See what your business exposes to the internet
Run a free scan and uncover assets, misconfigurations, and risks you didn’t know existed.
What you’ll discover
Perimeter is built to reveal the kinds of external exposure smaller businesses often miss until they become a problem.
Unknown assets
See subdomains and connected assets you may not know are publicly visible.
Configuration gaps
Spot missing email protections, weak website settings, and common hygiene issues.
Actionable visibility
Understand what matters first, then unlock the full picture behind signup.
How it works
The experience is intentionally simple: surprise first, then clarity and control.
Enter your domain
Start with the domain your business already owns and controls.
We analyze public signals
Perimeter checks connected assets, email security, website settings, and HTTPS hygiene.
See what needs attention
Preview the key issues first, then unlock the full report and ongoing monitoring.
See enough to care. Then unlock control.
The free scan is designed to show something real and useful straight away: a score, a few clear findings, and a sense of what else may be hiding behind the surface.
• Plain-language summaries, not dense technical output
• One surprising insight to create momentum
• Full findings, explanations, and monitoring behind signup
Why businesses use Perimeter
Perimeter helps smaller businesses move from “I didn’t know this” to “I know what to do next.”
Discover what’s exposed
See connected assets, domains, and public signals your business may not realize are visible.
Understand risks quickly
Get clear, business-friendly findings instead of a wall of technical output.
Avoid technical guesswork
Know what matters first, what is likely harmless, and where to focus next.
Monitor one domain continuously
Track changes over time instead of relying on one-off checks.
Simple pricing for one domain
One plan. One domain. Full visibility, monitoring, explanations, and alerts when something changes.
Run your free scan now
Start with one domain and see what your business may be exposing to the internet.