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

Tested 2026-09-24 02:56:33 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 s2.084 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 ms97 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s2.159 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_Obama2.084 s0.03897 ms2.159 s848.1 KB84→

How the median page rendered

Visual milestones
  • 1.933 sFirst Visual Change
  • 1.948 sFirst Contentful Paint
  • 2.084 sLargest Contentful Paint
  • 2.159 sSpeed Index
  • 3.366 sLast Visual Change
  • 3.747 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer848.1 KB
html364.1 KBjavascript359.9 KBimage71.7 KBcss30.5 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 FID107 ms
Where the time went
  • Style & layout576 ms
  • Running JavaScript312 ms
  • Other browser work202 ms
  • Parsing HTML & CSS176 ms
  • Paint & composite119 ms
  • Garbage collection17 ms
  • Parsing & compiling JavaScript5 ms