# Sublist3r alternatives and competitors (2026) The closest Sublist3r alternatives are [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev), [MGM Security Partners recon me](https://cybersectools.com/tools/mgm-security-partners-recon-me) and [Detectify Platform](https://cybersectools.com/tools/detectify-platform). Picking a Sublist3r 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, MGM Security Partners recon me, Detectify Platform. ## The product [Sublist3r](https://cybersectools.com/tools/sublist3r) Sublist3r is a python tool for enumerating subdomains using OSINT and various search engines. 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. ## Sublist3r alternatives and competitors Sublist3r 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), [MGM Security Partners recon me](https://cybersectools.com/tools/mgm-security-partners-recon-me), [Detectify Platform](https://cybersectools.com/tools/detectify-platform), [Detectify Surface Monitoring](https://cybersectools.com/tools/detectify-surface-monitoring), and [Halo Security Attack Surface Discovery](https://cybersectools.com/tools/halo-security-attack-surface-discovery). 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 Sublist3r alternatives These 8 solutions overlap most with Sublist3r. 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) · [Sublist3r vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-sublist3r) ### 2. [MGM Security Partners recon me](https://cybersectools.com/tools/mgm-security-partners-recon-me) recon me is an OSINT tool developed by mgm Security Partners and used as part of the company's OSINT analysis service. The tool collects and correlates publicly available information about an organization's external attack surface, including domains, subdomains, servers, technologies used, metadata, and publicly accessible files. It supports two scan modes: - Passive scan: queries public directory services such as Whois, DNS, and MX records to identify servers, subdomains, email addresses, technologies, and operators (e.g. Amazon, Akamai) without any interaction with target systems. - Active scan: directly examines the target domain without performing attacks, to identify additional services, technologies, or unintentionally exposed files. Results from recon me are combined with manual expert analysis and used to produce a report detailing identified assets, potential vulnerabilities, misconfigurations, and prioritized recommendations. The output is intended to give organizations a view of their public attack surface from an attacker's perspective and can serve as a basis for further security testing such as penetration tests. Proprietary OSINT tool for mapping an organization's public attack surface [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 8 listed. See them on the [MGM Security Partners recon me page](https://cybersectools.com/tools/mgm-security-partners-recon-me#features). [MGM Security Partners recon me alternatives](https://cybersectools.com/alternatives/mgm-security-partners-recon-me) · [Sublist3r vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-sublist3r) ### 3. [Detectify Platform](https://cybersectools.com/tools/detectify-platform) Platform for external attack surface management and application security testing [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 10 listed. See them on the [Detectify Platform page](https://cybersectools.com/tools/detectify-platform#features). [Detectify Platform alternatives](https://cybersectools.com/alternatives/detectify-platform) · [Sublist3r vs Detectify Platform](https://cybersectools.com/compare/detectify-platform-vs-sublist3r) ### 4. [Detectify Surface Monitoring](https://cybersectools.com/tools/detectify-surface-monitoring) Monitors internet-facing subdomains for vulnerabilities and misconfigurations [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 10 listed. See them on the [Detectify Surface Monitoring page](https://cybersectools.com/tools/detectify-surface-monitoring#features). [Detectify Surface Monitoring alternatives](https://cybersectools.com/alternatives/detectify-surface-monitoring) · [Sublist3r vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-sublist3r) ### 5. [Halo Security Attack Surface Discovery](https://cybersectools.com/tools/halo-security-attack-surface-discovery) Discovers and inventories internet-facing assets including subdomains, IPs, and apps. [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 10 listed. See them on the [Halo Security Attack Surface Discovery page](https://cybersectools.com/tools/halo-security-attack-surface-discovery#features). [Halo Security Attack Surface Discovery alternatives](https://cybersectools.com/alternatives/halo-security-attack-surface-discovery) · [Sublist3r vs Halo Security Attack Surface