This guide details the "502 Bad Gateway" errors that can be encountered when visiting a website.

Preamble

• The 502 Bad Gateway error occurs when the server acting as a gateway between the browser and the origin web server receives an invalid response.
• This error can be caused by an overloaded web server, communication issues between a CDN and the hosting web server, or a misconfigured proxy server.
• Sometimes, the error can be caused by a bad entry in the DNS server.

Troubleshooting steps

To resolve the 502 Bad Gateway error, you often need to proceed by elimination:

• Check if the server is temporarily overloaded: simply reload the page after a few minutes for the error to disappear.
• Clear the browser cache.
• Try from another browser.