Calculate critical rendering path length: time from navigation start to first render. Determined by the longest chain of blocking resources (HTML parse → CSS → render-blocking JS → first paint).
Calculate critical rendering path length: time from navigation start to first render. Determined by the longest chain of blocking resources (HTML parse → CSS → render-blocking JS → first paint)
Each component has a specific meaning:
Note: Interpret the critical render path time result against the thresholds and context described above.
Enter the navigation start for the scenario you are assessing. Calculate critical rendering path length: time from navigation start to first render. Determined by the longest chain of blocking resources (HTML parse → CSS → render-blocking JS → first paint). Use the critical render path time result to inform your calculation.