External Attack Surface · EASM

See what an attacker sees

Every subdomain, port, technology and exposure you own — discovered, fingerprinted and correlated to CVEs.

The problem

You cannot defend assets you do not know exist. Shadow infrastructure and forgotten subdomains are where breaches start.

What Shadow Span does

Four-source subdomain enumeration, port scanning, HTTP/TLS fingerprinting, certificate-transparency monitoring and proxy-aware CVE correlation — so you stop chasing CVEs in your CDN.

External Attack Surface · EASM in Shadow Span

Discovered internet-facing assets, ranked by risk

What you get

Subdomain enumeration

subfinder + crt.sh + DNS brute-force + Wayback, merged and deduplicated.

Service + tech fingerprint

nmap and HTTP fingerprinting detect stack, proxy/WAF and OS.

Posture scoring

DNS, TLS, headers, email, ports, subdomain-takeover and code-leak scorers.

Proxy-aware CVE match

CVEs matched to your detected stack, not the CDN sitting in front of it.

Certificate-transparency watch

New certificates for your domains, in real time.

Continuous re-scan

Nightly refresh of every active asset and its risk score.

How it works

01

Register a root domain

Declare what you own; no fallbacks to unrelated domains.

02

Enumerate + fingerprint

Four enumeration sources plus port and HTTP fingerprinting.

03

Score + correlate

Per-asset posture scoring and proxy-aware CVE correlation.

04

Risk-rank

Assets ranked by exposure, exploitability and KEV.

Why Shadow Span

EASM that feeds the same attack-path graph as your cloud and AppSec — and pairs with DAST so "potential" exposures become "confirmed exploitable."

ReplacesDetectifyCensys ASMIntruder
Standards & sources
Certificate TransparencyShodan InternetDB

One platform. Not ten point tools.

See External Attack Surface · EASM alongside the rest of your security program — correlated, not siloed.