# Shodan alternatives and competitors (2026)

The closest Shodan alternatives are [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev), [SOC Radar DNS Monitoring](https://cybersectools.com/tools/soc-radar-dns-monitoring) and [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management). Picking a Shodan 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 shown. Closest matches: ctlogs.dev, SOC Radar DNS Monitoring, Outpost24 External Attack Surface Management.

## The product

[Shodan](https://cybersectools.com/tools/shodan)

A search engine for the Internet of Things (IoT) that discovers and monitors devices connected to the internet.

Category: [Exposure & Vulnerability Management](https://cybersectools.com/categories/exposure-vulnerability-management) · Pricing model: Free

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.

## Shodan alternatives and competitors

Shodan is a free [External Attack Surface Management](https://cybersectools.com/categories/external-asm) solution. The closest matches by shared tags and NIST CSF 2.0 coverage are [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev), [SOC Radar DNS Monitoring](https://cybersectools.com/tools/soc-radar-dns-monitoring), [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management), [StrikeOne Attack Surfa](https://cybersectools.com/tools/strikeone-attack-surfa), and [Hadrian Agentic AI](https://cybersectools.com/tools/hadrian-agentic-ai). All 48 alternatives on this page are ranked the same way.

Want a free option? See [free and open source exposure & vulnerability management solutions](https://cybersectools.com/free), plus free picks in other categories.

## The closest Shodan alternatives

These 8 solutions overlap most with Shodan. Each one says what the product does and, when the overlap is big enough, which capabilities it shares.

### 1. [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev)

Fast Certificate Transparency search and JSON API for subdomain reconnaissance.

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: Real-time Certificate Transparency Search, Automated Subdomain Enumeration, High-Performance REST JSON API, Wildcard & Fingerprint Matching, SSL/TLS Certificate History Tracking

[ctlogs.dev alternatives](https://cybersectools.com/alternatives/ctlogsdev) · [Shodan vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-shodan)

### 2. [SOC Radar DNS Monitoring](https://cybersectools.com/tools/soc-radar-dns-monitoring)

SOCRadar DNS Monitoring provides real-time monitoring of DNS infrastructure with automated discovery, record change alerts, and detection of DNS-based security threats.

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

[SOC Radar DNS Monitoring alternatives](https://cybersectools.com/alternatives/soc-radar-dns-monitoring) · [Shodan vs SOC Radar DNS Monitoring](https://cybersectools.com/compare/shodan-vs-soc-radar-dns-monitoring)

### 3. [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management)

Cloud platform for continuous visibility & mgmt of external attack surfaces

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: 10 listed. See them on the [Outpost24 External Attack Surface Management page](https://cybersectools.com/tools/outpost24-external-attack-surface-management#features).

[Outpost24 External Attack Surface Management alternatives](https://cybersectools.com/alternatives/outpost24-external-attack-surface-management) · [Shodan vs Outpost24 External Attack Surface Management](https://cybersectools.com/compare/outpost24-external-attack-surface-management-vs-shodan)

### 4. [StrikeOne Attack Surfa](https://cybersectools.com/tools/strikeone-attack-surfa)

AI-powered attack surface management platform for cybersecurity monitoring

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: 5 listed. See them on the [StrikeOne Attack Surfa page](https://cybersectools.com/tools/strikeone-attack-surfa#features).

[StrikeOne Attack Surfa alternatives](https://cybersectools.com/alternatives/strikeone-attack-surfa) · [Shodan vs StrikeOne Attack Surfa](https://cybersectools.com/compare/shodan-vs-strikeone-attack-surfa)

### 5. [Hadrian Agentic AI](https://cybersectools.com/tools/hadrian-agentic-ai)

AI-powered platform for continuous attack surface discovery and pentesting

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: 10 listed. See them on the [Hadrian Agentic AI page](https://cybersectools.com/tools/hadrian-agentic-ai#features).

