or better in under an hour. The four highest-impact header changes — HSTS, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy — are each one line of config in vercel.json, Nginx, or an Express Helmet call.
A high grade means your site passes the checks CyberLens AI runs — configuration, headers, and TLS. It does not cover application-layer vulnerabilities like SQL injection, broken authentication, or CSRF. Use the grade as one layer of your security posture.
CyberLens AI guidance is informed by established security standards and public vulnerability intelligence.