What is the new SSL certificate validity limit?

Capped at 200 days now, dropping to 100 in 2027, 47 by 2029.

Do existing SSL certificates get shorter?

No, only new issuances and renewals follow the cuts.

How to automate SSL certificate renewal?

Use ACME protocol via Let's Encrypt or provider tools — zero-touch lifecycle.

SSL Certificates Shrink to 47 Days: The Forced March to Automation

Forget annual SSL renewals. The industry's new rules cap certificates at 200 days now, heading to 47 by 2029. Manual processes? Dead. Automation? Mandatory.

theAIcatchup Apr 07, 2026 3 min read

Timeline graphic of SSL certificate validity reductions from 398 to 47 days

⚡ Key Takeaways

SSL validity slashed to 200 days now, 47 by 2029 in phases. 𝕏
Manual renewals untenable; ACME automation mandatory for survival. 𝕏
Security wins via shorter windows and tougher validation, but small sites hit hardest. 𝕏

Published by

theAIcatchup

Community-driven. Code-first.

Worth sharing?

Get the best Open Source stories of the week in your inbox — no noise, no spam.

Originally reported by Dev.to

⚡ Key Takeaways

The 60-Second TL;DR

theAIcatchup

Share this article

Worth sharing?

Related Stories

React Server Components' Perfect-Score RCE Flaw Exposes Millions of Apps

Anthropic's One-Line Fumble Leaks Billions in Code

Prism-MCP's 43-Minute JWKS Revolution Secures Agents

Warden v2.0: Free CLI That Sniffs Out Malicious npm Packages in Seconds

Stay in the loop