Skip to main content

RFC 9773 - ACME Renewal Information (ARI) Extension

  • Status: Proposed Standard
  • Published: June 2025
  • Stream: IETF
  • Pages: 12
  • Errata: No Errata

Abstract​

This document specifies how an Automated Certificate Management Environment (ACME) server can suggest when ACME clients should attempt certificate renewal. The extension helps servers mitigate load spikes and helps clients avoid false assumptions about appropriate certificate renewal periods.

Last updated on