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Web PerformancePerformance Metrics & Core Web Vitals

56 items

1

Measuring CLS with PerformanceObserver

Code Quiz
2

Core Web Vitals: LCP, CLS, INP

Quiz
3

Observing LCP with PerformanceObserver

Code Quiz
4

Understanding LCP and CLS

Quiz
5

Time to First Byte (TTFB)

Slides / Video
6

LCP Thresholds

Code Quiz
7

Lab vs Field Data

Code Quiz
8

p75 Percentile

Code Quiz
9

Rating Boundaries

Code Quiz
10

CLS Thresholds

Code Quiz
11

INP Thresholds

Code Quiz
12

FID Calculation

Code Quiz
13

Computing TTFB

Code Quiz
14

Measuring FCP

Code Quiz
15

Total Blocking Time

Code Quiz
16

Navigation Timing

Code Quiz
17

PerformanceObserver Setup

Code Quiz
18

web-vitals Library

Code Quiz
19

Largest Contentful Paint (LCP)

Slides / Video
20

What Core Web Vitals Are

Slides / Video
21

Tools for Measuring Web Vitals

Slides / Video
22

Lab Data vs Field Data (RUM)

Slides / Video
23

Core Web Vitals: Three Categories

Slides / Video
24

Good vs Poor Metric Thresholds

Slides / Video
25

Time to Interactive (TTI)

Slides / Video
26

Speed Index Basics

Quiz
27

Time to Interactive Basics

Quiz
28

Total Blocking Time Basics

Quiz
29

What INP Measures

Quiz
30

What LCP Measures

Quiz
31

Lab vs Field Data

Quiz
32

The Three Core Web Vitals

Quiz
33

FID Replaced by INP

Quiz
34

CLS Good Threshold

Quiz
35

INP Good Threshold

Quiz
36

LCP Rating Thresholds

Quiz
37

Why Metrics Are User-Centric

Quiz
38

Why the 75th Percentile

Quiz
39

What CLS Measures

Quiz
40

Interaction to Next Paint (INP)

Flashcard
41

What Core Web Vitals Are

Flashcard
42

Core Web Vitals Thresholds

Flashcard
43

Percentiles (p75) in Measurement

Flashcard
44

Lab Data vs Field Data

Flashcard
45

Speed Index

Flashcard
46

Time to First Byte (TTFB)

Flashcard
47

Cumulative Layout Shift (CLS)

Flashcard
48

Total Blocking Time (TBT)

Flashcard
49

First Contentful Paint (FCP)

Flashcard
50

Largest Contentful Paint (LCP)

Flashcard
51

First Input Delay (FID)

Flashcard
52

Time to Interactive (TTI)

Flashcard
53

First Contentful Paint (FCP)

Slides / Video
54

Interaction to Next Paint (INP)

Slides / Video
55

Cumulative Layout Shift (CLS)

Slides / Video
56

First Input Delay (FID)

Slides / Video
Quiz

Core Web Vitals: LCP, CLS, INP

Test your understanding of what each Core Web Vital measures and its recommended thresholds.

As of 2024, INP (Interaction to Next Paint) replaced FID as a Core Web Vital. Which statement most accurately describes the three Core Web Vitals?