SecLens

by Swastiktube007 · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Full HTTP security header audit — CSP, HSTS, CORS, SRI, and 15+ checks with live DevTools panel

Users

−2 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#237K

#198K among extensions

Version

1.0.0

updated 23 May 2026

Users

monthly, 5 months

Latest, 16 Oct 2026: 6 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About SecLens

SecLens audits the HTTP security headers of any website you visit — instantly, in your browser. Open the popup for a quick summary, or the DevTools panel (F12 → SecLens) for a full real-time breakdown as the page loads. Checks include: - Content Security Policy (CSP) — parsed and evaluated using Google's csp-evaluator library - HSTS — max-age, includeSubDomains, preload - CORS misconfiguration detection - Subresource Integrity (SRI) — grouped by registered domain - X-Content-Type-Options, X-Frame-Options - Referrer-Policy, Permissions-Policy - COOP, COEP, CORP - Cache-Control on API responses - Tech stack info disclosure (Server header) - Report-Only CSP detection - Multiple conflicting CSP headers Built for developers and security engineers who want instant visibility into a site's header posture without opening Burp or running a separate scanner. No data leaves your browser. No accounts. No tracking.