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Let's Encrypt

recommended: allow
Operated by Let's Encrypt security

Let's Encrypt domain control validation service.

How to identify it

User-agent contains any of:

  • https://www.letsencrypt.org

robots.txt

Well-behaved crawlers honor robots.txt. To control Let's Encrypt:

Allow full access

User-agent: https://www.letsencrypt.org
Allow: /

Block entirely

User-agent: https://www.letsencrypt.org
Disallow: /

Grey-area scrapers ignore robots.txt. Botscope enforces your policy at the edge or origin regardless — see how →

See Let's Encrypt on your own site

Botscope shows every bot and AI agent hitting your site — and lets you allow, challenge, or block each one. Observe first, enforce when you're ready.

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