is-a.dev
Free .is-a.dev subdomains for developers' personal websites
What it is
A free service that hands out subdomains under is-a.dev, managed entirely through this GitHub repository. Developers fork the repo, add a small JSON file describing the DNS records they want, and open a pull request; after review and merge, the records go live on Cloudflare within minutes. People use it to point a short, memorable address at a portfolio, blog, or GitHub Pages site without buying a domain.