# 404 on .well-known/acme-challenge/

**URL:** <https://community.letsencrypt.org/t/404-on-well-known-acme-challenge/15565>\
**Category:** Server\
**Created:** [May 10, 2016, 3:38pm UTC](https://community.letsencrypt.org/t/404-on-well-known-acme-challenge/15565 "2016-05-10T15:38:36Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![jongrover](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/jongrover/32/7247_2.png) [@jongrover](https://community.letsencrypt.org/u/jongrover)\
**Post date:** [May 10, 2016, 4:30pm UTC](https://community.letsencrypt.org/t/404-on-well-known-acme-challenge/15565/10 "2016-05-10T16:30:45Z")

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One thing that this changed is that now the 404 page is the Nginx/Unbuntu 404 page and no longer the rails 404 page.

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_[View the full topic](https://community.letsencrypt.org/t/404-on-well-known-acme-challenge/15565)._