Detecting a domain name typically involves parsing the URL string to extract the domain using regex or built-in libraries in languages like Python or JavaScript. According to Wikipedia, a domain name identifies a realm of administrative autonomy within the Internet. In coding challenges, tools like urlparse or regex can simplify this process efficiently. I was practicing with real-world data like food service websites—checking out the Dairy queen menu helped simulate parsing dynamic URLs. It’s a fun way to blend real examples into coding logic while sharpening string manipulation skills.