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Using Heat Maps to improve Web Performance Metrics

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Sergey C.


Measurement of web page performance is critical when you need to track improvements and justify performance optimization budgets.

Over the years, multitude of metrics were developed, from Time To First Byte and Page Load Time all the way to more modern and sophisticated metrics like Time to First Paint, ATF and Speed Index. Web browsers also added multiple APIs to allow more visibility into the stack with Navigation Timing, Resource Timing as well as User Timing APIs.

The challenge with performance metrics is that they are all proxies for user experience and don’t necessarily translate directly into user satisfaction and business gains.

Sergey Chernyshev will review the reasons why we need to track performance and will introduce a new method for improving existing performance metrics using Heat Maps generated based on business requirements.

Sergey will also demonstrate a set of video-processing scripts built on top of famous WebPageTest performance measurement API to allow the use of these improved metrics in automated monitoring.

Sergey Chernyshev ( (@sergeyche (, is web performance enthusiast, open source hacker and web addict. He has 20 years of web development and operations experience and organizes New York Web Performance Meetup Group.

As always, we are going to have geekaways with geeky prizes provided by our sponsors.


6:30 - Arrive at Spotify, meet other members
6:45 - Event starts
7:00 - Using Heat Maps to improve Web Performance Metrics (Sergey Chernyshev)
8:00 - Q&A
8:15 - "Books and Stuff" geekaways
8:30 - Open Discussion, Networking


45 West 18th St
7th floor
New York, NY

Directions on Google Maps:

Entrance on StreetView:

Our Sponsors:

• Akamai® ( is the leading cloud platform for helping enterprises provide secure, high-performing user experiences on any device, anywhere.

• SOASTA (’s web and mobile app test automation solution enables developers, QA professionals, and IT Operations teams to test with unprecedented speed, scale and precision.

45 W 18th St, 7th floor · New York, NY
21 spots left