# How do you confirm the person asking for the certificate actually owns the domain?

**URL:** <https://community.letsencrypt.org/t/how-do-you-confirm-the-person-asking-for-the-certificate-actually-owns-the-domain/30>\
**Category:** Issuance Tech\
**Created:** [August 13, 2015, 12:07pm UTC](https://community.letsencrypt.org/t/how-do-you-confirm-the-person-asking-for-the-certificate-actually-owns-the-domain/30 "2015-08-13T12:07:18Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![runelaenen](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/runelaenen/32/27_2.png) [@runelaenen](https://community.letsencrypt.org/u/runelaenen)\
**Post date:** [August 13, 2015, 5:26pm UTC](https://community.letsencrypt.org/t/how-do-you-confirm-the-person-asking-for-the-certificate-actually-owns-the-domain/30/2 "2015-08-13T17:26:09Z")

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From what I’ve seen/read, the letsencrypt client has a built in webserver which is listening to the domein. It then polls the domein on the port the client is listening to. If it works, it’s your domain. (someone elses domain wouldn’t point to your server, you see?)

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