Time to Interactive (TTI)
First Interactive and Consistently Interactive help pinpoint the time at which a given page is ready for human interaction.
Why is monitoring Time to Interactive important?
How are these metrics calculated?
Calibre observes the points at which a given page has:
- Finished rendering content
- Key webfonts are visible and the interface has stopped moving
Calibre works backwards from the time of document completion until it finds a point at which the browser is at rest, users are able to fully read content and interact without notable delay.
Calibre tracks the following Time to Interactive metrics: First Interactive and Consistently Interactive. These are great candidates for improving the user experience.