As UX designers we work hard to understand where users tend to go wrong and why in order to prevent errors. But no one's perfect. Eventually someone’s going to make a typo, forget to input something, or hit the wrong button. Errors are part of the experience so UX design shouldn’t end with them. A bad error experience and all the work you’ve done up to that point may not matter. Your users get annoyed, confused, or frustrated and they’re gone. 404 pages are one of the more common culprits for this. Like every other page, they should have a design and content strategy that positively supports a good user experience. Check out some tips on how to create better 404 pages.
