Webjan 15, 2024 · what does a 404 error mean? When you see a 404 error code, it means that the page you’re looking for doesn’t exist — either because it was moved, deleted or. Web6 days ago · project 404 was a project undetaken by the usaf, in conjunction with the cia, to provide the military forces of laos with covert air support. 3. 1 operation hotfoot. Here's what to do. Links which lead to a 404 page are often called broken or dead links, and can be subject…