CQwerty Shield

See the security grade for every website you visit. SSL, DMARC, and HTTP headers — one click.

CQwerty Shield brings domain security scanning directly into your browser. Click the extension icon on any website to get an instant security grade — from A+ to F — along with a detailed breakdown of what is configured correctly and what needs attention. **What it scans:** - SSL/TLS certificate validity, expiration, and configuration - DNS record analysis (SPF, DKIM, DMARC, DNSSEC) - HTTP security headers (HSTS, CSP, X-Frame-Options, and more) - Email authentication configuration - WHOIS registration details - Exposed sensitive files and directories **How it works:** 1. Visit any website. 2. Click the CQwerty Shield icon in your toolbar. 3. Get an instant security grade and summary for that domain. 4. Click through to the full report on cqwerty.com for deeper analysis. **Who is it for?** - Web developers verifying their own site's security posture - Security professionals doing quick reconnaissance - IT administrators auditing domains across their organization - Anyone who wants to know how secure a website is before trusting it **Key features:** - One-click scanning from any tab - Instant A+ to F security grade - Detailed breakdown across six security categories - Link to full interactive report on cqwerty.com - Free to use with no account required - Lightweight — no background resource usage when idle **Privacy:** CQwerty Shield only sends the domain name of the active tab to api.cqwerty.com when you click the extension icon. It does not track browsing history, collect personal data, or run in the background. See our full privacy policy for details. **About CQwerty Shield:** CQwerty Shield (cqwerty.com) is an AI-powered domain security platform used by developers, security teams, and IT professionals to scan, monitor, and improve the security posture of their web properties. ## Privacy Policy URL https://cqwerty.com/privacy