Performance Metrics · AuditJet Glossary
TTI (Time to Interactive)
The time until a page is visually rendered and capable of reliably responding to user input — the main thread has been idle for at least 5 seconds with no long tasks.
TTI marks when a page transitions from visually loaded to fully interactive. A page may look loaded (FCP done, LCP done) but still be unresponsive if JavaScript is still executing. Google has de-emphasised TTI in favour of INP as the interactivity metric, but TTI remains a useful diagnostic for understanding the JavaScript execution phase.
Related terms
A Core Web Vital that assesses overall responsiveness by observing the latency of all qualifying interactions throughout the entire page lifecycle and reporting the worst-case value.
The total time between First Contentful Paint and Time to Interactive during which the main thread was blocked for long enough to prevent input responsiveness.
A JavaScript task that takes longer than 50ms to complete and blocks the browser's main thread, preventing user interaction.
The time from page navigation start until any text, image, non-white canvas, or SVG is first rendered on the page.
Frequently asked questions
What is TTI (Time to Interactive)?
The time until a page is visually rendered and capable of reliably responding to user input — the main thread has been idle for at least 5 seconds with no long tasks.
How does AuditJet measure TTI (Time to Interactive)?
AuditJet runs automated Google Lighthouse audits that surface TTI (Time to Interactive) scores alongside actionable fix guidance. You can track TTI (Time to Interactive) trends across all your pages and receive alerts when the metric regresses.
Monitor TTI continuously
AuditJet tracks Core Web Vitals on a schedule with revenue impact alerts — powered by Google Lighthouse and Google PageSpeed Insights.
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