🆚 DNS Prefetch vs. Lazy loading

📈 Lazy loading is slightly more popular than DNS Prefetch.
🌎 Lazy loading is more popular in the United States, Germany, and France.
🌍 DNS Prefetch is more popular in the United Kingdom, Japan, and Italy.

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

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.

Native lazy loading is a technique to load non-critical images and iframes marked with the loading="lazy" attribute only when needed.

Headquarters

Cambridge, Massachusetts, United States

Website

html.spec.whatwg.org

Popularity

Determined by the number of sites using each technology.

Lazy loading performance optimization technology is 1.1 times more popular than DNS Prefetch.

Total websites

Market share

Performance Optimization

Popularity by country

Determined by the number of sites detected from each country.

Lazy loading is more popular in the United States, Germany, and France, while DNS Prefetch is more popular in the United Kingdom, Japan, and Italy.

United States

United Kingdom

Germany

Japan

France

Spain

Italy

Netherlands

Australia

India

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.

🥇 Most popular in the United States in the Performance Optimization category.
🥇 Most popular in Germany in the Performance Optimization category.
🥇 Most popular in France in the Performance Optimization category.
🥇 Most popular in Spain in the Performance Optimization category.
🥇 Most popular in the Netherlands in the Performance Optimization category.

Popularity by domain category

Determined by the number of sites in each category.

Lazy loading is more popular among sites focused on business, marketing and merchandising, and online shopping, while DNS Prefetch is more commonly used on blogs and wiki, entertainment, and technical, business forums sites.

Business

Marketing/Merchandising

Online Shopping

Blogs/Wiki

Education/Reference

Internet Services

Travel

Entertainment

Health

General News

Top sites

Top-ranked sites that use these technologies.

Name

Rank

#13

#14

#16

#23