What does an HTTP 404 error mean?
AnswerThe page was not found
A 404 status means the server could not find the requested page.
Coding · Facts & stats
Web facts & stats
7 fact-checked facts about the World Wide Web, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is a hyperlink?
AnswerClickable text or an image that leads to another page
Hyperlinks connect pages together, which is what makes the web a web.
Going deeper
What does DNS do?
AnswerTranslates domain names into IP addresses
The Domain Name System works like a phone book, turning names like example.com into numeric addresses.
At which research organization was the World Wide Web invented?
AnswerCERN
The web was proposed in 1989 at CERN, the European physics laboratory near Geneva.
Which HTML tag is used to create a link?
Answer<a>
The anchor tag <a> with an href attribute creates a hyperlink.
Expert level
What does the HTTP status code 301 mean?
AnswerMoved Permanently
A 301 tells browsers and search engines that a page has a new permanent address.
What does W3C stand for?
AnswerWorld Wide Web Consortium
The World Wide Web Consortium develops open standards for the web.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round