🆚 DNS Prefetch vs. ESI

📈 DNS Prefetch is much more popular than ESI.
🌍 DNS Prefetch is more popular in all countries.
⭐ ESI is particularly popular in France.

Statistics based on 3.5M+ analyzed websites. About this data

DNS Prefetch

ESI

Type

Performance optimization technology

Standard

About

The rel="dns-prefetch" attribute on HTML <link> elements instructs web browsers to resolve domain names for external resources before those resources are requested.

It is commonly used for third-party domains serving scripts, fonts, analytics, advertisements, or media files, helping reduce DNS lookup latency and improve loading performance for external connections.

Edge Side Includes (ESI) is a simple markup language used to define web page components for dynamic assembly and delivery of web applications at the edge of the Internet.

Headquarters

Cambridge, Massachusetts, United States

Website

html.spec.whatwg.org

w3.org/TR/esi-lang/ #12,884

Popularity

Determined by the number of sites using each technology.

DNS Prefetch performance optimization technology is 2,190 times more popular than ESI.

Total websites

Market share

Standards

Popularity by country

Determined by the number of sites detected from each country.

DNS Prefetch is more popular than ESI in all countries.

United States

United Kingdom

Japan

Germany

France

Spain

Italy

Australia

Netherlands

Canada

Awards

🥇 Most popular in the United Kingdom in the Performance Optimization category.
🥇 Most popular in Japan in the Performance Optimization category.
🥇 Most popular in Italy in the Performance Optimization category.
🥇 Most popular in Australia in the Performance Optimization category.
🥇 Most popular in Canada in the Performance Optimization category.

⬆️ 30th most popular in Finland in the Standards category.
⬆️ 37th most popular in France in the Standards category.
⬆️ 44th most popular in Germany in the Standards category.

Popularity by domain category

Determined by the number of sites in each category.

DNS Prefetch is more popular than ESI in all market segments.

Business

Marketing/Merchandising

Blogs/Wiki

Online Shopping

Education/Reference

Internet Services

Entertainment

Travel

Health

General News

Top sites

Top-ranked sites that use these technologies.

Name

Rank

#13

#14

#16

#23

Name

Rank

#451

#1,981

#2,616

#3,341

#4,352