# Azure / LetsEncrypt - Invalid response from host
**URL:** https://community.letsencrypt.org/t/azure-letsencrypt-invalid-response-from-host/112310
**Category:** Help
**Created:** [February 4, 2020, 2:47pm UTC](https://community.letsencrypt.org/t/azure-letsencrypt-invalid-response-from-host/112310 "2020-02-04T14:47:12Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ckoornstra](https://community.letsencrypt.org/u/ckoornstra)
#### Post date: [February 4, 2020, 2:47pm UTC](https://community.letsencrypt.org/t/azure-letsencrypt-invalid-response-from-host/112310/1 "2020-02-04T14:47:12Z")
Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. [crt.sh | example.com](https://crt.sh/?q=example.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: [portal.verbruggen-palletizing.com](http://portal.verbruggen-palletizing.com)
I ran this command: Azure Let's Encrypt site extension
It produced this output:
> Unable to complete challenge with Lets Encrypt servers error was: {"type":"http-01","url":"[https://acme-v02.api.letsencrypt.org/acme/chall-v3/2640468138/TFyBHQ","status":"Invalid","validated":null,"error":{"Type":"urn:ietf:params:acme:error:unauthorized","Detail":"Invalid](https://acme-v02.api.letsencrypt.org/acme/chall-v3/2640468138/TFyBHQ%22,%22status%22:%22Invalid%22,%22validated%22:null,%22error%22:%7B%22Type%22:%22urn:ietf:params:acme:error:unauthorized%22,%22Detail%22:%22Invalid) response from [http://portal.verbruggen-palletizing.com/.well-known/acme-challenge/ezqUJxCOc9mnfgLavpmrVYbHEJT5pUCrFLNZKOYU4S8](http://portal.verbruggen-palletizing.com/.well-known/acme-challenge/ezqUJxCOc9mnfgLavpmrVYbHEJT5pUCrFLNZKOYU4S8)\*
My web server is (include version): Azure Web App
The operating system my web server runs on is (include version): Windows
My hosting provider, if applicable, is: Azure
I can login to a root shell on my machine (yes or no, or I don't know): Yes
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
KUDU
Been looking around for a while but cant find a solution.
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### Author:  [@system](https://community.letsencrypt.org/u/system)
#### Post date: [March 5, 2020, 2:47pm UTC](https://community.letsencrypt.org/t/azure-letsencrypt-invalid-response-from-host/112310/2 "2020-03-05T14:47:16Z")
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