Intruder Discover Attack Surface vs Turbolist3r: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Intruder Discover Attack Surface is a commercial external attack surface management tool by Intruder. Turbolist3r is a free external attack surface management tool. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Intruder Discover Attack Surface
SMB and mid-market teams without dedicated security infrastructure will find real value in Intruder Discover Attack Surface for closing the visibility gap on cloud-exposed assets. The platform's multi-cloud integration across AWS, Google Cloud, and Azure combined with automatic discovery means you're not manually hunting for forgotten instances or misconfigured buckets. The honest limitation: this tool prioritizes asset discovery and continuous scanning over remediation workflows, so teams expecting built-in fix guidance or deep integration with your existing SOAR should look elsewhere.
Security teams building subdomain inventories on a shoestring budget will get immediate value from Turbolist3r; the Python implementation runs fast enough to enumerate mid-size organizations in minutes, and the 386 GitHub stars reflect actual adoption by practitioners rather than marketing noise. The free pricing means you're not choosing between this tool and nothing,you're choosing between this and paying for a commercial scanner that does the same reconnaissance work. Skip it if you need passive DNS integration, API automation, or a web UI; Turbolist3r is command-line only and won't integrate into your existing attack surface management workflow without custom scripting.
