External Attack Surface Monitoring for Small Businesses
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Continuous visibility into what your business exposes to the internet.
Track your internet-facing attack surface before someone else maps it for you.
External attack surface monitoring is the ongoing process of identifying and tracking the public-facing systems your business exposes to the internet, such as domains, public IPs, open ports, exposed services, certificates, and other externally reachable signals.
PortWarden helps small businesses and lean IT teams do that continuously, without needing to build and maintain a full security toolchain first.
Start FreeWhat PortWarden helps you see
- Public IPs and domains you expose to the internet
- Open ports and exposed services
- Changes that appear after infrastructure drift
- Certificates and internet-facing inconsistencies
- What changed, what matters, and what to fix first
Point-in-time scans are useful. Continuous visibility is better.
A one-time port scan can tell you what is visible right now. External attack surface monitoring helps you track what changes over time so newly exposed services, configuration drift, and fresh findings do not surprise your team later.
Continuous checks
Catch newly exposed services, port changes, and internet-facing drift as your environment changes.
Prioritized findings
Move from raw exposure data to a practical view of what changed, what is risky, and what should be fixed first.
AI remediation help
Use built-in AI guidance to understand findings, ask follow-up questions, and validate remediation after changes are made.
Built for small businesses and lean IT teams that need clear visibility.
PortWarden is a strong fit when you need to monitor internet-facing assets, understand exposure changes, and work through remediation without hiring a full security team first.
Common use cases
- Monitoring public IPs and domains after infrastructure changes
- Tracking open ports and exposed services over time
- Giving non-specialists a clearer path from finding to fix
- Adding AI-guided remediation support to existing IT workflows
