Server-Spy is a free Chrome add-on developed by 马云腾. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This add-on provides users with a range of features to gather information about servers.

With Server-Spy, users can easily view the server response headers of any website they visit. This feature allows users to gain insights into the server's configuration and the response it sends back to the browser. Whether you're a web developer or simply curious about the technical aspects of a website, this information can be valuable.

Additionally, Server-Spy displays the server IP address associated with the current URL. This feature can be useful for troubleshooting network issues or verifying the location of a server. By quickly accessing this information, users can gain a better understanding of the server infrastructure behind a website.

To make sharing URLs more convenient, Server-Spy also generates a QR code for the current URL. This allows users to easily share links by scanning the QR code with their mobile devices. This feature comes in handy when you want to quickly share a webpage with others without the need for typing lengthy URLs.

Overall, Server-Spy is a handy Chrome add-on that provides valuable server information to users. Whether you're a web developer or simply curious about server details, this add-on offers a range of features to satisfy your needs.