Certificate issuance volume
Total 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
Information on the technical makeup of certificates
Certificate issuance
Certificate 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
CT logs are "append-only" and publicly-auditable ledgers of certificates being created, updated, and expired
Certificate coverage
A certificate can cover multiple top-level domains (TLDs), include wildcard entries, and support IP addresses in Subject Alternative Names (SANs)
Latest Certificates Transparency blog posts
Posts tagged with "Certificates Transparency" from the Cloudflare blog