Boomerang is a JavaScript library used for Real User Measurement (RUM) that measures the page load time experienced by actual users. It is designed to report performance metrics back to its parent site, allowing developers to optimize their website's performance based on user experience. Boomerang gathers data such as page load times, network latency, and other important metrics that impact user experience. The library is lightweight and easy to install, making it ideal for developers who want to measure user experience without causing excessive overhead or impacting page loading times. It can be easily integrated into existing web applications and configured to capture specific data points. Its flexibility also allows for customization to capture specific data relevant to individual projects. In summary, Boomerang is a valuable tool for developers who want to gain insight into how their website performs in real-world scenarios, enabling them to optimize their users' experience and improve overall site performance.

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166,459 Companies using Boomerang


redefining beauty.

74$39K - $25K$91K united kingdom..85%

real fitness. real gaming..

53$37K - $2K$42K united kingdom..76%
DASH Water

water. bubbles. wonky* fr..

39$39K - $29K$52K united kingdom..86%
Embr Labs

developing technology to ..

27$38K - $7K$102K united states ..79%

get personally trained by..

13$13K - $14K$12K united kingdom..10%
Bark Social

dogs. beer. coffee – bark..

42$8K - $27K$21K united states ..99%

spacebands create softwar..

11$28K - $31K$591 united kingdom..93%
Cooks Venture

the future of food is reg..

118$22K - $11K$34K united states ..93%

transforming your home in..

22$33K - $37K$95K united states ..100%
Mallows Beauty

to make you glow, inside ..

13$46K - $26K$72K united kingdom..92%
Swag Kicks (Techstars '22..

bringing the global sneak..

67$37K - $9K$107K pakistan79%
Oats Overnight

life is hard, make breakf..

57$13K - $5K$787K united states ..90%
The Ayurveda Co.® - T.A.C..

aapka apna ayurveda/ your..

86$33K - $28K$320K india39%
Pendulum Therapeutics

reinventing health throug..

103$13K - $5K$93K united states ..40%
Digbi Health

gut biome & genetics base..

83$20K - $28K$15K united states ..71%

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How to use Boomerang

Boomerang is a JavaScript library that can be utilized to measure and monitor the page load times experienced by real users. Here are the steps to use Boomerang:

  1. First, you need to include the Boomerang library on your web pages. You can either download Boomerang from GitHub or use a Content Delivery Network (CDN) to host it.

  2. Once Boomerang is included in your web pages, configure it according to your requirements using Boomerang API. For example, you can set the Beacon URL for Boomerang to send data back to your server, adjust the time-out settings, and enable or disable specific plugins based on your needs.

  3. After configuring Boomerang, you can start measuring the page load times of your website using RUM techniques. Boomerang captures various metrics related to page loading such as DNS resolution time, connection time, TTFB (Time to First Byte), and full page load time.

  4. Finally, you can use the data collected by Boomerang to optimize your website's performance and improve user experience. By analyzing different performance metrics, you can identify bottlenecks and optimize your website's resources to deliver faster load times to your users.

Overall, Boomerang provides an easy-to-use yet powerful mechanism to measure page load times from the perspective of real users. It helps to identify performance issues and optimize website resources to deliver better user experiences.

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