WCAG

W3C, Cambridge, Massachusetts, United States

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

They are technology-agnostic and structured around four core principles (perceivable, operable, understandable, and robust) and define testable success criteria with three conformance levels (A, AA, AAA) used to evaluate accessibility compliance.

WCAG is widely adopted in legal and regulatory frameworks as a baseline for accessible websites and applications.

According to our data, WCAG is detected on 0.02% of all websites.

Statistics based on 3.8M+ analyzed websites. About this data

📊 Rankings and Market Share

🏆 WCAG Awards

⚡ Sites Using WCAG

We have data on 661 websites that use WCAG. Here is a list of some of the top ranked ones.

The highest rated site using WCAG is metoffice.gov.uk.

#WebsiteRankCountryLanguage
1 metoffice.gov.uk #1,324 United Kingdom English
2 comunidad.madrid #2,297 Spain Spanish
3 ksu.edu.sa #2,582 Saudi Arabia Arabic
4 sdpnoticias.com #6,468 Mexico Spanish
5 efe.com #6,565 Spain Spanish
6 auth.gr #7,060 Greece Greek
7 seg-social.es #7,553 Spain Spanish
8 py.gov.in #11,567 India English
9 hellenicparliament.gr #18,224 Greece Greek
10 sqa.org.uk #21,203 United Kingdom English
11 pseb.ac.in #21,205 India English
12 lancashire.gov.uk #22,143 United Kingdom English
13 unlu.edu.ar #23,898 Argentina Spanish
14 ine.pt #25,091 Portugal English
15 momah.gov.sa #29,500 Saudi Arabia Arabic
16 sprintesport.it #38,220 Italy Italian
17 itvcita.com #40,316 Spain Spanish
18 aytoburgos.es #49,126 Spain European Spanish
19 casareal.es #49,701 Spain Spanish
20 hkeaa.edu.hk #53,337 Hong Kong Chinese

📈 Usage Statistics

Most of the sites that use WCAG:

Most of the sites using WCAG are from Spain, the United States, and Hong Kong.

  • Spain 21.7%
  • United States 18%
  • Hong Kong 14.5%
  • Greece 9.9%
  • Italy 8.9%
  • United Kingdom 5.3%
  • India 4%
  • Japan 1.9%
  • Portugal 1.8%
  • Other 14%

Most WCAG users speak English, Spanish, or Greek.

  • English 44%
  • Spanish 20%
  • Greek 8.8%
  • Italian 8.5%
  • Chinese 7.9%
  • Catalan 2%
  • Japanese 1.8%
  • Portuguese 1.7%
  • German 1.2%
  • Other 4.1%

WCAG is especially popular on .com, .es, and .gov.hk top-level domains.

  • .com 25.6%
  • .es 12.7%
  • .gov.hk 8.8%
  • .org 8.2%
  • .gr 7.7%
  • .it 6.7%
  • .net 2.6%
  • .gov.in 2%
  • .hk 1.8%
  • Other 23.9%

The primary market segments for websites utilizing WCAG include government and military, business, and education and reference.

  • Government/Military 18.9%
  • Business 15.2%
  • Education/Reference 12.2%
  • Health 9.1%
  • Public Information 7.3%
  • Marketing/Merchandising 6.1%
  • Real Estate 4.3%
  • Internet Services 3.7%
  • General News 3.7%
  • Other 19.5%

🔢 WCAG Versions

The most common version of WCAG is 2, used by 65.4% of sites where versions were detected.

  • 2 65.4%
  • 1 34.6%

🔢 WCAG Levels

The most common level of WCAG is AA, used by 77.5% of sites where levels were detected. In addition, 14.2% of sites use WCAG AAA, and 11.5% use WCAG A.

  • AA 77.5%
  • AAA 14.2%
  • A 11.5%

🕵️ Similar Technologies

These are some of the best WCAG alternatives.

RankName
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.
4
JSON

A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.
6
RSD
Wesley Hills, New York, United States

An XML format that allows client software to discover services provided by web publishing systems.
11
XFN
United States

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

🆚 Compare Alternatives

Compare WCAG to…

💬 Frequently Asked Questions

What is the company behind WCAG?

WCAG is owned by World Wide Web Consortium, Inc., headquartered in Cambridge, Massachusetts, United States.

Which country uses WCAG the most?

The majority of WCAG users are from Spain.

Who uses WCAG?

According to our data, WCAG is used on hundreds of sites, including such established ones as metoffice.gov.uk, comunidad.madrid, and ksu.edu.sa.

Is WCAG used on government websites?

Yes, for example, it is used by metoffice.gov.uk, py.gov.in, and lancashire.gov.uk. In total, we found WCAG on 58 government sites in Hong Kong, 13 in India, and 2 in the United States.

Do academic institutions use WCAG?

Yes. The most prominent of these are ksu.edu.sa, pseb.ac.in, and unlu.edu.ar.

What are the alternatives to WCAG?

Alternatives and possible competitors to WCAG may include CSS, HTML, and JSON.

👉 See Also

🗃️ About This Data