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

Tested 2026-09-24 02:09:14 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 s2.628 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 ms2.069 smedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s3.213 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB798.7 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_Obama2.628 s0.1012.069 s3.213 s798.7 KB81→

How the median page rendered

Visual milestones
  • 2.000 sFirst Visual Change
  • 2.016 sFirst Contentful Paint
  • 2.628 sLargest Contentful Paint
  • 3.213 sSpeed Index
  • 6.033 sLast Visual Change
  • 6.223 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer798.7 KB
javascript359.0 KBhtml294.6 KBimage97.7 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 time2.723 s
  • Max Potential FID577 ms
Where the time went
  • Running JavaScript2.270 s
  • Parsing HTML & CSS1.031 s
  • Other browser work769 ms
  • Style & layout428 ms
  • Paint & composite156 ms
  • Garbage collection26 ms
  • Parsing & compiling JavaScript25 ms