Summary
Detailed Summary
Pages
Domains
Toplist
Assets
1 page analysed for https://en.wikipedia.org/wiki/...
Tested 2026-09-20 12:11:27 using Chrome
(runtime settings)
Pages passing every check
0
/ 1
The page needs work; the dots show where.
https://en.wikipedia.org/wiki/Facebook
Open the page report →
Largest Contentful Paint
when the main content showed
passes
good under 2.5 s
poor over 4 s
1.168 s
median
Cumulative Layout Shift
how much the layout jumped
passes
good under 0.1
poor over 0.25
0.032
median
Total Blocking Time
how long the main thread was blocked
passes
good under 200 ms
poor over 600 ms
74 ms
median
Speed Index
how quickly content filled the screen
passes
good under 3.4 s
poor over 5.8 s
1.290 s
median
Page weight
bytes shipped over the wire
passes
good under 1.5 MB
poor over 2.9 MB
766.9 KB
median
Coach performance score
how well pages follow performance advice
flagged
poor under 70
good over 90
86
median · worst 83
The dot on each track is your page; click it to open the page report.
Page by page
Worst first · median of the runs · click a page for its full report
Verdict
Page
LCP
CLS
TBT
Speed Index
Weight
Coach
needs work
https://en.wikipedia.org/wiki/Facebook
1.168 s
0.032
74 ms
1.290 s
766.9 KB
83
→
How the median page rendered
Visual milestones
1.166 s
First Visual Change
1.168 s
First Contentful Paint
1.168 s
Largest Contentful Paint
1.290 s
Speed Index
2.212 s
Fully Loaded
2.266 s
Last Visual Change
What the median page is made of
Bytes and requests by content type
Transfer
766.9 KB
html
292.3 KB
javascript
284.4 KB
svg
85.9 KB
image
71.5 KB
css
30.0 KB
favicon
1.8 KB
plain
905 B
Requests
46
svg
23
image
9
javascript
8
css
2
html
1
favicon
1
plain
1
Coach's notes
Median scores out of 100
Performance
86
Best practice
75
Privacy
80
Overall
82
CPU
Median across all pages
Long tasks
3
Long task time
459 ms
Max Potential FID
90 ms
Where the time went
Style & layout
534 ms
Running JavaScript
292 ms
Other browser work
193 ms
Parsing HTML & CSS
129 ms
Paint & composite
98 ms
Garbage collection
21 ms
Parsing & compiling JavaScript
3 ms