4 pages analysed for loginEmulatedMobile.cjs.cjs

Tested 2026-09-20 14:54:53 using Chrome (script).(runtime settings)

Pages passing every check
0 / 4
4 pages below the bar; the dots show which.loginEmulatedMobile.cjs.cjs
0 pass every check1 need work3 poor on something
Worst page first →
Largest Contentful Paintwhen the main content showed3 of 4 pages flaggedgood under 2.5 spoor over 4 s2.964 smedian · worst 4.108 s
Cumulative Layout Shifthow much the layout jumped2 of 4 pages flaggedgood under 0.1poor over 0.250.095median · worst 0.192
Total Blocking Timehow long the main thread was blocked4 of 4 pages flaggedgood under 200 mspoor over 600 ms911 msmedian · worst 1.724 s
Speed Indexhow quickly content filled the screen2 of 4 pages flaggedgood under 3.4 spoor over 5.8 s3.695 smedian · worst 6.452 s
Page weightbytes shipped over the wireall pages passgood under 1.5 MBpoor over 2.9 MB491.4 KBmedian · worst 673.5 KB
Coach performance scorehow well pages follow performance advice4 of 4 pages flaggedpoor under 70good over 9081median · worst 65
Each dot is one page; hover to trace it across metrics, click to open its report.

Page by page

Worst first · median of the runs · click a page for its full report
VerdictPageLCPCLSTBTSpeed IndexWeightCoach
poorlogin4.108 s0776 ms6.452 s673.5 KB65→
poorhttps://en.wikipedia.org/wiki/Barack_Obama3.320 s0.191.724 s4.484 s525.5 KB86→
poorhttps://en.wikipedia.org/wiki/Facebook1.936 s0.1921.045 s2.905 s457.3 KB88→
needs workLoginPage2.608 s0346 ms2.462 s408.1 KB76→

How the median page rendered

Visual milestones
  • 2.858 sFirst Contentful Paint
  • 2.867 sFirst Visual Change
  • 2.964 sLargest Contentful Paint
  • 3.695 sSpeed Index
  • 5.630 sFully Loaded
  • 10.334 sLast Visual Change

What the median page is made of

Bytes and requests by content type
Transfer491.4 KB
javascript208.1 KBhtml167.7 KBimage73.9 KBcss31.4 KBsvg16.6 KBjson1.8 KBplain1.7 KBfavicon923 B
Requests23
svg12javascript3image3plain2html1css1json1favicon0.5

Coach's notes

Median scores out of 100
  • Performance81
  • Best practice76
  • Privacy80
  • Overall79

CPU

Median across all pages
  • Long tasks10
  • Long task time1.454 s
  • Max Potential FID330 ms
Where the time went
  • Running JavaScript1.611 s
  • Other browser work1.053 s
  • Style & layout620 ms
  • Parsing HTML & CSS546 ms
  • Paint & composite175 ms
  • Garbage collection77 ms
  • Parsing & compiling JavaScript21 ms