An embodiment of the invention discloses a method and a device for monitoring a server, the server and a storage medium. The method comprises the steps of determining a target service module and a target service parameter of an HTTP monitoring request according to a target URL parameter which corresponds with the HTTP monitoring request that is transmitted by a client through a browser; transmitting the target URL parameter to the target service module for acquiring current monitoring data which are returned from the target service module and correspond with the target service parameter; and returning an HTTP response which carries the current monitoring data to the browser of the client. According to the method and the device, real-time server monitoring data are acquired in a manner of actively fetching data by the browser and are displayed in the browser, thereby saving a middle monitoring platform between the browser and the server, realizing a lightweight monitoring mode in whichthe browser directly monitors the server, improving real-time data monitoring accuracy and data processing efficiency of the server, and preventing resource waste in a server data monitoring process.