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

Tested 2026-09-24 06:16:45 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 s2.076 smedian
Cumulative Layout Shifthow much the layout jumpedpassesgood under 0.1poor over 0.250.038median
Total Blocking Timehow long the main thread was blockedpassesgood under 200 mspoor over 600 ms104 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s2.189 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB848.1 KBmedian
Coach performance scorehow well pages follow performance adviceflaggedpoor under 70good over 9084median
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_Obama2.076 s0.038104 ms2.189 s848.1 KB84→

How the median page rendered

Visual milestones
  • 1.966 sFirst Visual Change
  • 1.976 sFirst Contentful Paint
  • 2.076 sLargest Contentful Paint
  • 2.189 sSpeed Index
  • 3.333 sLast Visual Change
  • 3.648 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer848.1 KB
html364.1 KBjavascript359.9 KBimage71.7 KBcss30.6 KBsvg21.9 KB
Requests40
svg18image11javascript7css2html1

Coach's notes

Median scores out of 100
  • Performance84
  • Best practice68
  • Privacy71
  • Overall77

CPU

Median across all pages
  • Long tasks3
  • Long task time270 ms
  • Max Potential FID109 ms
Where the time went
  • Style & layout587 ms
  • Running JavaScript304 ms
  • Other browser work199 ms
  • Parsing HTML & CSS177 ms
  • Paint & composite118 ms
  • Garbage collection18 ms
  • Parsing & compiling JavaScript4 ms