Title: Template:MediaWiki URL rules - freem

URL Source: https://freemwiki.com/index.php?oldid=579980&title=Template%3AMediaWiki_URL_rules

Markdown Content:
From freem

URLs must begin with a supported [URI scheme](https://freemwiki.com/index.php?title=URI_scheme&action=edit&redlink=1 "URI scheme (page does not exist)"). `http://` and `https://` will be supported by all browsers; however, `ftp://`, `gopher://`, `irc://`, `ircs://`, `mailto:` and `news:` may require a plug-in or an external application and should normally be avoided. [IPv6](https://freemwiki.com/index.php?title=IPv6&action=edit&redlink=1 "IPv6 (page does not exist)") host-names are currently not supported.

If URLs in [citation template parameters](https://en.wikipedia.org/wiki/Citation_templates#Examples "wikipedia:Citation templates") contain certain characters, then they will not display and link correctly. Those characters need to be [percent-encoded](https://freemwiki.com/index.php?title=Percent-encoded&action=edit&redlink=1 "Percent-encoded (page does not exist)"). For example, a space must be replaced by `%20`. To encode the URL, replace the following characters with:

| Character | space | " | ' | < | > | [ | ] | { | | | } |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Encoding | %20 | %22 | %27 | %3C | %3E | %5B | %5D | %7B | %7C | %7D |

Single apostrophes do not need to be encoded; however, unencoded multiples will be parsed as italic or bold markup. Single curly closing braces also do not need to be encoded; however, an unencoded pair will be parsed as the double closing braces for the template transclusion.