As jameslk also mentioned, this article mistakenly uses "dominteractive" interchangeably with "time-to-interactive". They are not the same metric. Lighthouse us

As jameslk also mentioned, this article mistakenly uses "dominteractive" interchangeably with "time-to-interactive". They are not the same metric. Lighthouse uses a different algorithm for computing TTI. https://web.dev/interactive/#what-tti-measures https://web.dev/interactive/#what-tti-measures https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/domInteractive https://developer.mozilla.org/en-US/docs/Web/API/Performance...