Is there a codechef kind of thingy for competitive web devolapment ?

Codechef is one of the best platforms for competitive programming, but what about web development?
Isn’t it important too? Except for Courses and lessons on various portals which are great for learning but don’t provide the environment for competitions. So, is there any website?

Yes as i know topcoder do it. Definition from wikipedia :

Topcoder is a company that administers contests in computer programming.[1] Topcoder hosts fortnightly online competitive programming competitions—known as SRMs or “single round matches”—as well as weekly competitions in graphic design and development. The work in design and development produces useful software which is licensed for profit by Topcoder.