Let's Encrypt

Aug 30, 2026 · Asif Mughal

Too Many Certificates Already Issued for Exact Set of Domains

Too many certificates already issued for exact set of domains means you hit Let's Encrypt's 5-per-week duplicate limit. Here is why shorter certificate lifetimes make this more likely, and the real fix, not the advice that makes it worse.

Aug 29, 2026 · Asif Mughal

Let's Encrypt Certificates Are Getting Shorter. Is Your Renewal Script Ready?

Let's Encrypt is shortening its certificate lifetimes, moving from 90 days down to 64 days by February 2027, with 45-day and even 6-day options already available. If your renewal script still assumes a 30-day buffer, here is why that assumption is starting to run out of room.