<p>404 = resource (usually a web page) not found error. you might find a reference to it in nerdy (the best kind!) jokes</p>
<p>inet = an old abbreviation of internet. good example of how programmers are too lazy to type everything out</p>
<p>domain = a range of names that point to servers. technically stuff like com, edu, org, gov, etc... are domains (they are top-level domains), but usually a domain refers to something like princeton.edu or google.com or wikipedia.org. In this case, I was referring to the domain puwebp(or was it q?).princeton.edu, which is more specifically a subdomain, but I think I've confused you enough already, sorry :P </p>
<p>at least it might come in handy when you're representing princeton on college jeopardy.</p>