🆚 DNS Prefetch vs. XML

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.

Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing structured data in a platform-independent way.

It uses a hierarchical tree structure with custom-defined tags, supports schemas such as DTD and XML Schema for validation, enables namespaces to avoid naming conflicts, and is widely used in formats and protocols such as RSS, SOAP, and configuration files.

Popularity

Determined by the number of sites using each technology.

• 🥇 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.

• 🔥 15th most popular in Japan in the Standards category.
• 🔥 19th most popular in the Czech Republic in the Standards category.
• 🔥 19th most popular in Korea in the Standards category.
• ⬆️ 21st most popular in Germany in the Standards category.
• ⬆️ 21st most popular in Switzerland in the Standards category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• DNS Prefetch vs. Preconnect
• DNS Prefetch vs. Preload
• DNS Prefetch vs. Speculation Rules
• DNS Prefetch vs. Prefetch
• DNS Prefetch vs. Prerender

• XML vs. HTML
• XML vs. JSON
• XML vs. RSD
• XML vs. XHTML
• XML vs. YAML

• DNS Prefetch technology profile
• W3C company profile

• XML technology profile
• W3C company profile