🆚 PerformanceObserver vs. XMLHttpRequest
- 📈 XMLHttpRequest is much more popular than PerformanceObserver.
- 🌍 XMLHttpRequest is more popular in all countries.
Statistics based on 3.3M+ analyzed websites. About this data
XMLHttpRequestType
Browser API
Browser API
About
PerformanceObserver is a part of the Performance API that is used to monitor performance measurement events.
XMLHttpRequest (XHR) is a 
JavaScript API to create HTTP requests.
Headquarters
Cambridge, Massachusetts, United States
Cambridge, Massachusetts, United States
w3.orgCategories
Browser APIs › Rank #6
Browser APIs › Rank #2
Popularity
Determined by the number of sites using each technology.
The XMLHttpRequest browser API is 8 times more popular than PerformanceObserver.
Total websites
Market share
Browser APIs
Popularity by country
Determined by the number of sites detected from each country.
XMLHttpRequest is more popular than PerformanceObserver in all countries.
United States
Germany
United Kingdom
Russia
Canada
Australia
India
France
Japan
Netherlands
Awards
- 🥉 Third most popular in the British Virgin Islands in the Browser APIs category.
- ⭐ 4th most popular in Ecuador in the Browser APIs category.
- ⭐ 6th most popular in the United States in the Browser APIs category.
- ⭐ 6th most popular in Australia in the Browser APIs category.
- ⭐ 6th most popular in India in the Browser APIs category.
- 🥇 Most popular in the British Virgin Islands in the Browser APIs category.
- 🥇 Most popular in Seychelles in the Browser APIs category.
- 🥈 Second most popular in the United States in the Browser APIs category.
- 🥈 Second most popular in Germany in the Browser APIs category.
- 🥈 Second most popular in the United Kingdom in the Browser APIs category.
Popularity by domain category
Determined by the number of sites in each category.
XMLHttpRequest is more popular among sites focused on online shopping, business, and marketing and merchandising, while PerformanceObserver is more commonly used on real estate sites.
Online Shopping
Business
Marketing/Merchandising
Fashion/Beauty
Blogs/Wiki
Education/Reference
Internet Services
Entertainment
Health
Travel
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
WebSocket🗃️ 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.