# 404 **Page name:** 404\ **Purpose:** Users are redirected to this page anytime they try to navigate to a page the does not exist Your app will come with a simple 404 page. A 404 page is also known as an “error page” or “Page Not Found” page. This page indicates that the user reached the domain they requested, but the URL path provided no information or the page does not exist. ![](/files/-MPzIJ27hGr5nT-71RsO) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.airdev.co/canvas/3.6/canvas-functionality/reference/default-pages/404.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.