Final answer:
The abbreviation TTI stands for Time to Interactive, which measures how long it takes for a webpage to become interactive and user-friendly. TTI is an important metric in web development as it affects user experience and engagement. Developers can optimize TTI by reducing render-blocking resources and improving server response time.
Step-by-step explanation:
TTI stands for Time to Interactive and it is a metric used to measure the performance of websites or applications. It calculates the time it takes for a webpage to become interactive, meaning the user can interact with the content and perform actions like clicking buttons or filling out forms.
TTI is an important metric in web development as it directly affects user experience. A slow TTI can result in frustrated users and potential loss of engagement or conversions. Developers can optimize the TTI by reducing render-blocking resources, optimizing code, and improving server response time.