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

Tested 2026-09-24 05:29:25 using Chrome (runtime settings)

Pages passing every check
0 / 1
The page is below the bar; the dots show where.https://en.wikipedia.beta.wmcloud.org/wiki/Barack_Obama
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Largest Contentful Paintwhen the main content showedflaggedgood under 2.5 spoor over 4 s2.804 smedian
Cumulative Layout Shifthow much the layout jumpedflaggedgood under 0.1poor over 0.250.101median
Total Blocking Timehow long the main thread was blockedflaggedgood under 200 mspoor over 600 ms2.049 smedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s3.382 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB782.1 KBmedian
Coach performance scorehow well pages follow performance adviceflaggedpoor under 70good over 9083median · worst 81
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
poorhttps://en.wikipedia.beta.wmcloud.org/wiki/Barack_Obama2.804 s0.1012.049 s3.382 s782.1 KB81→

How the median page rendered

Visual milestones
  • 2.200 sFirst Visual Change
  • 2.212 sFirst Contentful Paint
  • 2.804 sLargest Contentful Paint
  • 3.382 sSpeed Index
  • 6.200 sLast Visual Change
  • 6.482 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer782.1 KB
javascript359.0 KBhtml294.6 KBimage81.1 KBcss28.0 KBsvg17.8 KBjson1.6 KB
Requests31
svg15image6javascript5css2html1json1

Coach's notes

Median scores out of 100
  • Performance83
  • Best practice65
  • Privacy74
  • Overall77

CPU

Median across all pages
  • Long tasks12
  • Long task time2.747 s
  • Max Potential FID577 ms
Where the time went
  • Running JavaScript2.219 s
  • Parsing HTML & CSS1.009 s
  • Other browser work745 ms
  • Style & layout450 ms
  • Paint & composite148 ms
  • Parsing & compiling JavaScript28 ms
  • Garbage collection25 ms