October 27, 2022 . 1 MIN READ
When you attempt to open a website in your browser, the browser sends a request to the web server that hosts the site. Normally, if the server processes the request successfully, it returns a 200 OK status code. However, if the server takes too long to respond, the browser may display the HTTP 504 error.
This error means that the server acting as a gateway or proxy did not receive a response from the upstream server within the required time to complete the request and deliver the website content.
According to the Internet Engineering Task Force (IETF), a 504 Gateway Timeout occurs when a server, while functioning as a gateway or proxy, fails to receive a timely response from another server that it depends on to process the request.
In many cases, this error may be temporary and caused by heavy traffic or high server load. It can also happen if a specific resource on the website takes too long to load. Another possible reason is that the user’s computer is unable to establish a proper connection with the website due to network-related issues.
Reference:
https://www.siteground.com/kb/504-gateway-timeout/#:~:text=The%20504%20(Gateway%20Timeout)%20status,toward%20the%20server%20or%20site.
