Please note that the Let's Encrypt Growth and Let's Encrypt Certificates Issued Per Day charts are undergoing updates and may not reflect the most recent data. Let's Encrypt Growth Percentage of Web Pages Loaded by Firefox Using HTTPS (14-day moving average, source: Firefox Telemetry) Let's Encrypt Certificates Issued Per Day| letsencrypt.org
Let’s Encrypt provides rate limits to ensure fair usage by as many people as possible. We believe these rate limits are high enough to work for most people by default. We’ve also designed them so that renewing a certificate almost never hits a rate limit, and so that large organizations can gradually increase the number of certificates they can issue without requiring intervention from Let’s Encrypt. If you’re actively developing or testing a Let’s Encrypt client, please utilize our...| letsencrypt.org
This RFC is the revised specification of the protocol and format used in the implementation of the Domain Name System. It obsoletes RFC-883. This memo documents the details of the domain name client - server communication.| IETF Datatracker
