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/20200912142334/https://github.com/liamg/tfsec/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22