Know Your Attack Surface

See What Your Organization Exposes to the Internet

Check your organization's externally visible footprint using publicly available information: subdomains, exposed services, email and DNS security, TLS certificates, and lookalike domains.

A URL is also accepted. We will use the root/apex domain.

No port scanning, vulnerability testing, or attacks are performed. Max runtime of about 3 minutes.

Checking internet exposure

Discovering externally visible information for .

This usually takes two to three minutes.

Internet Exposure Check

Internet Exposure Snapshot

Results for

Partial results. The maximum scan time was reached. Results below contain the discovery completed within the available time.
—
Exposure score
— / 100
View findings
—
Subdomains
—
IP Addresses
—
Web Services
—
Technologies
—
Open Ports (public data)
—
Third-party Services

Key Findings

Findings are based on public data and lightweight checks; they should be validated before remediation.

Email Security

How well the domain is protected against spoofing and phishing in its name.

Domain & DNS Security

Registration health and DNS protections for the root domain.

Web & TLS Security

Certificates, HTTPS enforcement and browser security headers for each live website.

HostHTTPSCertificateTLSHeadersEdge / Server

Exposed Services

Open ports and software seen by public internet-scan datasets (Shodan InternetDB). DeepDefence did not port-scan your systems.

IPHostingOpen PortsSoftwarePotential CVEs
Potential Vulnerabilities

Matched from software versions, so some may be false positives or already patched. Prioritise entries on the CISA Known Exploited Vulnerabilities (KEV) list and those with a high EPSS (probability of exploitation in the next 30 days).

CVEExploitationEPSSAffected IPs

Subdomain Takeover

Subdomains that point to a cloud resource that no longer exists. Whoever claims it can serve content on your domain.

Lookalike Domains

Registered domains that resemble yours and could be used for phishing.

Blocklist Reputation

Third-party Services

SaaS and providers inferred from DNS verification records, SPF and CNAMEs.

Hosting

Where your IP addresses are hosted.

Externally Visible Assets

AssetTypeStatusFlags

Domain WHOIS / RDAP

DNS Records

HostRecordValue

Mail & TXT Records

HostRecordValue

IP / ASN Enrichment & Reverse DNS

IPASNDescriptionHostingCountryCIDRReverse DNS

Live HTTP(S) Services & Technology Stack

HostURLStatusTitleServerTechnologies

Full Subdomain Inventory

Other Scan Data

About this check: This is a point-in-time internet exposure check using publicly available information, public internet-scan datasets and lightweight DNS / HTTP verification. It is not a vulnerability assessment or penetration test.

Want to investigate these assets further?

DeepDefence can perform a deeper, authorized security assessment.

Request a Security Assessment