[Hadrian Agentic AI alternatives](https://cybersectools.com/alternatives/hadrian-agentic-ai) · [Shodan vs Hadrian Agentic AI](https://cybersectools.com/compare/hadrian-agentic-ai-vs-shodan)

### 6. [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management)

Discovers and monitors external-facing assets and vulnerabilities

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: 10 listed. See them on the [Microsoft Defender EASM page](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management#features).

[Microsoft Defender EASM alternatives](https://cybersectools.com/alternatives/microsoft-defender-external-attack-surface-management) · [Shodan vs Microsoft Defender EASM](https://cybersectools.com/compare/microsoft-defender-external-attack-surface-management-vs-shodan)

### 7. [Halo Security Attack Surface Management](https://cybersectools.com/tools/halo-security-attack-surface-management)

External attack surface mgmt platform for discovering & monitoring assets

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: 10 listed. See them on the [Halo Security Attack Surface Management page](https://cybersectools.com/tools/halo-security-attack-surface-management#features).

[Halo Security Attack Surface Management alternatives](https://cybersectools.com/alternatives/halo-security-attack-surface-management) · [Shodan vs Halo Security Attack Surface Management](https://cybersectools.com/compare/halo-security-attack-surface-management-vs-shodan)

### 8. [Assetnote ASM](https://cybersectools.com/tools/assetnote-asm)

External attack surface management platform with continuous asset discovery

[External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial

Key features: 10 listed. See them on the [Assetnote ASM page](https://cybersectools.com/tools/assetnote-asm#features).

[Assetnote ASM alternatives](https://cybersectools.com/alternatives/assetnote-asm) · [Shodan vs Assetnote ASM](https://cybersectools.com/compare/assetnote-asm-vs-shodan)

## The closest 48 products like Shodan

The 8 above, plus:

