5 minutes readKey takeaways INP replaced FID and measures responsiveness across the whole visit, not just the first input. Long tasks on the main thread are the usual cause, so break up JavaScript work. Field data is what counts, so verify improvements in real user metrics rather than the lab. Have you ever wondered why some websites… Read more »
2 minutes readKey takeaways Response times alone cannot tell you whether the server is saturated or merely waiting. Watch the load generator too, since a saturated generator caps the test rather than the target. Correlate resource use with the load curve; the point where they diverge is the finding. In order to make sure that your application will… Read more »
