CloudScraper vs crt.sh: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
CloudScraper is a free external attack surface management tool. crt.sh 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:
Security teams hunting exposed cloud storage misconfigurations will move fastest with CloudScraper because it's free and requires no credentials to enumerate S3, Azure blob, and DigitalOcean resources across your attack surface. The 529 GitHub stars reflect active community use, and the zero-friction deployment means you can scan for leaky buckets in minutes rather than weeks of procurement. Skip this if you need ongoing monitoring or remediation workflows; CloudScraper is a reconnaissance tool, not a compliance engine.
Security teams doing threat intelligence or domain monitoring should use crt.sh as a free, fast way to spot certificate issuance anomalies that signal domain takeover or phishing campaigns before they scale. Certificate Transparency logs index roughly 15 billion certificates, giving you real-time visibility into what's been legitimately issued against your domains and competitors' infrastructure. Skip this if you need automated alerting or integration into your SIEM; crt.sh is a lookup tool, not a monitoring platform, and catching malicious certificates requires manual checks or custom scripting.
