🆚 RSD vs. WebAssembly
- 📈 RSD is much more popular than WebAssembly.
- 🌍 RSD is more popular in all countries.
RSD
WebAssemblyType
About
Really Simple Discovery (RSD) is an 
XML format that allows client software to discover services provided by web publishing systems.
It helps clients find endpoints for reading, editing, and interacting with website content through APIs.
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
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
- 🥉 Third most popular in El Salvador in the Standards category.
- 🥉 Third most popular in Bhutan in the Standards category.
- 🥉 Third most popular in Libya in the Standards category.
- ⭐ 4th most popular in Brazil in the Standards category.
- ⭐ 4th most popular in Iran in the Standards category.
- ⬆️ 32nd most popular in Denmark in the Standards category.
- ⬆️ 33rd most popular in Poland in the Standards category.
- ⬆️ 33rd most popular in Brazil in the Standards category.
- ⬆️ 34th most popular in the Netherlands in the Standards category.
- ⬆️ 35th most popular in Russia 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.
XFN
CSS
HTML
JSON
YAML🗃️ 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 3,603,958 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.