Certificate issuance volume
Copy linkTotal number of certificates issued over the selected time period
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The data presented here is derived from Certificate Transparency logs currently monitored by Cloudflare. Learn how CT monitoring works.
Certificate characteristics
Copy linkInformation on the technical makeup of certificates
Certificate issuance
Copy linkCertificate issuance is the process by which CAs generate digital certificates for domain owners. CAs are often operated by larger organizations, who may manage multiple subordinate CAs under a single corporate umbrella
Certificate Transparency logs
Copy linkCT logs are "append-only" and publicly-auditable ledgers of certificates being created, updated, and expired
Certificate coverage
Copy linkA certificate can cover multiple top-level domains (TLDs), include wildcard entries, and support IP addresses in Subject Alternative Names (SANs)