crt.sh vs Securely C-View Basic: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
crt.sh is a free external attack surface management tool. Securely C-View Basic is a commercial certificate lifecycle management tool by Securely Ltd. 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.
CST VerdictShort answer
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. SMB and mid-market teams drowning in untracked certificates across Windows and AD CS environments should start here; C-View Basic discovers and monitors cert expiration at scale without the licensing overhead of enterprise PKI platforms. It covers the full certificate lifecycle from discovery through validation across Microsoft infrastructure, which is where most certificate failures actually happen. Skip this if your organization runs heterogeneous PKI across multiple CAs or needs automated remediation; C-View is a visibility and monitoring tool, not a certificate issuance or renewal engine.
