Changes
This will ensure that if someone typed {{Official website||example.com}} by accident, we get it. I don't want to add a categorization logic to the module at this time.
<includeonly>{{#invoke:Official website|main}}{{#invoke:Check for unknown parameters|check|showblankpositional=1|unknown={{main other|1=[[Category:Pages using Official website with unknown parameters|_VALUE_{{PAGENAME}}]]}}|preview=Page using [[Template:Official website]] with unknown parameter "_VALUE_"|1|2|URL|url|mobile|name|format}}</includeonly><!--
--><noinclude>{{documentation}}</noinclude>
--><noinclude>{{documentation}}</noinclude>