Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
The Wayback Machine - https://webcf.waybackmachine.org/web/20210221155448/https://github.com/mrdoob/three.js/commit/0c815022849389cbe6de14a93e1c2fc7e4b21c18