⚡ Standards in Hong Kong

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

Hong Kong is an East Asian special administrative region of China with a population of around 7.5 million people.

According to our statistics, standards are used on 94.7% of websites from Hong Kong.

⭐ Most Popular in 2026

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

The most popular is CSS with an impressive share of 90.9%, followed by HTML with 88.4% and Open Graph with 24.7%.

🚀 Highlights

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

✨ Top Web Standards

Below is a more detailed list of the top 25 of the 46 standards used on sites from Hong Kong, ranked by their market share.

RankNameMarket 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.

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.

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.

4
DNS Prefetch
Cambridge, Massachusetts, United States

The rel="dns-prefetch" attribute on HTML elements instructs web browsers to resolve domain names for external resources before those resources are requested.

5
JSON

A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.

6
XHTML
Cambridge, Massachusetts, United States

An XML-based markup language that extends HTML 4.

7
RSD
Wesley Hills, New York, United States

An XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.

8
Preload
Cambridge, Massachusetts, United States

The rel="preload" attribute on HTML elements instructs web browsers to fetch important resources early before they are requested during page rendering.

9
Preconnect
Cambridge, Massachusetts, United States

The rel="preconnect" attribute on HTML elements instructs browsers to establish early connections to external origins before resources are requested.

10
SearchAction
Cambridge, Massachusetts, United States

A structured data type from Schema.org that describes a website's search capability.

11
XFN
United States

An HTML microformat that represents human relationships by adding metadata to hyperlinks between websites and profiles.

12
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.

13
Pingback

A method for web authors to request notification when somebody links to one of their documents.

14
YAML
Seattle, Washington, United States

A human-readable data serialization language designed for representing structured data and exchanging it between systems and programming languages.

15
RDF
Cambridge, Massachusetts, United States

A W3C standard model for describing and exchanging graph-based data on the web.

16
Prefetch
Cambridge, Massachusetts, United States

The rel="prefetch" attribute on HTML elements tells the browser to download resources that are likely to be needed for future navigation when the current page is idle.

17
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.

18
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.

19
Sass

A stylesheet language that compiles to CSS and allows developers to use variables, nested rules, mixins, and functions.

20
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.

21
Text
Cambridge, Massachusetts, United States

The plain text document format.

22
GraphQL
Menlo Park, California, United States

A data query and manipulation language for APIs typically used for remote client-server communications.

23
Trace Context
Cambridge, Massachusetts, United States

Defines standard HTTP headers and a value format for propagating context information that enables distributed tracing.

24
WCAG
Cambridge, Massachusetts, United States

The Web Content Accessibility Guidelines are an international standard developed by the W3C that defines how to make web content, including text and media, accessible to people with disabilities.

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.

👉 See Also

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