1 page analysed for https://en.wikipedia.org/wiki/...

Tested 2026-08-24 20:41:31 using Chrome (runtime settings)

Pages passing every check
0 / 1
The page needs work; the dots show where.https://en.wikipedia.org/wiki/ChatGPT
Open the page report →
Largest Contentful Paintwhen the main content showedpassesgood under 2.5 spoor over 4 s1.196 smedian
Cumulative Layout Shifthow much the layout jumpedpassesgood under 0.1poor over 0.250.001median
Total Blocking Timehow long the main thread was blockedpassesgood under 200 mspoor over 600 ms7 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s1.210 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB599.6 KBmedian
Coach performance scorehow well pages follow performance adviceflaggedpoor under 70good over 9086median · worst 87
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.org/wiki/ChatGPT1.196 s0.0017 ms1.210 s599.6 KB87→

How the median page rendered

Visual milestones
  • 1.196 sFirst Contentful Paint
  • 1.196 sLargest Contentful Paint
  • 1.200 sFirst Visual Change
  • 1.210 sSpeed Index
  • 1.600 sLast Visual Change
  • 1.726 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer599.6 KB
javascript288.7 KBhtml182.8 KBsvg80.6 KBcss29.0 KBimage15.8 KBfavicon1.8 KBplain905 B
Requests40
svg23javascript7image4css2html1favicon1plain1

Coach's notes

Median scores out of 100
  • Performance86
  • Best practice75
  • Privacy80
  • Overall83

CPU

Median across all pages
  • Long tasks3
  • Long task time380 ms
  • Max Potential FID57 ms
Where the time went
  • Style & layout370 ms
  • Running JavaScript235 ms
  • Other browser work148 ms
  • Parsing HTML & CSS92 ms
  • Paint & composite52 ms
  • Garbage collection9 ms
  • Parsing & compiling JavaScript3 ms