🔐 Security Header Monitoring

Get alerted when your
security headers change

A single deployment can silently remove your HSTS policy, CSP rules, or X-Frame-Options header. HeaderGuard monitors your headers 24/7 and alerts you the moment anything changes.

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$9/month · Early access pricing — locked in forever

Check your security headers now → Free Security Headers Checker

One Deployment Can Undo All Your Security Work

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Instant change alerts

Email the moment any header appears, disappears, or changes value — not hours later when a customer finds it.

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All 6 headers monitored

HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy — the full security surface.

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Grade history

See how your security posture changes over time. Know whether each deploy improved or degraded your header grades.

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Monitor up to 10 domains

Cover your main domain, subdomains, staging environments, and client sites — all under one subscription.

Simple, Honest Pricing

$9/month

🎉 Early access pricing — locked in forever

Monitor up to 10 domains
Instant email alerts on any header change
All 6 security headers tracked
Letter grade history per domain
Checks every 24 hours
Cancel anytime

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