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 - http://web.archive.org/web/20210609174903/https://www.gstatic.com/youtube/img/promos/growth/6ad5a99c727579634bc3e2fb67562a2621170bdd11578967392667be5a05c5e4_384x384.png