🆚 DNS Prefetch vs. WCAG

📈 DNS Prefetch is much more popular than WCAG.
🌍 DNS Prefetch is more popular in all countries.
⭐ WCAG is particularly popular in Spain.

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

DNS Prefetch

WCAG

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 Web Content Accessibility Guidelines (WCAG) are an international standard developed by the W3C that defines how to make web content, including text and media, accessible to people with disabilities.

They are technology-agnostic and structured around four core principles (perceivable, operable, understandable, and robust) and define testable success criteria with three conformance levels (A, AA, AAA) used to evaluate accessibility compliance.

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 1,766 times more popular than WCAG.

Total websites

Market share

Standards

Popularity by country

Determined by the number of sites detected from each country.

DNS Prefetch is more popular than WCAG 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.

⬆️ 23rd most popular in Hong Kong in the Standards category.
⬆️ 28th most popular in Greece in the Standards category.
⬆️ 34th most popular in Spain in the Standards category.
⬆️ 35th most popular in Italy in the Standards category.
⬆️ 37th most popular in India in the Standards category.

Popularity by domain category

Determined by the number of sites in each category.

DNS Prefetch is more popular than WCAG 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

#1,324

#2,297

#2,582

#5,462

#6,468