The King of 404

The "King of 404" is a playful term referring to the HTTP 404 error code, which means a webpage was not found on a server. "King" humorously suggests it's the "ruler" of the common error messages users encounter when a link is broken or the page has been moved or deleted. Essentially, it indicates that the requested online resource doesn't exist or cannot be located at that address. Recognizing this helps users understand that the problem isn't their device but the web address or webpage's availability.