Updated

Technology · Analytics

Boomerang

akamai.github.io
Open source

Boomerang is a JavaScript library designed to measure the page load times experienced by real users, commonly referred to as Real User Measurement (RUM). It collects detailed performance data from user interactions with the website, including load times, navigation timings, and other critical metrics. Boomerang helps developers identify performance bottlenecks and optimize their websites for faster and more reliable user experiences.

Boomerang belongs toJavaScript librariesRUMcategories.

96websites

use it — 3.8% of the 2,555 websites we scanned in the last 12 months

#13of 124

tools in its category seen in our scans (we recognize 278)

6public pages

on UptimeCard — open any of them to see how that site is doing

1.95% of all websites we track run Boomerang

At a glance

UptimeCard's own scans and tests of 2,555 websites · refreshed weekly

How Boomerang sites scoreout of 100 · hover or tap a score for details

53PerformanceLowaverage site: 5095AccessibilityGoodaverage site: 8979Best practicesFairaverage site: 9392SEOGoodaverage site: 92

Page load time

Loads about as fast as the average site

Boomerang sites
4.2 s
All sites
4.3 s

Most Boomerang sites load in 3.1–4.4 s. Home page weight: 1.9 MB vs 3.3 MB for all sites. 5 public sites measured.

Who uses it?

Technology and Software is the biggest group

Technology and Software1.4× avg83%
Business Services17%

Share of 6 classified public sites. “× average” compares with all 961 public sites.

How Boomerang sites are built

Closest partners. The number says how many times more often the tool runs on Boomerang sites than on an average website. Hover a partner for its share of sites.

Akamai mPulse27×Akamai12×Akamai Bot Manager10×Dynatrace8×Tealium8×Adobe Analytics6×Adobe Experience Platform Identity Service6×Java6×Adobe Experience Manager6×

Stacks we see most. Tools that tend to run together with Boomerang on the same websites. The percentage is the share of all 96 Boomerang sites that run the whole stack.

10 stacks · swipe, drag or use the arrows
#1

Boomerang + Akamai + DigiCert + React + Next.js

16.7%16 of 96 sites
#2

Boomerang + Akamai mPulse + DigiCert + React + OneTrust

12.5%12 of 96 sites
#3

Boomerang + Akamai + DigiCert + Adobe Experience Platform Identity Service + Adobe Analytics

11.5%11 of 96 sites
#4

Boomerang + Akamai mPulse + Adobe Experience Platform Launch + Adobe Experience Platform Identity Service + Adobe Analytics

10.4%10 of 96 sites
#5

Boomerang + Akamai + DigiCert + OneTrust + Adobe Experience Manager

8.3%8 of 96 sites
#6

Boomerang + Akamai mPulse + React + Next.js + Emotion

8.3%8 of 96 sites
#7

Boomerang + Akamai mPulse + OneTrust + Adobe Experience Manager + Adobe Experience Platform Launch

7.3%7 of 96 sites
#8

Boomerang + Akamai + Facebook Pixel + Microsoft Advertising + Pinterest Conversion Tag

7.3%7 of 96 sites
#9

Boomerang + React + Next.js + Adobe Experience Platform Identity Service + Adobe Analytics

5.2%5 of 96 sites
#10

Boomerang + Adobe Experience Manager + Adobe Experience Platform Launch + Adobe Experience Platform Identity Service + Brightcove

4.2%4 of 96 sites

Usually installed alongside

The bigger the bubble, the more of the 96 Boomerang sites also run the tool. Colour shows what the tool does. Hover or tap a bubble for details.

Google Tag Manager51%Adobe Experience Platform Launch23%Tealium13%Google Analytics49%Facebook Pixel25%Adobe Analytics18%OneTrust41%Cart Functionality30%Microsoft Advertising19%
Tag managerAnalyticsCookie consentOnline storeAdvertising

Similar tools in its category

JavaScript libraries: 278 tools known, 124 seen in our scans

jQuery1,030 sitesAlternativeSwiper285 sitesAlternativejQuery Migrate245 sitesAlternativeCloudflare Browser Insights218 sitesAlternativejQuery UI217 sitesAlternativeLazySizes114 sitesAlternativeSlick98 sitesAlternativePreact97 sitesAlternativecore-js776 sitesUsed togetherLodash184 sitesUsed togetherlit-html155 sitesUsed togetherlit-element128 sitesUsed together

Websites using Boomerang

96 websites use Boomerang: 3.8% of the 2,555 websites we scanned in the last 12 months. A selection is shown below.

Scores are out of 100: P Performance · A Accessibility · B Best practices · S SEO. Green 80+, yellow 65–79, orange 50–64, red below 50. The dot shows whether our last scan found the site failing (red) or not (green); Red, amber or blue: an active incident on the site's status page (outage, degraded, maintenance) or a failing scan; amber also means a certificate ending within 30 days. Hover the dot for details.

Questions about Boomerang

How many websites use Boomerang?
We found Boomerang on 96 of the 2,555 websites we scanned in the last 12 months (3.8%). 6 of them have a public status page.
What is Boomerang often used with?
Among the websites we scan, Boomerang is often found alongside Akamai (93.8% of its sites), Akamai mPulse (91.7% of its sites), Akamai Bot Manager (60.4% of its sites).
What are the alternatives to Boomerang?
Other javascript libraries tools we recognize include jQuery, core-js, Swiper, jQuery Migrate.

Is your website built with Boomerang?

UptimeCard checks it around the clock, tells you the minute it stops answering, and gives your visitors a status page.

Monitor my site freeCreate a status page