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Synthetic JavaScript
See the impact JavaScript has on the CPU. Identify scripts with excessive Long Task times.
Monitor JavaScript performance
Open filter controls
Site:
CNN
Page Label:
Home
Browser:
Apple iPad
Region:
US West Coast
Day Start:
May 25
Day End:
Jun 25
Site
Google
Facebook
Youtube
Yahoo
Baidu
Amazon
Wikipedia
Taobao
Twitter
Tencent
LinkedIn
Weibo
Tmall
Ebay
Bing
Daily Motion
CNN
BBC
Stack Overflow
Netflix
IMDB
Apple
Reddit
cars.com
Etsy
Airbnb
Forbes
NY Times
Walmart
Zillow
Wells Fargo
ESPN
AccuWeather
Home Depot
Steve Souders
LEGO (US)
LEGO (DE)
IKEA (US)
IKEA (DE)
Page Label
Home
Browser
Apple iPad
Apple iPhone 6
Apple iPhone X
Chrome
Firefox
Google Nexus 10
Samsung Galaxy S8
Region
US West Coast
Date Range
1 Day
3 Days
1 Week
2 Weeks
1 Month
3 Months
Last Year
Custom
Compare Previous Period
Previous Start
Previous End
Day Start
Day End
GO
Chart Size
Small
Medium
Large
Summary Metric
Aggregate
Minimum
Maximum
Latest
Trends
TV Mode
Dark Theme
Share View
Latest Javascript Waterfall
OPTIONS
SHOW MAIN THREAD JS ACTIVITY OVER
MS
MARK MAIN THREAD JS ACTIVITY AS RED OVER
MS
DONE
HTML
BLOCKING JS
JS
JS MORE THAN {{ activity }}MS
JS MORE THAN {{ error }}MS
Latest Script Time By Domain
Domain
Scripts
Time over {{ activity }}ms
Time over {{ error }}ms
Total
{{ domain.name }}
{{ domain.scripts }}
{{ domain.good.toFixed(2) }} ms
{{ domain.bad.toFixed(2) }} ms
{{ domain.total.toFixed(2) }} ms
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