🆚 DNS Prefetch vs. Speculation Rules

📈 DNS Prefetch is slightly more popular than Speculation Rules.
🌎 DNS Prefetch is more popular in the United States, the United Kingdom, and Japan.
🌍 Speculation Rules is more popular in Germany, Switzerland, and Austria.

Statistics based on 3.8M+ analyzed websites. About this data

DNS Prefetch

Speculation Rules

Type

Performance optimization technology

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 Speculation Rules API is a browser API that improves navigation performance by prefetching or prerendering pages that users are likely to visit next.

It uses JSON-based rules embedded in HTML or HTTP headers, and is designed as a successor to older techniques such as Prefetch and the deprecated Prerender attribute.

Headquarters

Cambridge, Massachusetts, United States

Mountain View, California, United States

Website

html.spec.whatwg.org

Popularity

Determined by the number of sites using each technology.

DNS Prefetch performance optimization technology is 1.1 times more popular than Speculation Rules.

Total websites

Market share

Performance Optimization

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 Speculation Rules is more popular in Germany, Switzerland, and Austria.

United States

United Kingdom

Japan

Germany

France

Spain

Italy

Australia

Netherlands

Canada

Awards

🥇 Most popular in Japan in the Performance Optimization category.
🥇 Most popular in Canada in the Performance Optimization category.
🥇 Most popular in South Africa in the Performance Optimization category.
🥇 Most popular in China in the Performance Optimization category.
🥇 Most popular in Macedonia in the Performance Optimization category.

🥈 Second most popular in Germany in the Performance Optimization category.
🥈 Second most popular in Switzerland in the Performance Optimization category.
🥈 Second most popular in Iran in the Performance Optimization category.
🥈 Second most popular in Finland in the Performance Optimization category.
🥈 Second most popular in Trinidad and Tobago in the Performance Optimization category.

Popularity by domain category

Determined by the number of sites in each category.

DNS Prefetch is more popular among sites focused on business, blogs and wiki, and online shopping, while Speculation Rules is more commonly used on marketing and merchandising, non-profit, advocacy and NGO, and recreation and hobbies sites.

Business

Blogs/Wiki

Online Shopping

Marketing/Merchandising

Education/Reference

Internet Services

Entertainment

Health

Non-Profit/Advocacy/NGO

General News

Top sites

Top-ranked sites that use these technologies.

Name

Rank

#12

#13

Name

Rank

#17

#83

#140

#142

#228