MetaExtension license
Is used to to define the license under which a website is published.
Usage
<meta name="license" content="C-BY-NC-SA-4.0">content may be:
- GNU-AGPLv3 (opens in a new tab)
 - GNU-GPLv3 (opens in a new tab)
 - GNU-LGPLv3 (opens in a new tab)
 - Mozilla-Public-2.0 (opens in a new tab)
 - Apache-2.0 (opens in a new tab)
 - MIT (opens in a new tab)
 - Boost-Software-1.0 (opens in a new tab)
 - The-Unlicense (opens in a new tab)
 
Other license types are also possible, but it is then recommended to link to the license via license:uri.