Duck.quackprep.net
appears to be the official website for QuackPrep , a service designed to help students prepare for technical interviews.
The "duck" part is a dead giveaway. It strongly suggests ( duckdns.org ), a popular free dynamic DNS service. Thousands of developers use *.duckdns.org domains to point to their home servers, Raspberry Pis, or VPN gateways without paying for a static IP. duck.quackprep.net
That depends on the moment. In the homelab world, a domain might be up today, down for a "quack" (sorry) tomorrow, and rebuilt into something entirely new next week. appears to be the official website for QuackPrep
Domains like duck.quackprep.net are the digital equivalent of a sticky note on a whiteboard: personal, functional, and a little whimsical. It tells a story of someone who: a domain might be up today