Bitsight External Attack Surface Management vs ctlogs.dev: side-by-side comparison (2026)

Bitsight External Attack Surface Management: Discovers assets, analyzes risks, and prioritizes vulnerabilities across orgs. Built by Bitsight.

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.

The table above shows where their features, integrations, deployment and company size fit differ.

Bitsight External Attack Surface Management is made by Bitsight. ctlogs.dev is made by Apps34. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. Bitsight External Attack Surface Management and ctlogs.dev are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.