🆚 DNS Prefetch vs. WebAssembly
- 📈 DNS Prefetch is much more popular than WebAssembly.
- 🌍 DNS Prefetch is more popular in all countries.
DNS Prefetch
WebAssemblyType
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.
WebAssembly (Wasm) is a portable binary instruction format that runs in modern web browsers with near-native performance, enabling frontend coding in languages that were not traditionally used for web interfaces, such as 
C/C++, 
C#, and 
Rust.
It is designed as a low-level compilation target with a compact binary format, fast execution, memory-safe sandboxing, and a stack-based virtual machine. It also integrates with 
JavaScript to access Web APIs and share memory efficiently.
Headquarters
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
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.
- ⬆️ 26th most popular in Denmark in the Standards category.
- ⬆️ 33rd most popular in Canada in the Standards category.
- ⬆️ 33rd most popular in Russia in the Standards category.
- ⬆️ 33rd most popular in Brazil in the Standards category.
- ⬆️ 33rd most popular in India in the Standards category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,814,833 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.