1 page analysed for https://en.wikipedia.beta.wmcl...

Tested 2026-07-28 00:31:10 using Chrome (runtime settings)

Pages passing every check
0 / 1
The page needs work; the dots show where.https://en.wikipedia.beta.wmcloud.org/wiki/Barack_Obama
Open the page report →
Largest Contentful Paintwhen the main content showedpassesgood under 2.5 spoor over 4 s1.980 smedian
Cumulative Layout Shifthow much the layout jumpedpassesgood under 0.1poor over 0.250.035median
Total Blocking Timehow long the main thread was blockedpassesgood under 200 mspoor over 600 ms176 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s2.067 smedian
Page weightbytes shipped over the wireflaggedgood under 1.5 MBpoor over 2.9 MB1.7 MBmedian
Coach performance scorehow well pages follow performance adviceflaggedpoor under 70good over 9078median
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
VerdictPageLCPCLSTBTSpeed IndexWeightCoach
needs workhttps://en.wikipedia.beta.wmcloud.org/wiki/Barack_Obama1.980 s0.035176 ms2.067 s1.7 MB78→

How the median page rendered

Visual milestones
  • 1.812 sFirst Contentful Paint
  • 1.833 sFirst Visual Change
  • 1.980 sLargest Contentful Paint
  • 2.067 sSpeed Index
  • 3.700 sLast Visual Change
  • 4.036 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer1.7 MB
image957.3 KBjavascript364.3 KBhtml363.9 KBcss31.3 KBsvg22.4 KB
Requests99
image70svg18javascript7css2html1

Coach's notes

Median scores out of 100
  • Performance78
  • Best practice60
  • Privacy71
  • Overall73

CPU

Median across all pages
  • Long tasks9
  • Long task time704 ms
  • Max Potential FID105 ms
Where the time went
  • Style & layout606 ms
  • Running JavaScript325 ms
  • Other browser work232 ms
  • Parsing HTML & CSS199 ms
  • Paint & composite151 ms
  • Garbage collection9 ms
  • Parsing & compiling JavaScript4 ms