ReaderFunded · site
linuxupskillchallenge.org
Linux Upskill Challenge is a tech site on linuxupskillchallenge.org, in English, funded by its readers: about 9 paying supporters on Buy Me a Coffee, estimated.
A month-long online course teaching Linux server administration from the command line, aimed at aspiring junior sysadmins.
Visit Linux Upskill ChallengeSupport on Buy Me a Coffee
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35 pages indexed; the pages that lead the site by its internal links:
For the site's owner: a badge that says readers fund it, linked to this page. It shows the live figure, so it never goes stale; a count appears once a platform publishes one.
HTML
<a href="https://readerfunded.com/site/linuxupskillchallenge.org"><img src="https://readerfunded.com/badge/linuxupskillchallenge.org.svg" alt="Reader-funded, verified by ReaderFunded" height="20"></a>
Markdown
[](https://readerfunded.com/site/linuxupskillchallenge.org)
Linked from 65 domains, links to 62; of the latter, the funded sites are shown. Funded sites first, then the sources that link to fewest other funded sites. Links as seen in the Common Crawl domain graph (cc-main-2026-aug-sep-oct), cut 2026-10-23: the pages crawled in a window of three months, not necessarily the site of today, and a page not crawled in that window leaves no link.
Sites the same sources link to, by cosine over the sets of linking domains. More.