Features, pricing, ratings, and pros and cons, compared head to head.
ctlogs.dev is a commercial external attack surface management tool by Apps34. Siemba EASM is a commercial external attack surface management tool by Siemba. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
Based on our analysis of core features, integrations, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise security teams drowning in shadow IT and forgotten assets will get the most from Siemba EASM because it discovers external-facing infrastructure without needing credentials or network access. The platform maps to all four relevant NIST CSF 2.0 functions,Asset Management, Risk Assessment, Continuous Monitoring, and Infrastructure Resilience,which reflects real coverage across the attack surface lifecycle rather than point-in-time scanning. Skip this if your organization already has mature asset inventory processes or if you need deep integration with existing ticketing workflows; Siemba prioritizes discovery and monitoring visibility over downstream remediation automation.
Fast Certificate Transparency search and JSON API for subdomain reconnaissance.
AI-driven EASM platform for discovering and monitoring external-facing assets
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Common questions about comparing ctlogs.dev vs Siemba EASM for your external attack surface management needs.
ctlogs.dev: Fast Certificate Transparency search and JSON API for subdomain reconnaissance. built by Apps34. Core capabilities include Real-time Certificate Transparency Search, Automated Subdomain Enumeration, High-Performance REST JSON API..
Siemba EASM: AI-driven EASM platform for discovering and monitoring external-facing assets. built by Siemba..
Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.
ctlogs.dev is developed by Apps34. Siemba EASM is developed by Siemba. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
ctlogs.dev and Siemba EASM serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover TLS. Review the feature comparison above to determine which fits your requirements.
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