🆚 LLMs.txt vs. RSD
We only track llms.txt files referenced in a page's HTML source, so usage statistics may be incomplete.
LLMs.txt
RSDType
Standard
Standard
About
The llms.txt file is a proposed standard that provides structured content and instructions to guide large language models (LLMs) in understanding and summarizing a website's content.
It typically resides in the root directory and uses the 
Markdown format.
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.
Total websites
Market share
Standards
Popularity by country
Determined by the number of sites detected from each country.
United States
Germany
United Kingdom
Japan
Spain
Italy
France
Australia
Netherlands
Brazil
Awards
- ⬆️ 22nd most popular in Taiwan in the Standards category.
- ⬆️ 24th most popular in Japan in the Standards category.
- ⬆️ 29th most popular in China in the Standards category.
- ⬆️ 31st most popular in Turkey in the Standards category.
- ⬆️ 32nd most popular in India in the Standards category.
- ⭐ 4th most popular in El Salvador in the Standards category.
- ⭐ 4th most popular in Bhutan in the Standards category.
- ⭐ 5th most popular in Iran in the Standards category.
- ⭐ 5th most popular in Bulgaria in the Standards category.
- ⭐ 5th most popular in Lithuania in the Standards category.
Popularity by domain category
Determined by the number of sites in each category.
Business
Marketing/Merchandising
Blogs/Wiki
Education/Reference
Internet Services
Entertainment
Travel
Health
Non-Profit/Advocacy/NGO
General News
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 4,001,723 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.