Causes of Error 502

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Between the server and the browser, there may be a web server that stores the site files and is used to reduce the load. It finds the necessary page in the directory and sends it in response to the user's request. The browser processes the received file and displays it on the screen. Since the web server acts as an intermediary between the browser and the server, it is the one that notifies the user about the problem.


Most often, the cause of the 502 error when opening a site is server overload, which can occur for a number of reasons:

A large number of visitors at the same time . The server's capabilities are limited, so only a qatar rcs data certain number of users can view the site. The maximum number depends on the server's power and the settings set by the resource owner. If too many users visit the site at the same time, the server will not withstand the load, and the page will return error code 502. For example, such situations often occur in online stores during promotions and seasonal sales.
Hacker attack (DDoS attack) . Hackers, creating a large number of requests, simulate a huge influx of users, as a result of which the server is overloaded and fails.