Abstract: Disclosed are a method, device and system for loading recommendation information and detecting a URL. The method for loading recommendation information comprises: initiating a loading request of a current webpage at a browser side; receiving a recommendation information loading identifier sent by a URL security assembly in a computer system where the browser is located with respect to the loading request, wherein the recommendation information loading identifier is a recommendation information loading identifier generated when the URL security assembly determines that the loading request conforms to a preset condition; according to webpage state information about the current webpage, requesting recommendation information from a recommendation server corresponding to the browser; and loading the recommendation information requested from the recommendation server in a browser window of the current webpage at the browser side.