Attack surface management built for MSPs
Resensor maps and monitors every client's internet-facing footprint from one console, then ranks what is actually exploitable with CISA KEV and FIRST EPSS. See each client's exposure the way an attacker does, before they do.
One console for every client's external risk
You are accountable for security across a portfolio of clients, each with a footprint that changes every week. Resensor keeps watch so nothing drifts out of view.
Every client, side by side
Add each client's domains and monitor all of their external surfaces from a single login. Targets, scans, and findings stay scoped per client organization.
Continuous, not point-in-time
Resensor re-scans on a schedule and alerts you the moment a new exposure, an expiring certificate, or a freshly opened service appears.
Prioritized by real risk
Findings are ranked with CISA KEV and FIRST EPSS, so your team fixes what attackers are exploiting right now instead of triaging a ten thousand line export.
Evidence clients trust
Every finding maps to SOC 2, ISO 27001:2022, and PCI DSS v4.0 controls, turning a scan into audit-ready proof you can hand straight to the client.
What Resensor watches across every client
- Domains, subdomains, IPs, and certificates tied to each client
- Exposed services and open ports on the public perimeter
- Expiring or weak TLS certificates before they break or get exploited TLS
- Email spoofability across SPF, DKIM, and DMARC posture DMARC
- Typosquatted and look-alike domains registered against your clients LOOKALIKE
- Known-exploited vulnerabilities from CISA KEV and high-EPSS CVEs KEV EPSS
- Credentials and assets surfaced in known breach data BREACH
- New assets the client forgot about, discovered automatically
From client domains to actionable alerts
Add your clients
Enter each client's root domains. Resensor discovers the assets connected to them automatically, including the ones nobody documented.
Resensor scans continuously
We map the surface, fingerprint services, and score every finding by exploitability, then keep re-checking on a schedule.
You get the alerts that matter
New exposures land in your inbox and your connectors, ready to action or hand to the client with the evidence attached.
Straightforward, per-domain plans
Start free, then scale by the number of client domains you monitor. Managing a larger estate? Talk to us about Enterprise.
Continuous monitoring for a small estate, up to 5 domains.
Right for a focused book of clients or a first rollout.
The everyday plan for MSPs covering a growing client base.
Volume coverage and a dedicated deployment for large MSSPs.
See your first client's attack surface free
Add a client domain and get a prioritized map of their external exposure in minutes. No credit card to start.
Start freeCommon questions
What is external attack surface management (EASM)?
External attack surface management is the continuous discovery and monitoring of everything an organization exposes to the internet, including domains, subdomains, IP addresses, certificates, and services, so you can see and fix what an attacker could reach before they do.
Why do MSPs need attack surface management?
MSPs carry the security burden for many clients, each with their own internet-facing footprint that changes constantly. Attack surface management gives you one console to watch every client's exposure, get alerted when something new appears, and prioritize remediation by real exploitability.
How is Resensor different from a vulnerability scanner?
A vulnerability scanner checks assets you already know about. Resensor first discovers the internet-facing assets tied to each client, including the ones nobody remembered, then ranks findings with CISA KEV and FIRST EPSS so you act on what attackers are exploiting now.
Can I monitor multiple clients from one account?
Yes. Each client is scoped to its own organization, so their targets, scans, and findings stay separate while you manage everything from a single login.
How much does Resensor cost?
Scout is $115 per month for up to 5 monitored domains. Pulse is $399 per month for up to 50 domains and Sentinel is $899 per month for up to 100 domains. MSPs managing larger client estates can talk to us about Enterprise.