Let's Encrypt Protects Nearly One Billion Websites
Let's Encrypt marks a 10-year milestone since its first publicly trusted certificate on September 14, 2015, reporting rapid growth and near-one-billion website protection. Internet Security Research Group co-founder Josh Aas cited milestones—one million certificates by March 2016, million-per-day by September 2018, and frequent ten million daily issuances by late 2025—and noted Firefox HTTPS share rose from 39% to about 80% today.
Key Points
- 1Reports issuance milestones: one million total by March 2016; million-per-day by September 2018; ten million daily by late 2025.
- 2Highlights web encryption adoption: Firefox HTTPS share grew from 39% in early 2016 to roughly 80% today.
- 3Encourages automated certificate deployment and ACME integration across server ecosystems, reducing TLS deployment friction.
Scoring Rationale
Large, verifiable industry milestone with broad web-security impact, but it is primarily an adoption and scale update rather than a technical breakthrough.
Sources
Public references used for this report.
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