Platform
From unknown exposure to fixed, in one continuous loop.
Perimeter follows a single workflow: Visibility → Context → Validation → Remediation. Every stage narrows the noise so the next one is more precise.
01 · Visibility
Know what you own.
Perimeter continuously enumerates your root domains, subdomains, IP addresses, and exposed services, and diffs every sweep against the last. New assets are flagged the moment they appear. No more forgotten staging servers.
- Continuous subdomain enumeration
- Change detection against yesterday's state
- Domains → subdomains → IPs → services, mapped
- Subdomain takeover detection for dangling DNS
02 · Context
Understand it before you judge it.
Before running a single vulnerability check, Perimeter fingerprints every asset: its frameworks, languages, web servers, and cloud providers, alongside its TLS posture, security headers, and open ports.
- Technology detection from headers, favicons, and markup
- TLS hardening and certificate expiry
- Missing security headers (HSTS, CSP, and more)
- High-risk open ports and exposed sensitive files
03 · Validation
Prove what's actually exploitable.
Perimeter's validation engine reads each asset's fingerprint and runs only the DAST checks that apply. A Laravel app on Nginx gets Laravel, PHP, and Nginx checks, not ten thousand irrelevant ones.
- Fingerprint-driven template selection
- Low-signal findings filtered before they reach you
- Medium, high, and critical issues surfaced with evidence
- Exact endpoint for every finding
04 · Remediation
Get it to the right person, with the full story.
Findings arrive as a chronological narrative: the new subdomain, the technology detected, the scan that ran, and the exposure it found. They're routed to the team that owns the project, with clear steps to fix them.
- Operational timeline of every change and finding
- Project-scoped ownership and role-based access
- Remediation guidance written for developers
- Security scorecards for leadership
Data model
Everything has an owner.
Perimeter organizes your attack surface as a relational hierarchy, not a flat list of domains, so access, alerts, and accountability follow the structure of your business.
- Organization
- Project
- Assets
- Scans
- Findings
- Timeline
What's next
Where Perimeter is heading.
Our long-term roadmap moves security even earlier in the lifecycle.
Notifications everywhere
Event timelines delivered as clean cards in Slack, Microsoft Teams, and Discord.
CI/CD integration
Stop exposures before they ever reach your external attack surface.
AI-assisted remediation
Suggested fixes for specific findings, prepared as pull requests.
See your perimeter the way an attacker does.
Perimeter is onboarding early teams now. Tell us about your infrastructure and we'll set you up.
Request early access