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

Tested 2026-09-20 11:53:26 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 s1.228 smedian
Cumulative Layout Shifthow much the layout jumpedpassesgood under 0.1poor over 0.250.032median
Total Blocking Timehow long the main thread was blockedpassesgood under 200 mspoor over 600 ms13 msmedian
Speed Indexhow quickly content filled the screenpassesgood under 3.4 spoor over 5.8 s1.312 smedian
Page weightbytes shipped over the wirepassesgood under 1.5 MBpoor over 2.9 MB675.7 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/ChatGPT1.228 s0.03213 ms1.312 s675.7 KB86→

How the median page rendered

Visual milestones
  • 1.200 sFirst Visual Change
  • 1.228 sFirst Contentful Paint
  • 1.228 sLargest Contentful Paint
  • 1.312 sSpeed Index
  • 1.966 sLast Visual Change
  • 2.009 sFully Loaded

What the median page is made of

Bytes and requests by content type
Transfer675.7 KB
javascript290.0 KBhtml192.0 KBsvg86.9 KBimage75.1 KBcss29.0 KBfavicon1.8 KBplain905 B
Requests45
svg24javascript8image7css2html1favicon1plain1

Coach's notes

Median scores out of 100
  • Performance86
  • Best practice75
  • Privacy80
  • Overall82

CPU

Median across all pages
  • Long tasks3
  • Long task time421 ms
  • Max Potential FID57 ms
Where the time went
  • Style & layout415 ms
  • Running JavaScript254 ms
  • Other browser work170 ms
  • Parsing HTML & CSS94 ms
  • Paint & composite67 ms
  • Garbage collection10 ms
  • Parsing & compiling JavaScript3 ms