SecLens
Full HTTP security header audit — CSP, HSTS, CORS, SRI, and 15+ checks with live DevTools panel
As of June 2026, SecLens has — users in the Developer Tools category.
Usersno change0%
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Ratingno change0%
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— reviews
Reviewsno change0%
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Version
1.0.0
Manifest V3
History
1 snapshotsTracking since May 24, 2026.
Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| May 24, 2026 | — | — | — | 1.0.0 |
| Now | — | — | — | 1.0.0 |
Permissions & access
- Permissions
- webRequeststoragetabs
- Host access
- <all_urls>
Screenshots
About
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.
Technical
- Version
- 1.0.0
- Manifest
- V3
- Size
- 103KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- fakmijdhhmibfhimojfjnminjimlfcef
- Developer ID
- ufbff9f0b7d2f969eedca8376383a5f9d
- Developer Email
- [email protected]
- Created
- May 23, 2026
- Last Updated (Store)
- May 23, 2026
- Last Scraped
- Jun 14, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- https://swasctl.github.io/sec-lens/privacy-policy.html
Data sourced from the Chrome Web Store · last verified Jun 14, 2026.