crt.sh vs DigiCert TLS/SSL Certificates: 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. DigiCert TLS/SSL Certificates is a commercial certificate lifecycle management tool by DigiCert. 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. Startups and SMBs that need encryption deployed without certificate management overhead should pick DigiCert TLS/SSL Certificates for the automated lifecycle handling and unlimited issuance across single, wildcard, and multi-domain options. The CertCentral portal handles renewals, replacements, and inventory at scale, eliminating the manual tracking that kills small teams. Skip this if your primary concern is vulnerability scanning or brand protection; those features live only in the higher-tier Secure Site Pro offering and shouldn't be your deciding factor.
