HTTP 504: 504 Gateway Timeout

What Does HTTP 504 Mean?

HTTP 504 Gateway Timeout indicates that the server, while acting as a gateway or proxy, did not get a response in time from the upstream server.

Causes and How to Fix HTTP 504

Unoptimized database queries, slow external API dependencies, or strict proxy timeout thresholds.

SEO & Search Engine Impact

Harms Core Web Vitals and crawling capacity. Requires backend performance and query optimization.

Web Server Configuration (Nginx & Apache)

Configure custom error handling in your web server:

# Nginx Custom Error Handler
error_page 504 /504.html;
location = /504.html {
    root /var/www/html;
    internal;
}