Stop guessing. Know your web filters work.
FilterGuard runs continuous automated tests from inside your network and alerts you the moment a filter drifts — before threats get through.
How FilterGuard works
Deploy the agent
A lightweight agent runs inside your network. Outbound-only — no inbound ports required.
Automated test jobs run
FilterGuard sends test requests through your filter on a schedule you control.
Get instant alerts
When a filter drifts — blocked URLs pass or allowed URLs break — your team is notified immediately.
Built for security teams
Continuous validation
Tests run automatically on your schedule. No manual spot checks.
Drift detection
Know within minutes when your filter configuration changes unexpectedly.
Multi-channel alerts
Receive notifications via Teams, Syslog, Splunk, or any webhook endpoint.
Full audit trail
Every test result is recorded. Export history for compliance reviews.
Built with security as the baseline
Simple, transparent pricing
Start free. Upgrade anytime as your team grows.
Free
$0
forever
- 1 test agent
- 3 test configurations
- 2 team seats
- 100 URLs
- 5 proposals/month
- In-portal alert log only
- 7-day retention
- Community support
Starter
$49
per month
- 3 test agents
- 10 test configurations
- 5 team seats
- 500 URLs
- 20 proposals/month
- Email + Slack + Webhook alerts
- 30-day retention
- 14-day free trial
- Email support
Pro
$149
per month
- 10 test agents
- Unlimited test configurations
- 20 team seats
- Unlimited URLs
- Unlimited proposals
- All alert channels (Teams, Syslog, Splunk, PagerDuty)
- 90-day retention
- 14-day free trial
- Priority email support
Enterprise
Custom
contact us
- Unlimited everything
- Threat feed sync
- SSO / SAML (Clerk Enterprise Connections)
- 1 year+ retention
- Custom audit log retention
- Dedicated CSM
See FilterGuard in action
Request a demo and we'll show you how continuous filter validation works for your environment.
- Personalized demo
- Custom environment assessment
- No commitment required