⚡ Standards in Korea

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

Korea is an East Asian country with a population of around 52 million people.

According to our statistics, standards are used on 93.9% of websites from Korea.

⭐ Most Popular in 2026

The following chart shows the top standards on websites in Korea in 2026, based on market share.

The most popular is CSS with an impressive share of 93.3%, followed by HTML with 83.8% and Open Graph with 70.7%.

CSS 93.3%
HTML 83.8%
Open Graph 70.7%
XHTML 15.2%
Preconnect 14.3%
RSD 10.7%
JSON 10%
SearchAction 9.8%
DNS Prefetch 9.4%
Preload 7.4%
XFN 7%
Speculation Rules 3.6%
Pingback 2.3%
OAuth 1.4%
Acceptable Ads 0.9%

🚀 Highlights

Here is a list of the top standards that are more popular in Korea than worldwide.
Differences between global and country rankings are shown in parentheses.

4. XHTML ^(-9)
5. Preconnect ^(-3)
14. OAuth ^(-2)
16. IAB TCF ^(-2)
17. IDN ^(-18)
18. OpenID ^(-6)
20. XML ^(-8)
22. Text ^(-5)

✨ Top Web Standards

Below is a more detailed list of the top 25 of the 43 standards used on sites from Korea, ranked by their market share.

Rank	Name	Market share
1	CSS Cambridge, Massachusetts, United States A stylesheet language used to control the presentation of HTML and XML documents, defining layout, colors, typography, and responsive behavior across different devices.	93.3%
2	HTML Cambridge, Massachusetts, United States A markup language used to create web pages and is the de facto standard for documents displayed in web browsers.	83.8%
3	Open Graph Menlo Park, California, United States Enables any web page to become a rich object in a social graph.	70.7%
4	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.	15.2%
5	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	14.3%
6	RSD An XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.	10.7%
7	JSON A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.	10%
8	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	9.8%
9	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	9.4%
10	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	7.4%
11	XFN An HTML microformat that provides a simple way to represent human relationships using links.	7%
12	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	3.6%
13	Pingback A method for web authors to request notification when somebody links to one of their documents.	2.3%
14	OAuth Fremont, California, United States An open standard authorization protocol that allows applications to obtain limited access to user accounts without sharing passwords across web, mobile, and desktop environments.	1.4%
15	Acceptable Ads Berlin, Germany A set of criteria defined by the independent Acceptable Ads Committee that allows publishers to reach ad-blocking users with respectful, non-intrusive and relevant ads.	0.9%
16	IAB TCF Brussels, Belgium An open-source industry standard developed by IAB Europe that helps companies comply with GDPR and ePrivacy requirements when processing personal data in digital advertising ecosystems.	0.6%
17	IDN Internationalized Domain Names allow people around the world to use domain names in local languages, such as Arabic, Chinese, or Cyrillic.	0.5%
18	OpenID San Ramon, California, United States A decentralized authentication protocol based on OAuth 2.0 that enables applications to verify a user's identity through an external identity provider instead of managing credentials directly.	0.5%
19	YAML A data serialization language designed to be human friendly and work well with modern programming languages for common everyday tasks.	0.4%
20	XML Cambridge, Massachusetts, United States A markup language and file format for storing, transmitting, and reconstructing arbitrary data.	0.4%
21	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	0.4%
22	Text Cambridge, Massachusetts, United States The plain text document format.	0.4%
23	OpenSearch Seattle, Washington, United States A specification that describes a website's search engine, enabling browsers, apps, and services to discover and integrate it.	0.4%
24	Sass A stylesheet language that compiles to CSS and allows developers to use variables, nested rules, mixins, and functions.	0.3%
25	Less A backward-compatible CSS language extension inspired by Sass that supports variables, mixins, operations, and functions.	0.3%

👉 See Also

🌎 Standards in other countries

Data is based on the analysis of 25,802 websites from Korea.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.