1 page analysed for https://en.wikipedia.org/wiki/...

Tested 2026-07-27 21:18:30 using Chrome (runtime settings)

Pages passing every check
0 / 1
The page needs work; the dots show where.https://en.wikipedia.org/wiki/Barack_Obama
Open the page report →
Largest Contentful Paintwhen the main content showedpassesgood under 2.5 spoor over 4 s1.188 smedian
Cumulative Layout Shifthow much the layout jumpedpassesgood under 0.1poor over 0.250.001median
Total Blocking Timehow long the main thread was blockedflaggedgood under 200 mspoor over 600 ms245 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s1.214 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB1.4 MBmedian
Coach performance scorehow well pages follow performance adviceflaggedpoor under 70good over 9081median
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.org/wiki/Barack_Obama1.188 s0.001245 ms1.214 s1.4 MB81→

How the median page rendered

Visual milestones
  • 1.166 sFirst Visual Change
  • 1.188 sFirst Contentful Paint
  • 1.188 sLargest Contentful Paint
  • 1.214 sSpeed Index
  • 2.766 sLast Visual Change
  • 7.388 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer1.4 MB
image569.4 KBhtml407.7 KBjavascript305.2 KBsvg81.2 KBcss30.7 KBfavicon1.8 KBplain920 B
Requests90
image54svg23javascript7css2html1favicon1plain1

Coach's notes

Median scores out of 100
  • Performance81
  • Best practice79
  • Privacy80
  • Overall80

CPU

Median across all pages
  • Long tasks8
  • Long task time846 ms
  • Max Potential FID115 ms
Where the time went
  • Style & layout693 ms
  • Running JavaScript361 ms
  • Other browser work265 ms
  • Parsing HTML & CSS182 ms
  • Paint & composite177 ms
  • Garbage collection22 ms
  • Parsing & compiling JavaScript4 ms