The HTTP 404, 404 Not Found, 404, Page Not Found, or Server Not Found error message is a Hypertext Transfer Protocol (HTTP) standard response code, in computer network communications, to indicate that the browser was able to communicate with a given server, but the server could not find what was requested. Further, when the requested information is found but access is not granted, the server may return a 404 error if it wishes to not disclose this information, as well.
The website hosting server will typically generate a “404 Not Found” web page when a user attempts to follow a broken or dead link; hence the 404 error is one of the most recognizable errors encountered on the World Wide Web.
Wikipedia, the free encyclopedia
This is why most of my backdated articles will include the timestamp 4:04. If I don’t have a timestamp to put on the article, it becomes a 4:04 for me. Sometimes it’s high noon or midnight, but usually it is just 4:04, time not found.
Postscript
There were 406 days between these two images. The 203’d day was June 7, 2018. That’s “why this date?” The images are screenshots taken on my Nexus 5 smartphone, may it rest in peace. I cried the first time I dropped and shattered my Handspring Visor. We can get quite attached to our tech, us geeks.
It’s still happening in 2021!
