Standards Ranked #25–#44 on the Web in Bulgaria in 2026

📈 Standards Ranked #26–#44 in Bulgaria

Web standards are a set of guidelines and specifications that define and describe various aspects of the World Wide Web.

Bulgaria is a Southeastern European country with a population of around 6.5 million people.

The following list shows the standards ranked from 26th to 44th out of 44 used on websites in Bulgaria.

Rank	Name	Market share
26	XML Cambridge, Massachusetts, United States A markup language and file format for storing, transmitting, and reconstructing arbitrary data.	0.4%
27	GraphQL Menlo Park, California, United States A data query and manipulation language for APIs typically used for remote client-server communications.	0.4%
28	Sitemap A file in XML format that allows webmasters to inform search engines about URLs on a website that are available for web crawling.	0.3%
29	Text Cambridge, Massachusetts, United States The plain text document format.	0.2%
30	Sass A stylesheet language that compiles to CSS and allows developers to use variables, nested rules, mixins, and functions.	0.2%
31	IDN Internationalized Domain Names allow people around the world to use domain names in local languages, such as Arabic, Chinese, or Cyrillic.	0.2%
32	Markdown Philadelphia, Pennsylvania, United States A markup language used to add formatting to plain text documents.	0.09%
33	RDF Cambridge, Massachusetts, United States A W3C standard model to describe and exchange graph data on the web.	0.08%
34	Prerender The rel="prerender" attribute on HTML elements.	0.07%
35	Humans.txt A text file that can be created by developers to list the people who have contributed to a website.	0.05%
36	WCAG Cambridge, Massachusetts, United States The Web Content Accessibility Guidelines are a set of recommendations for making web content more accessible, developed by W3C.	0.05%
37	WebAssembly A portable binary code format that can be run in modern web browsers with near-native performance.	0.03%
38	ESI Cambridge, Massachusetts, United States A simple markup language used to define web page components for dynamic assembly and delivery of web applications at the edge of the Internet.	0.02%
39	Webmention Cambridge, Massachusetts, United States A simple protocol to notify any URL when a website links to it, and for web pages to request notifications when somebody links to them.	0.02%
40	LLMs.txt A proposed standard that provides structured content and instructions to guide large language models in understanding and summarizing a website's content.	0.02%
41	XMP San Jose, California, United States An ISO standard for creating, processing, and exchanging metadata for digital documents.	0.02%
42	Onion Sites are websites on the dark web that use the .onion top-level domain and are only accessible through online routing through Tor.	0.008%
43	AdChoices New Providence, New Jersey, United States A self-regulatory standard for online interest-based advertising that gives consumers enhanced control over the collection and use of their data to deliver relevant ads.	0.008%
44	JSON Web Token Fremont, California, United States An open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.	0.008%

👉 See Also

🌎 Standards in other countries

Data is based on the analysis of 12,911 websites from Bulgaria.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.