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://web.archive.org/web/20221012034332/https://www.economist.com/media-assets/audio/084%20Graphic%20detail%20-%20Politics%20and%20statistics-72dd7398f150db0c7ef93ce567ca2e43.mp3
