🆚 Less vs. RSD
- 📈 RSD is much more popular than Less.
- 🌍 RSD is more popular in all countries.
Statistics based on 3.6M+ analyzed websites. About this data
Less
RSDType
Standard
Standard
About
Less ("Leaner Style Sheets") is a backward-compatible 
CSS language extension inspired by 
Sass that supports variables, mixins, operations, and functions.
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.
Headquarters
Wesley Hills, New York, United States
Popularity
Determined by the number of sites using each technology.
RSD is 60 times more popular than Less.
Total websites
Market share
Standards
Popularity by country
Determined by the number of sites detected from each country.
RSD is more popular than Less in all countries.
United States
Germany
United Kingdom
France
Spain
Japan
Italy
Australia
Netherlands
Brazil
Awards
- 🔥 14th most popular in the Czech Republic in the Standards category.
- 🔥 14th most popular in Slovakia in the Standards category.
- 🔥 14th most popular in Iceland in the Standards category.
- 🔥 16th most popular in Belarus in the Standards category.
- 🔥 18th most popular in Russia in the Standards category.
- 🥉 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.
Popularity by domain category
Determined by the number of sites in each category.
RSD is more popular among sites focused on business, marketing and merchandising, and blogs and wiki, while Less is more commonly used on sports sites.
Business
Marketing/Merchandising
Blogs/Wiki
Education/Reference
Internet Services
Online Shopping
Entertainment
Travel
Health
Non-Profit/Advocacy/NGO
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
HTML
YAML
GraphQL
XFN🗃️ 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.