A 404 page is a standard HTTP error code that signifies a web page someone was looking doesn’t exist. These error pages are also referred to as dead-links. A lot of people overlook the web page design and underestimate the importance of 404 error pages. 404 error pages are often left looking completely irrelevant to the web user, which drives them away, before they’ve even had a chance to check out the home page. If designed correctly, 404 pages can provide helpful information to the web user and actively re-direct them into the website and more importantly, straight to a page that’s of interest to them.

Effective 404 error pages engage the user by properly explaining why they have arrived at an error page. If the web user understands the problem and accepts it as a natural occurrence, rather than a result of an incomplete or poorly designed website, they are more likely to keep looking around.

404 error pages need to be helpful. Web users should be presented with a highlighted search box, a clear list of relevant links and an easy way to contact support. When users arrive at a 404 error page they are often lost, the 404 should therefore act like a GPS and tell the web user where to go next.

It also helps to provide web users with a humour injection. Creating a slightly comedic animation, including a funny image or adding a joke might be enough for the average web user to forgive the error and continue browsing the website.