304
Updated: 08/02/2020 by Computer Hope
304 may refer to any of the following:
1. 304 is an HTTP (hypertext transfer protocol) status code for "use a local copy". Essentially, the page is retrieved from a visitor's cache, instead of from the server. This method helps with load times when a page is not being modified.
2. 304 is a US area code. See our 304 area code listing for further information.