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

Tested 2026-08-24 23:52:12 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 s1.860 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 ms73 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s1.999 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB844.4 KBmedian
Coach performance scorehow well pages follow performance adviceflaggedpoor under 70good over 9087median
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_Obama1.860 s0.03873 ms1.999 s844.4 KB87→

How the median page rendered

Visual milestones
  • 1.766 sFirst Visual Change
  • 1.780 sFirst Contentful Paint
  • 1.860 sLargest Contentful Paint
  • 1.999 sSpeed Index
  • 3.200 sLast Visual Change
  • 3.297 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer844.4 KB
html364.3 KBjavascript356.6 KBimage69.0 KBcss31.0 KBsvg23.4 KB
Requests40
svg18image11javascript7css2html1

Coach's notes

Median scores out of 100
  • Performance87
  • Best practice68
  • Privacy71
  • Overall78

CPU

Median across all pages
  • Long tasks2
  • Long task time173 ms
  • Max Potential FID101 ms
Where the time went
  • Style & layout573 ms
  • Running JavaScript306 ms
  • Other browser work190 ms
  • Parsing HTML & CSS183 ms
  • Paint & composite111 ms
  • Garbage collection8 ms
  • Parsing & compiling JavaScript4 ms