Features, pricing, ratings, and pros & cons — compared head-to-head.
crt.sh is a free external attack surface management tool. GlobalSign Atlas Discovery & Cert Mgmt is a commercial certificate lifecycle management tool by GlobalSign. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
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.
GlobalSign Atlas Discovery & Cert Mgmt
SMB and mid-market teams drowning in undocumented SSL/TLS certificates across hybrid networks need GlobalSign Atlas Discovery & Cert Mgmt to stop treating cert expiry as a firefighting problem. The tool's agentless discovery finds certificates on public and private networks simultaneously, then enforces compliance checks against weak algorithms and key lengths that most teams miss until they break production. Skip this if your organization has fewer than 50 certificates or relies on a single trusted CA; the API-first architecture and multi-CA tracking shine only when you're managing sprawl at scale.
Bash script for subdomain enumeration via crt.sh certificate transparency logs.
SSL/TLS certificate discovery and lifecycle management platform.
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Common questions about comparing crt.sh vs GlobalSign Atlas Discovery & Cert Mgmt for your external attack surface management needs.
crt.sh: Bash script for subdomain enumeration via crt.sh certificate transparency logs. Core capabilities include Subdomain enumeration via certificate transparency logs, Automated querying of crt.sh website, Parsing and filtering of crt.sh output..
GlobalSign Atlas Discovery & Cert Mgmt: SSL/TLS certificate discovery and lifecycle management platform. built by GlobalSign. Core capabilities include SSL/TLS certificate discovery across public and private networks, Certificate inventory management with issue and expiry date tracking, Multi-CA certificate tracking, including certificates from third-party CAs..
Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.
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