crt.sh vs Sectigo 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. Sectigo SSL Certificates is a commercial certificate lifecycle management tool by Sectigo. 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 mid-market teams needing reliable SSL/TLS coverage without negotiating enterprise sales cycles should use Sectigo SSL Certificates; the vendor supports DV, OV, and EV validation types across unlimited server licenses, which means you buy once and deploy across your entire infrastructure without per-instance fees. Certificates come with warranties up to $1.75M and 24/7 support, giving you actual recourse if something breaks. Skip this if you need integrated certificate lifecycle automation that talks to your infrastructure-as-code pipeline; Sectigo excels at issuing and renewing certs, but doesn't deeply embed into orchestration workflows the way specialized CLM platforms do.
