Browser Extension

Scan security headers on any page, including authenticated sessions.

Security scanning for pages
your server can't reach

Scan beyond just public pages. The SiteSecurityScore browser extension captures response headers directly from your browser, allowing you to scan security for pages behind login walls, VPNs, and internal networks. Practicing Security in depth!

Coming Soon to Chrome Web Store
SiteSecurityScore

Current Page

https://app.example.com/dashboard

24 response headers captured
Scan Headers

Captures headers from your browser session, including authenticated pages.

How it works

1

Install the extension

SiteSecurityScore will be available on the Chrome Web Store soon. One click install, no sign-up required.

2

Browse any page

Navigate to any website, including authenticated dashboards, admin panels, or internal tools.

3

Click Scan Headers

Open the extension popup and click Scan. The extension captures real response headers from your browser session.

4

View full results

A new tab opens with your complete security analysis. Same scores, grades, and recommendations as our online scanner.

What you get

Authenticated page scanning

Scan pages behind login walls that server-side scanners can't reach. Dashboards, admin panels, SaaS apps. If your browser can see it, we can scan it.

Full security analysis

Get the same comprehensive analysis as our online scanner: security headers, CSP evaluation, TLS configuration, cookie security, and an overall grade.

One-click scanning

No URL to type, no login required. Just click the extension icon on any tab and hit Scan. Results open in a new tab in seconds.

Real browser headers

Captures the actual response headers your browser received, not a simulated request. See exactly what your users' browsers see.

Same analysis as our online scanner

Security headers (CSP, HSTS, X-Frame-Options, and more)
Content Security Policy quality analysis
TLS/SSL certificate and configuration
Cookie security attributes
Letter grade (A+ to F)
Actionable fix recommendations

Perfect for

Internal dashboards

Scan admin panels, CMS backends, and internal tools that aren't publicly accessible.

SaaS applications

Check security headers on your authenticated SaaS accounts like CRMs, project management tools, and analytics platforms.

Pre-deployment audits

Verify security headers on staging environments and preview deployments before going live.

Coming Soon to Chrome Web Store

Free to use. No account required.

Scan any public site right now

While the extension is on its way, you can scan any publicly accessible website for security headers, TLS, DNS, and cookie issues using the online scanner.

Try the online scanner