- [Censys Attack Surface Management](https://cybersectools.com/tools/censys-attack-surface-management): Internet intelligence platform for asset discovery and attack surface mapping (Commercial)
- [Risksurface](https://cybersectools.com/tools/risksurface): SaaS platform for attack surface management and vulnerability detection (Commercial)
- [QuimeraX External Attack Surface Management](https://cybersectools.com/tools/quimerax-external-attack-surface-management): EASM platform for continuous monitoring of internet-exposed assets & vulnerabilities (Commercial)
- [Intruder Attack Surface Management](https://cybersectools.com/tools/intruder-attack-surface-management): Attack surface mgmt platform with vuln scanning and cloud security features (Commercial)
- [RiskXchange Attack Surface Management](https://cybersectools.com/tools/riskxchange-attack-surface-management): Attack surface management platform for monitoring vulnerabilities and breaches (Commercial)
- [Mandiant Attack Surface Management](https://cybersectools.com/tools/mandiant-attack-surface-management): Discovers and monitors external internet assets for exposures and vulnerabilities (Commercial)
- [ImmuniWeb® Discovery](https://cybersectools.com/tools/immuniweb-discovery): 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. (Commercial)
- [Pentera Surface](https://cybersectools.com/tools/pentera-surface): External attack surface mgmt with automated pentesting and validation (Commercial)
- [SOC Radar Attack Surface Management](https://cybersectools.com/tools/soc-radar-attack-surface-management): SOCRadar Attack Surface Management is an EASM platform that continuously discovers, monitors, and assesses internet-facing digital assets for vulnerabilities and security risks. (Commercial)
- [Matos Automated Attack Surface Management](https://cybersectools.com/tools/cloudmatos-automated-attack-surface-management): Automated ASM tool for multi-cloud environments with continuous asset discovery (Commercial)
- [Synack Attack Surface Discovery](https://cybersectools.com/tools/synack-attack-surface-discovery): External attack surface mgmt with asset discovery and on-demand pentesting (Commercial)
- [Palo Alto Networks Cortex Xpanse](https://cybersectools.com/tools/palo-alto-networks-cortex-xpanse): Active attack surface mgmt solution for discovering & remediating unknown risks (Commercial)
- [Censys Internet Intelligence Platform](https://cybersectools.com/tools/censys-internet-intelligence-platform): Internet intelligence platform for asset discovery and threat analysis (Commercial)
- [Censys AI-Driven Solutions](https://cybersectools.com/tools/censys-ai-driven-solutions): AI-driven internet scanning platform for asset discovery and threat hunting (Commercial)
- [Akamai DNS Posture Management](https://cybersectools.com/tools/akamai-dns-posture-management): DNS security posture management across multicloud and on-prem environments (Commercial)
- [Anomali Attack Surface Management](https://cybersectools.com/tools/anomali-attack-surface-management): External attack surface management platform for asset discovery and vuln mgmt (Commercial)
- [Siemba EASM](https://cybersectools.com/tools/siemba-easm): AI-driven EASM platform for discovering and monitoring external-facing assets (Commercial)
- [CyberXTron ShadowSpot](https://cybersectools.com/tools/cyberxtron-shadowspot): External attack surface management platform for asset discovery and risk detection (Commercial)
- [Axur Unified EASM + CTI](https://cybersectools.com/tools/axur-unified-easm-cti): EASM platform with integrated CTI for asset discovery and vulnerability mgmt (Commercial)
- [DarknetSearch Attack Surface Discovery](https://cybersectools.com/tools/darknetsearch-attack-surface-discovery): Attack surface discovery platform monitoring digital assets and data exposures (Commercial)
- [Detectify Platform](https://cybersectools.com/tools/detectify-platform): Platform for external attack surface management and application security testing (Commercial)
- [Detectify Surface Monitoring](https://cybersectools.com/tools/detectify-surface-monitoring): Monitors internet-facing subdomains for vulnerabilities and misconfigurations (Commercial)
- [GoSecure Titan® Attack Surface Management](https://cybersectools.com/tools/gosecure-titanr-attack-surface-management): Discovers, monitors, and assesses external attack surface assets continuously. (Commercial)
- [Halo Security External Attack Surface Management](https://cybersectools.com/tools/halo-security-external-attack-surface-management): External attack surface management platform for asset discovery and monitoring (Commercial)
- [NetSPI External Attack Surface Management (EASM)](https://cybersectools.com/tools/netspi-external-attack-surface-management-easm): Continuous discovery, monitoring, and testing of external assets and exposures (Commercial)
- [watchTowr Platform](https://cybersectools.com/tools/watchtowr-platform): External attack surface management with continuous security testing (Commercial)
- [Orpheus External Attack Surface Management](https://cybersectools.com/tools/orpheus-external-attack-surface-management): EASM platform with continuous asset discovery and threat intelligence context (Commercial)
- [Trickest ASM - Attack Surface Management](https://cybersectools.com/tools/trickest-asm-attack-surface-management): Customizable ASM platform for asset discovery, monitoring, and enrichment (Commercial)
- [Criminal IP Security Scanning Service](https://cybersectools.com/tools/criminal-ip-security-scanning-service): Internet-connected asset search engine with vulnerability scanning capabilities (Commercial)
- [Intruder Discover Attack Surface](https://cybersectools.com/tools/intruder-discover-attack-surface): Attack surface management platform for discovering and securing exposed assets (Commercial)
- [CyCognito EASM Platform](https://cybersectools.com/tools/cycognito-easm-platform): EASM platform that discovers, attributes, and actively validates external assets and risks (Commercial)
- [ThreatMon Attack Surface Intelligence](https://cybersectools.com/tools/threatmon-attack-surface-intelligence): Attack surface management platform for asset discovery and vulnerability monitoring (Commercial)
- [FortifyData Attack Surface Management](https://cybersectools.com/tools/fortifydata-attack-surface-management): ASM platform for discovering, monitoring, and prioritizing external/internal assets (Commercial)
- [Intel 471 Cyber Threat Exposure](https://cybersectools.com/tools/intel-471-cyber-threat-exposure): CTI-driven external attack surface mgmt with threat exposure prioritization (Commercial)
- [Searchlight Exposure](https://cybersectools.com/tools/assetnote-attack-surface-management-tool): ASM platform that scans external attack surfaces hourly for vulnerabilities (Commercial)
- [Ivanti Neurons for EASM](https://cybersectools.com/tools/ivanti-neurons-for-easm): Cloud-based EASM platform for discovering internet-facing assets & exposures (Commercial)
- [MokN Lantern](https://cybersectools.com/tools/mokn-lantern): EASM platform for continuous external attack surface monitoring and detection (Commercial)
- [Strobes Attack Surface Management](https://cybersectools.com/tools/strobes-attack-surface-management): Platform for continuous attack surface discovery, monitoring, and remediation (Commercial)
- [Check Point Attack Surface Management](https://cybersectools.com/tools/check-point-attack-surface-management): Continuously maps digital footprint, identifies exposures & validates exploitability (Commercial)
- [CyCraft XCockpit EASM](https://cybersectools.com/tools/cycraft-xcockpit-easm): External attack surface management platform with AI-powered risk assessment (Commercial)

