Admin Tools

#26275 .well-known

Posted in ‘Admin Tools for Joomla!’
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Environment Information

Joomla! version
PHP version
Admin Tools version

 Hello, I just installed 2 new Joomla sites and then Admin Tools. One I did the quick wizard one I did not.

Both sites have a pre defined entry in the Allow direct access, except .php files, to these directories of .well-known

I have never seen this before and wonder if you can tell me if this means anything to you.


Akeeba Staff
Please consult RFC 5785 for the meaning of the .well-known URL prefix i.e. the use of a .well-known folder in web sites. This is used, among other things, to confirm the ownership of a domain name when using Let's Encrypt or

We added it as a default option in Admin Tools 4.0 on purpose. Many hosts which use cPanel now offer a single-click SSL certificate installation through Let's Encrypt. That makes use of the .well-known directory to verify ownership of the domain. If access to the directory is disabled by default –as it was in previous versions of Admin Tools– obtaining an SSL certificate automatically was impossible. Since there is no security threat from allowing web access to the non-executable contents of that directory and there is a great security value in HTTPS being widely used on as many sites as possible we decided to whitelist this directory by default.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

OK thanks, just making sure nothing was awry.

Thanks for all your help and 7 years of security and not a single breach or issue!

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