A complete explanation of LCP, INP, CLS and TTFB: what each metric measures, how browsers compute them, common causes of failures, and the threshold values that determine Good/Needs Improvement/Poor ratings.
A complete explanation of LCP, INP, CLS and TTFB: what each metric measures, how browsers compute them, common causes of failures, and the threshold values that determine Good/Needs Improvement/Poor ratings.