🆚 TrackJS vs. Web Vitals
- 📈 Web Vitals is much more popular than TrackJS.
- 🌎 Web Vitals is more popular in the United States, Indonesia, and Brazil.
- 🌍 TrackJS is more popular in Estonia, Luxembourg, and the British Virgin Islands.
TrackJS
Web VitalsType
About
TrackJS is a frontend-focused error monitoring platform that captures 
JavaScript errors and runtime issues directly from users' browsers.
It uses a lightweight Browser Agent script to automatically record errors such as exceptions, failed network requests, and console messages, and provides detailed telemetry including user actions, network activity, and logs leading up to each error.
The Web Vitals library is a lightweight JavaScript library for measuring Core Web Vitals and related performance metrics on real users in the browser.
It is a modular package of about 2 KB that exposes functions for metrics such as CLS, LCP, INP, FCP, and TTFB, uses the PerformanceObserver API with buffered entries to capture data even after page load, and supports integration with 
Google Analytics and 
Google Tag Manager.
Headquarters
GitHubPricing
(100K page views)$49/month
(1M page views)$99/month
(5M+ page views)$199+/month
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- 🔥 13rd most popular in Germany in the Application Monitoring category.
- 🔥 14th most popular in the United Kingdom in the Application Monitoring category.
- 🔥 14th most popular in Australia in the Application Monitoring category.
- 🥇 Most popular in Indonesia in the Application Monitoring category.
- 🥇 Most popular in Argentina in the Application Monitoring category.
- 🥇 Most popular in Cambodia in the Application Monitoring category.
- 🥈 Second most popular in Indonesia in the SEO category.
- 🥈 Second most popular in Argentina in the SEO category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
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Google company profile🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,375,483 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.