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.
Ulbora CMS is a self-contained CMS (no database needed) written in Golang. It uses a JSON datastore with content saved in both json files and in memory. You can download and upload a single binary backup file containing content, images, and templates as needed. It also has a built-in mail sender.
This desktop GUI will index, format and create .txt files from the text content from webpages you request, so long as HTML or JSON is sent as a response. You can crawl sites as single pages, crawl all internal links on a page, or crawl all links within the page's <nav> tag(s). You can also decide to extract only page titles, the main text content, or all text content from the page. The crawler has some built-in basic error logging.