A 404 return code actually means 'resource not found', and applies to any entity for which a request was made but not satisfied. So it works equally-well for pages, subsections of pages, …

List of HTTP status codes HTTP Persistence Compression HTTPS QUIC Request methods OPTIONS GET HEAD POST PUT DELETE TRACE CONNECT PATCH Header fields Cookie …

Oct 30, 2025 · This response code means the returned metadata is not exactly the same as is available from the origin server, but is collected from a local or a third-party copy.

Jul 23, 2025 · 404 HTTP Status code appears when you request a URL and then the server has not found anything. This happens when the server doesn't wish to describe the reason why the …

Sep 29, 2025 · The 404 Not Found status code indicates that the server understood the request (it's not a syntax error), but it cannot find the requested resource on its system.

Aug 2, 2023 · What is '404 Not Found'? Learn how to use and/or fix this HTTP status code, with free examples and code snippets.

Jun 19, 2025 · Find out what the 404 error means, its causes, and how to fix it, whether you are visiting a website or managing one. What Is a 404 Error? 404 Not Found is an HTTP status …

Sep 2, 2025 · Every Internet user has seen the “Not found” page with the three-digit “404” code at some point. This is an HTTP response from the server of the website you are visiting, telling …

Aug 29, 2025 · Have you ever clicked on a link and got a “Page Not Found” message instead? That’s your first meeting with HTTP status codes! These short numeric codes are your …

Sep 27, 2024 · To check the 404 status yourself, follow these steps: Open Chrome browser → Turn on the developer tools → Inspect the page → Go to the Network option. If you don’t see …