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Let's Encrypt

Let's Encrypt Profiles Put Renewal Assumptions Under the Microscope

Let's Encrypt's May 2026 profile rollout left classic certificates at 90 days, but made ACME profile choice, challenge paths, hooks, and monitoring harder to ignore.

Tags

TLS

Let's Encrypt

Certbot

Linux Operations

Certificate Management

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Written recommendations from Trafik og Veje, Aarhus Municipality (2011) and AgroTech (2010).