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4 changes: 2 additions & 2 deletions content/en/docs/challenge-types.md
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
---
title: Challenge Types
slug: challenge-types
lastmod: 2025-12-03
lastmod: 2026-02-12
show_lastmod: 1
---

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Cons:

- It doesn’t work if your ISP blocks port 80 (this is rare, but some residential ISPs do this).
- Let’s Encrypt doesn’t let you use this challenge to issue wildcard certificates.
- This challenge cannot be used to issue wildcard certificates.
- If you have multiple web servers, you have to make sure the file is available on all of them.

# DNS-01 challenge
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