An alias is a second name for a page. In Obsidian the quick switcher finds a note under its
alias too, and a [[Alias]] points to it. On the site the plugin Alias redirects builds a small
redirect page for every alias: whoever opens the old address lands on the new one.
---
aliases:
- Second name
- en/4-controlling-a-page/another-path
---This page can thereby be reached under three addresses: its own, /Second name and
/en/4-controlling-a-page/another-path. An alias may be a word or a whole path.
What for
A page was renamed or moved. The old path as an alias keeps old links alive — bookmarks, references from other sites, search engine hits.
A term has two names. “Backlinks” and “references back” mean the same; an alias lets both be found.
Connecting a translation. An alias that matches the title of the page in the other language connects the two for the language switcher — see 4.7 – Translation.
Every alias is a page
The plugin builds a redirect file of its own for every alias. A hundred aliases are a hundred more files in the output. That is not an error, but a reason to set aliases where they do something.
How to write aliases and what a link to one looks like: Aliases in chapter 2.