The product
by Assetnote
External attack surface management platform with continuous asset discovery
The closest Assetnote ASM alternatives are ctlogs.dev, Criminal IP Security Scanning Service and Attaxion. Picking an Assetnote ASM alternative comes down to fit: External Attack Surface Management coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
Closest 48 alternatives shownClosest matches: ctlogs.dev, Criminal IP Security Scanning Service, AttaxionPage updated Nov 2026
The product
by Assetnote
External attack surface management platform with continuous asset discovery
Need the answer fast? Best Attack Surface Management Solutions for Business picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.See the shortlist
Assetnote ASM is a commercial External Attack Surface Management solution made by Assetnote. The closest matches by shared tags and NIST CSF 2.0 coverage are ctlogs.dev, Criminal IP Security Scanning Service, Attaxion, DarkInvader EASM Platform, and DDactic Attack Surface Discovery. All 48 alternatives on this page are ranked the same way.
These 8 solutions overlap most with Assetnote ASM. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
Fast Certificate Transparency search and JSON API for subdomain reconnaissance.
Key features: Real-time Certificate Transparency Search, Automated Subdomain Enumeration, High-Performance REST JSON API, Wildcard & Fingerprint Matching, SSL/TLS Certificate History Tracking
View ctlogs.devctlogs.dev alternativesAssetnote ASM vs ctlogs.dev
Internet-connected asset search engine with vulnerability scanning capabilities
Key features: 10 listed. See them on the Criminal IP Security Scanning Service page.
View Criminal IP Security Scanning ServiceCriminal IP Security Scanning Service alternativesAssetnote ASM vs Criminal IP Security Scanning Service
Agentless EASM platform for asset discovery, exposure mgmt & risk reduction.
Key features: 10 listed. See them on the Attaxion page.
DarkInvader is an external attack surface management platform that provides continuous discovery, monitoring, and assessment of an organisation's internet-facing assets. The platform automatically maps an organisation's digital footprint, including domains, subdomains, IP addresses, cloud services, SaaS platforms, and APIs, to identify shadow IT, forgotten infrastructure, and unmanaged assets. It provides geographical mapping of hosting locations to support compliance and third-party risk assessment. DarkInvader continuously monitors discovered assets for configuration changes, new exposures, and emerging vulnerabilities, tracking historical modifications and issuing real-time alerts when high-risk changes are detected. Prioritisation logic is applied to highlight exposures most likely to be exploited, based on asset criticality and attacker relevance. The assessment stage scans infrastructure and web applications using a dual-engine vulnerability scanning approach to identify weaknesses, misconfigurations, and emerging exposures, while automatically tracking remediation status over time and producing vulnerability reports for technical and executive audiences. The platform also includes an intelligence stage that analyses OSINT from the surface and dark web using AI to detect credential exposure, patterns, and emerging risks across digital, social, supplier, and human attack vectors.</description> <parameter name="summary">Continuous external attack surface management with AI-driven asset discovery and monitoring
Key features: 10 listed. See them on the DarkInvader EASM Platform page.
Scans domains to discover attack surface, vulnerabilities, and generate hardening
Key features: 10 listed. See them on the DDactic Attack Surface Discovery page.
View DDactic Attack Surface DiscoveryDDactic Attack Surface Discovery alternativesAssetnote ASM vs DDactic Attack Surface Discovery
AI-powered EASM platform for digital asset discovery and monitoring.
Key features: 5 listed. See them on the Cylana EASM page.
View Cylana EASMCylana EASM alternativesAssetnote ASM vs Cylana EASM
AI-enhanced EASM platform for external attack surface discovery and monitoring.
Key features: 10 listed. See them on the TRaViS page.
Continuous external attack surface monitoring that shows what changed between scans.
Key features: 9 listed. See them on the SurfaceDiff page.
