⚡ 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 detected on 93.8% of websites from Korea.

Statistics based on 32K+ analyzed websites. About this data

⭐ 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 93.9%, followed by HTML with 84.7% and Open Graph with 73.2%.

CSS 93.9%
HTML 84.7%
Open Graph 73.2%
ARIA 41%
Preconnect 15.3%
XHTML 14.2%
JSON 10.7%
RSD 9.3%
SearchAction 9.2%
DNS Prefetch 8.7%
Preload 8.5%
oEmbed 6.8%
Speculation Rules 6.4%
XFN 6.3%
Pingback 2%

🚀 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.

3. Open Graph ^(-1)
5. Preconnect ^(-6)
6. XHTML ^(-9)
11. Preload ^(-1)
16. OAuth ^(-2)
18. OpenID ^(-8)
19. IAB TCF ^(-2)
20. XML ^(-12)
22. IDN ^(-18)
24. Text ^(-10)

✨ Top Web Standards

Below is a more detailed list of the top 25 of the 47 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.	93.9%
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.	84.7%
3	Open Graph Menlo Park, California, United States A web metadata standard that defines how webpages are described as structured objects for use in social graphs and enables their consistent representation.	73.2%
4	ARIA Cambridge, Massachusetts, United States A technical specification from the W3C Web Accessibility Initiative that defines how to improve the accessibility of web content and applications, particularly those with dynamic interfaces and custom controls.	41%
5	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML <link> elements instructs browsers to establish early connections to external origins before resources are requested.	15.3%
6	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.	14.2%
7	JSON A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.	10.7%
8	RSD Wesley Hills, New York, United States An XML format that allows client software to discover services provided by web publishing systems.	9.3%
9	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	9.2%
10	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML <link> elements instructs web browsers to resolve domain names for external resources before those resources are requested.	8.7%
11	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML <link> elements instructs web browsers to fetch important resources early before they are requested during page rendering.	8.5%
12	oEmbed San Francisco, California, United States An open format that allows websites to embed representations of external URLs such as videos, images, and posts from third-party services.	6.8%
13	Speculation Rules Mountain View, California, United States A browser API that improves navigation performance by prefetching or prerendering pages that users are likely to visit next.	6.4%
14	XFN United States An HTML microformat that represents human relationships by adding metadata to hyperlinks between websites and profiles.	6.3%
15	Pingback An XML-RPC-based protocol that allows websites to notify each other when one links to another.	2%
16	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%
17	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML <link> elements tells the browser to download resources that are likely to be needed for future navigation when the current page is idle.	0.8%
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.	0.6%
19	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%
20	XML Cambridge, Massachusetts, United States A markup language and file format for storing, transmitting, and reconstructing structured data in a platform-independent way.	0.6%
21	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.	0.5%
22	IDN Internationalized Domain Names allow people around the world to use domain names in local languages, such as Arabic, Chinese, or Cyrillic.	0.5%
23	YAML Seattle, Washington, United States A human-readable data serialization language designed for representing structured data and exchanging it between systems and programming languages.	0.4%
24	Text Cambridge, Massachusetts, United States The plain text document format.	0.4%
25	OpenSearch Seattle, Washington, United States A specification that describes a website's search engine, enabling browsers, apps, and services to discover and integrate it.	0.3%

👉 See Also

🌎 Standards in other countries

🗃️ 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 32,090 websites from Korea.
We currently track the presence of 56 standards across the web.
Of these, 47 were detected on websites from Korea.
Statistics were last calculated on November 2, 2026.
For more details, see our methodology and disclaimer.