## Alternatives to each of these

[ctlogs.dev alternatives](https://cybersectools.com/alternatives/ctlogsdev) · [SOC Radar DNS Monitoring alternatives](https://cybersectools.com/alternatives/soc-radar-dns-monitoring) · [Outpost24 External Attack Surface Management alternatives](https://cybersectools.com/alternatives/outpost24-external-attack-surface-management) · [StrikeOne Attack Surfa alternatives](https://cybersectools.com/alternatives/strikeone-attack-surfa) · [Hadrian Agentic AI alternatives](https://cybersectools.com/alternatives/hadrian-agentic-ai) · [Microsoft Defender EASM alternatives](https://cybersectools.com/alternatives/microsoft-defender-external-attack-surface-management) · [Halo Security Attack Surface Management alternatives](https://cybersectools.com/alternatives/halo-security-attack-surface-management) · [Assetnote ASM alternatives](https://cybersectools.com/alternatives/assetnote-asm) · [Censys Attack Surface Management alternatives](https://cybersectools.com/alternatives/censys-attack-surface-management) · [Risksurface alternatives](https://cybersectools.com/alternatives/risksurface) · [QuimeraX External Attack Surface Management alternatives](https://cybersectools.com/alternatives/quimerax-external-attack-surface-management) · [Intruder Attack Surface Management alternatives](https://cybersectools.com/alternatives/intruder-attack-surface-management)

## Compare Shodan with

- [Shodan vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-shodan)
- [Shodan vs SOC Radar DNS Monitoring](https://cybersectools.com/compare/shodan-vs-soc-radar-dns-monitoring)
- [Shodan vs Outpost24 External Attack Surface Management](https://cybersectools.com/compare/outpost24-external-attack-surface-management-vs-shodan)
- [Shodan vs StrikeOne Attack Surfa](https://cybersectools.com/compare/shodan-vs-strikeone-attack-surfa)
- [Shodan vs Hadrian Agentic AI](https://cybersectools.com/compare/hadrian-agentic-ai-vs-shodan)
- [Shodan vs Microsoft Defender EASM](https://cybersectools.com/compare/microsoft-defender-external-attack-surface-management-vs-shodan)
- [Shodan vs Halo Security Attack Surface Management](https://cybersectools.com/compare/halo-security-attack-surface-management-vs-shodan)
- [Shodan vs Assetnote ASM](https://cybersectools.com/compare/assetnote-asm-vs-shodan)

## Shodan Alternatives FAQ

### What are the closest alternatives to Shodan?

The closest matches to Shodan by shared tags and NIST CSF 2.0 coverage are ctlogs.dev, SOC Radar DNS Monitoring, Outpost24 External Attack Surface Management, StrikeOne Attack Surfa, and Hadrian Agentic AI. All of them are External Attack Surface Management products.

### How many alternatives to Shodan are available?

This page shows 48 alternatives to Shodan, 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.

### Is Shodan free or commercial?

Shodan is a free External Attack Surface Management product. You can use it at no cost. Only commercial alternatives are listed here. Free and open source products are under /free.

### What type of solution is Shodan?

Shodan 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.

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Source: https://cybersectools.com/alternatives/shodan

For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any product or compare page has a Markdown copy too (add .md to its URL).

More on Shodan and its alternatives: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=alternatives-md