Custom Site Icon

Favicons can be set for both individual pages and the entire site with the favicon_url option. For example, this page has frontmatter,

---
layout: post
title: Custom Site Favicon
favicon_url: assets/img/favicon-alternate.svg
---

Favicons can also be selected by including favicon_url in _config.yml.

If you want to specify the full URL to a favicon, you can use favicon_url_absolute instead of favicon_url.