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

Tested 2026-08-24 23:58:07 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 s1.192 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 ms8 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s1.214 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
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/ChatGPT1.192 s0.0018 ms1.214 s599.6 KB86→

How the median page rendered

Visual milestones
  • 1.192 sFirst Contentful Paint
  • 1.192 sLargest Contentful Paint
  • 1.200 sFirst Visual Change
  • 1.214 sSpeed Index
  • 1.866 sLast Visual Change
  • 1.913 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 time343 ms
  • Max Potential FID57 ms
Where the time went
  • Style & layout365 ms
  • Running JavaScript237 ms
  • Other browser work146 ms
  • Parsing HTML & CSS84 ms
  • Paint & composite49 ms
  • Garbage collection9 ms
  • Parsing & compiling JavaScript4 ms