View SurfaceDiffSurfaceDiff alternativesAssetnote ASM vs SurfaceDiff
Fast Certificate Transparency search and JSON API for subdomain reconnaissance.
Internet-connected asset search engine with vulnerability scanning capabilities
Agentless EASM platform for asset discovery, exposure mgmt & risk reduction.
Scans domains to discover attack surface, vulnerabilities, and generate hardening
AI-powered EASM platform for digital asset discovery and monitoring.
AI-enhanced EASM platform for external attack surface discovery and monitoring.
Continuous external attack surface monitoring that shows what changed between scans.
Agentless external attack surface monitoring with continuous change detection.
Independent security scoring and attestation for third-party managed web apps
Cloud platform for continuous visibility & mgmt of external attack surfaces
AI-powered attack surface management platform for cybersecurity monitoring
AI-powered platform for continuous attack surface discovery and pentesting
Discovers and monitors external-facing assets and vulnerabilities
External attack surface mgmt platform for discovering & monitoring assets
Internet intelligence platform for asset discovery and attack surface mapping
SaaS platform for attack surface management and vulnerability detection
EASM platform for continuous monitoring of internet-exposed assets & vulnerabilities
Attack surface management platform for monitoring vulnerabilities and breaches
ImmuniWeb Discovery is an attack surface management platform that continuously monitors an organization's external digital assets for security vulnerabilities, misconfigurations, and threats across domains, applications, cloud resources, and the dark web.
External attack surface mgmt with automated pentesting and validation
SOCRadar Attack Surface Management is an EASM platform that continuously discovers, monitors, and assesses internet-facing digital assets for vulnerabilities and security risks.
Automated ASM tool for multi-cloud environments with continuous asset discovery
External attack surface mgmt with asset discovery and on-demand pentesting
Active attack surface mgmt solution for discovering & remediating unknown risks
Internet intelligence platform for asset discovery and threat analysis
External attack surface management platform for asset discovery and vuln mgmt
AI-driven EASM platform for discovering and monitoring external-facing assets
External attack surface management platform for asset discovery and risk detection
EASM platform with integrated CTI for asset discovery and vulnerability mgmt
Discovers, monitors, and assesses external attack surface assets continuously.
Continuous discovery, monitoring, and testing of external assets and exposures
EASM platform with continuous asset discovery and threat intelligence context
Customizable ASM platform for asset discovery, monitoring, and enrichment
EASM platform that discovers, attributes, and actively validates external assets and risks
Attack surface management platform for asset discovery and vulnerability monitoring
ASM platform for discovering, monitoring, and prioritizing external/internal assets
CTI-driven external attack surface mgmt with threat exposure prioritization
ASM platform that scans external attack surfaces hourly for vulnerabilities
Cloud-based EASM platform for discovering internet-facing assets & exposures
Platform for continuous attack surface discovery, monitoring, and remediation
Continuously maps digital footprint, identifies exposures & validates exploitability
External attack surface management platform with AI-powered risk assessment
External attack surface management platform for asset discovery and monitoring
Monitors external attack surface to identify assets and vulnerabilities
External attack surface monitoring with threat intel and brand protection
External attack surface management platform with threat intelligence
Common questions when weighing alternatives to Assetnote ASM.
The closest matches to Assetnote ASM by shared tags and NIST CSF 2.0 coverage are ctlogs.dev, Criminal IP Security Scanning Service, Attaxion, DarkInvader EASM Platform, and DDactic Attack Surface Discovery. All of them are External Attack Surface Management products.
This page shows 48 alternatives to Assetnote ASM, all in the External Attack Surface Management category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
Assetnote ASM is a commercial External Attack Surface Management product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
Assetnote ASM is a External Attack Surface Management product in the Exposure & Vulnerability Management category. You can compare it with the 48 other External Attack Surface Management products on this page.
View DarkInvader EASM PlatformDarkInvader EASM Platform alternativesAssetnote ASM vs DarkInvader EASM Platform