Discovery](https://cybersectools.com/compare/halo-security-attack-surface-discovery-vs-sublist3r) ### 6. [Intruder Discover Attack Surface](https://cybersectools.com/tools/intruder-discover-attack-surface) Attack surface management platform for discovering and securing exposed assets [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 10 listed. See them on the [Intruder Discover Attack Surface page](https://cybersectools.com/tools/intruder-discover-attack-surface#features). [Intruder Discover Attack Surface alternatives](https://cybersectools.com/alternatives/intruder-discover-attack-surface) · [Sublist3r vs Intruder Discover Attack Surface](https://cybersectools.com/compare/intruder-discover-attack-surface-vs-sublist3r) ### 7. [Searchlight Exposure](https://cybersectools.com/tools/assetnote-attack-surface-management-tool) ASM platform that scans external attack surfaces hourly for vulnerabilities [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 10 listed. See them on the [Searchlight Exposure page](https://cybersectools.com/tools/assetnote-attack-surface-management-tool#features). [Searchlight Exposure alternatives](https://cybersectools.com/alternatives/assetnote-attack-surface-management-tool) · [Sublist3r vs Searchlight Exposure](https://cybersectools.com/compare/assetnote-attack-surface-management-tool-vs-sublist3r) ### 8. [Ceeyu Digital Footprint Monitoring](https://cybersectools.com/tools/ceeyu-digital-footprint-monitoring) Automated digital asset discovery and monitoring for external attack surface [External Attack Surface Management](https://cybersectools.com/categories/external-asm) · Commercial Key features: 10 listed. See them on the [Ceeyu Digital Footprint Monitoring page](https://cybersectools.com/tools/ceeyu-digital-footprint-monitoring#features). [Ceeyu Digital Footprint Monitoring alternatives](https://cybersectools.com/alternatives/ceeyu-digital-footprint-monitoring) · [Sublist3r vs Ceeyu Digital Footprint Monitoring](https://cybersectools.com/compare/ceeyu-digital-footprint-monitoring-vs-sublist3r) ## The closest 48 products like Sublist3r The 8 above, plus: - [Aleph Search](https://cybersectools.com/tools/aleph-search-clear): OSINT tool for mapping & monitoring risk ecosystems on Clear & Deep Web. (Commercial) - [Cylana EASM](https://cybersectools.com/tools/cylana-easm): AI-powered EASM platform for digital asset discovery and monitoring. (Commercial) - [ThreatDefence Integrated ASM](https://cybersectools.com/tools/threatdefence-integrated-asm): ASM platform monitoring external attack surface, dark web leaks & 3rd-party risks. (Commercial) - [Sn1per Professional 2026](https://cybersectools.com/tools/sn1per-professional-2026): Sn1per Professional 2026: automated penetration testing & attack surface management (Commercial) - [TRaViS](https://cybersectools.com/tools/travis): AI-enhanced EASM platform for external attack surface discovery and monitoring. (Commercial) - [Domain Beacon](https://cybersectools.com/tools/domain-beacon): Provide intelligence about a domain (Commercial) - [SurfaceDiff](https://cybersectools.com/tools/surfacediff): Continuous external attack surface monitoring that shows what changed between scans. (Commercial) - [Attack Surface Scan](https://cybersectools.com/tools/attack-surface-scan): Agentless external attack surface monitoring with continuous change detection. (Commercial) - [ArmorPoint Attack Surface Management](https://cybersectools.com/tools/armorpoint-attack-surface-management): Continuous, agentless discovery and threat-intel enrichment of external internet-facing (Commercial) - [DarkInvader EASM Platform](https://cybersectools.com/tools/darkinvader-easm-platform) (Commercial) - [FalconTech Threat Hunter](https://cybersectools.com/tools/falcontech-threat-hunter) (Commercial) - [SECWATCH Exposure Control](https://cybersectools.com/tools/secwatch-exposure-control): Human-validated external attack surface risk prioritization combining scanning (Commercial) - [Driftnet Explore](https://cybersectools.com/tools/driftnet-explore): Internet-wide scanning platform for discovering exposed devices, services (Commercial) - [DDactic Attack Surface Discovery](https://cybersectools.com/tools/ddactic-attack-surface-discovery): Scans domains to discover attack surface, vulnerabilities, and generate hardening (Commercial) - [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management): Cloud platform for continuous visibility & mgmt of external attack surfaces (Commercial) - [StrikeOne Attack Surfa](https://cybersectools.com/tools/strikeone-attack-surfa): AI-powered attack surface management platform for cybersecurity monitoring (Commercial) - [Hadrian Agentic AI](https://cybersectools.com/tools/hadrian-agentic-ai): AI-powered platform for continuous attack surface discovery and pentesting (Commercial) - [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management): Discovers and monitors external-facing assets and vulnerabilities (Commercial) - [Halo Security Attack Surface Management](https://cybersectools.com/tools/halo-security-attack-surface-management): External attack surface mgmt platform for discovering & monitoring assets (Commercial) - [Assetnote ASM](https://cybersectools.com/tools/assetnote-asm): External attack surface management platform with continuous asset discovery (Commercial) - [CloudSEK Attack Surface Management](https://cybersectools.com/tools/cloudsek-attack-surface-management): External attack surface management platform for discovering digital assets (Commercial) - [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) - [ThingsRecon Supply Chain Intelligence](https://cybersectools.com/tools/thingsrecon-supply-chain-intelligence): Supply chain intelligence platform mapping digital ecosystems & proximity risks (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) - [Zerofox External Attack Surface Management](https://cybersectools.com/tools/zerofox-external-attack-surface-management): Discovers and manages internet-facing assets with vulnerability prioritization (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 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. (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) - [Team Cymru RADAR](https://cybersectools.com/tools/team-cymru-radar): Passive asset discovery platform using Netflow data for attack surface mapping (Commercial) - [Akamai DNS Posture Management](https://cybersectools.com/tools/akamai-dns-posture-management): DNS security posture management across multicloud and on-prem environments (Commercial) ## Alternatives to each of these [ctlogs.dev alternatives](https://cybersectools.com/alternatives/ctlogsdev) · [MGM Security Partners recon me alternatives](https://cybersectools.com/alternatives/mgm-security-partners-recon-me) · [Detectify Platform alternatives](https://cybersectools.com/alternatives/detectify-platform) · [Detectify Surface Monitoring alternatives](https://cybersectools.com/alternatives/detectify-surface-monitoring) · [Halo Security Attack Surface Discovery alternatives](https://cybersectools.com/alternatives/halo-security-attack-surface-discovery) · [Intruder Discover Attack Surface alternatives](https://cybersectools.com/alternatives/intruder-discover-attack-surface) · [Searchlight Exposure alternatives](https://cybersectools.com/alternatives/assetnote-attack-surface-management-tool) · [Ceeyu Digital Footprint Monitoring alternatives](https://cybersectools.com/alternatives/ceeyu-digital-footprint-monitoring) · [Aleph Search alternatives](https://cybersectools.com/alternatives/aleph-search-clear) · [Cylana EASM alternatives](https://cybersectools.com/alternatives/cylana-easm) · [ThreatDefence Integrated ASM alternatives](https://cybersectools.com/alternatives/threatdefence-integrated-asm) · [Sn1per Professional 2026 alternatives](https://cybersectools.com/alternatives/sn1per-professional-2026) ## Compare Sublist3r with - [Sublist3r vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-sublist3r) - [Sublist3r vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-sublist3r) - [Sublist3r vs Detectify Platform](https://cybersectools.com/compare/detectify-platform-vs-sublist3r) - [Sublist3r vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-sublist3r) - [Sublist3r vs Halo Security Attack Surface Discovery](https://cybersectools.com/compare/halo-security-attack-surface-discovery-vs-sublist3r) - [Sublist3r vs Intruder Discover Attack Surface](https://cybersectools.com/compare/intruder-discover-attack-surface-vs-sublist3r) - [Sublist3r vs Searchlight Exposure](https://cybersectools.com/compare/assetnote-attack-surface-management-tool-vs-sublist3r) - [Sublist3r vs Ceeyu Digital Footprint Monitoring](https://cybersectools.com/compare/ceeyu-digital-footprint-monitoring-vs-sublist3r) ## Sublist3r Alternatives FAQ ### What are the closest alternatives to Sublist3r? The closest matches to Sublist3r by shared tags and NIST CSF 2.0 coverage are ctlogs.dev, MGM Security Partners recon me, Detectify Platform, Detectify Surface Monitoring, and Halo Security Attack Surface Discovery. All of them are External Attack Surface Management products. ### How many alternatives to Sublist3r are available? This page shows 48 alternatives to Sublist3r, 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 Sublist3r free or commercial? Sublist3r 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 Sublist3r? Sublist3r 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. --- Source: https://cybersectools.com/alternatives/sublist3r 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 Sublist3r 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