🆚 WebSocket vs. XMLHttpRequest
- 📈 XMLHttpRequest is much more popular than WebSocket.
- 🌎 XMLHttpRequest is more popular in the United States, Germany, and the United Kingdom.
- 🌍 WebSocket is more popular in San Marino and Montserrat.
WebSocket
XMLHttpRequestType
About
WebSocket is a communication protocol that enables persistent, full-duplex data exchange between a client and a server over a single TCP connection.
It maintains a long-lived connection that allows low-latency message exchange, supports both text and binary frames, minimizes overhead by avoiding repeated request headers, and enables servers to push data to clients in real time.
XMLHttpRequest (XHR) is a 
JavaScript API for sending HTTP and HTTPS requests and receiving data from web servers without reloading the current page.
It supports both synchronous and asynchronous communication, allows monitoring of upload and download progress, and can exchange data in formats such as text, 
XML, 
JSON, and binary content.
Headquarters
datatracker.ietf.orgCategories
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
- ⭐ 4th most popular in Kazakhstan in the Browser APIs category.
- ⭐ 4th most popular in Azerbaijan in the Browser APIs category.
- ⭐ 5th most popular in Russia in the Browser APIs category.
- ⭐ 5th most popular in Ukraine in the Browser APIs category.
- ⭐ 5th most popular in Belarus 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.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Fetch🗃️ 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 3,531,795 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.