Let's Encrypt
recommended: observeLet's Encrypt is a developer helper operated by Let's Encrypt.
What it does
Let's Encrypt's traffic often follows fixed intervals like a cron job. Activity may consist of short recurring checks or occasional intensive bursts, but it usually remains limited to a specific set of pages or endpoints.
How to identify it
User-agent contains any of:
Let's EncryptLet&
robots.txt
Well-behaved crawlers honor robots.txt. To control Let's Encrypt:
Allow full access
User-agent: Let&
Allow: /
Block entirely
User-agent: Let&
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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