🆚 DNS Prefetch vs. Trace Context

📈 DNS Prefetch is much more popular than Trace Context.
🌎 DNS Prefetch is more popular in the United States, the United Kingdom, and Japan.
🌍 Trace Context is more popular in the British Virgin Islands.

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

DNS Prefetch

Trace Context

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.

The Trace Context specification defines standard HTTP headers and a value format for propagating context information that enables distributed tracing.

Headquarters

Cambridge, Massachusetts, United States

Website

html.spec.whatwg.org

w3.org #12,884

Popularity

Determined by the number of sites using each technology.

DNS Prefetch performance optimization technology is 33 times more popular than Trace Context.

Total websites

Market share

Standards

Popularity by country

Determined by the number of sites detected from each country.

DNS Prefetch is more popular in the United States, the United Kingdom, and Japan, while Trace Context is more popular in the British Virgin Islands.

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.

⭐ 6th most popular in the British Virgin Islands in the Standards category.
🔥 13rd most popular in Ecuador in the Standards category.
🔥 15th most popular in Qatar in the Standards category.
🔥 16th most popular in Australia in the Standards category.
🔥 16th most popular in Belgium in the Standards category.

Popularity by domain category

Determined by the number of sites in each category.

DNS Prefetch is more popular among sites focused on business, marketing and merchandising, and online shopping, while Trace Context is more commonly used on fashion and beauty sites.

Business

Marketing/Merchandising

Online Shopping

Blogs/Wiki

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

#75

#86

#120

#132

#139