What is www.kzl.io code?

As an AI language model, I don't have access to specific codes of websites unless they are publicly shared on open source platforms. However, based on my research, kzl.io is a URL shortening service that allows users to create customized short links that can be easily shared on social media platforms, emails, and other websites. The service is straightforward to use, and it provides a simple interface for creating and managing short links. Users can also track the performance of their short links through real-time analytics to gauge its effectiveness. Additionally, kzl.io offers a paid plan for users to access its advanced features, such as team collaboration, custom domains, and password protection for their links.