Site Identifier is a free Chrome extension developed by AT Learner. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This extension is primarily designed for developers of ServiceNow or any tool with multiple environments. Its main purpose is to change the appearance of rendered content based on the URL.

With Site Identifier, developers can easily identify different environments by putting a name on the right side overlay. Additionally, the extension allows users to mark the site background using different colors selected by the user. This feature provides a visual indication of the environment being accessed.

Furthermore, Site Identifier offers the ability to store frequently used scripts and any notes or to-do lists for quick and easy access. The extension's interface is simple and user-friendly, making it ideal for those who prefer a straightforward solution for managing multiple environments.

Overall, Site Identifier is a useful tool for developers who work with ServiceNow or similar platforms. Its intuitive interface and ability to customize the appearance of rendered content based on the URL make it a valuable addition to any developer's toolkit.