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 3.6M+ analyzed websites. About this data

📊 Rankings and Market Share

🏆 WCAG Awards

⚡ Sites Using WCAG

We have data on 615 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 auth.gr #7,060 Greece Greek
6 seg-social.es #7,553 Spain English
7 py.gov.in #11,567 India English
8 sqa.org.uk #21,203 United Kingdom English
9 pseb.ac.in #21,205 India English
10 lancashire.gov.uk #22,143 United Kingdom English
11 unlu.edu.ar #23,898 Argentina Spanish
12 ine.pt #25,091 Portugal English
13 momah.gov.sa #29,500 Saudi Arabia Arabic
14 sprintesport.it #38,220 Italy Italian
15 itvcita.com #40,316 Spain Spanish
16 aytoburgos.es #49,126 Spain European Spanish
17 casareal.es #49,701 Spain Spanish
18 hkeaa.edu.hk #53,337 Hong Kong Chinese
19 fundae.es #56,192 Spain Spanish
20 ernet.in #58,041 India English

📈 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 22.6%
  • United States 15.2%
  • Hong Kong 12.8%
  • Greece 10.4%
  • Italy 9.4%
  • United Kingdom 5.7%
  • India 4.3%
  • Japan 2.1%
  • Portugal 1.9%
  • Other 15.6%

Most WCAG users speak English, Spanish, or Italian.

  • English 41.7%
  • Spanish 20.8%
  • Italian 9.5%
  • Greek 9.3%
  • Chinese 6.9%
  • Japanese 2.3%
  • Catalan 2.1%
  • Portuguese 1.8%
  • German 1.1%
  • Other 4.5%

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

  • .com 24.4%
  • .es 13.5%
  • .gr 8.1%
  • .gov.hk 8%
  • .org 7.5%
  • .it 7.3%
  • .net 2.6%
  • .gov.in 2.3%
  • .eu 1.8%
  • Other 24.5%

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

  • Government/Military 19.7%
  • Business 14.5%
  • Education/Reference 13.2%
  • Health 9.9%
  • Public Information 7.2%
  • Marketing/Merchandising 6.6%
  • Internet Services 3.9%
  • Real Estate 3.3%
  • General News 3.3%
  • Other 18.4%

🔢 WCAG Versions

The most common version of WCAG is 2, used by 61.3% of sites where versions were detected.

  • 2 61.3%
  • 1 39%

🔢 WCAG Levels

The most common level of WCAG is AA, used by 77% of sites where levels were detected. In addition, 14.3% of sites use WCAG AAA, and 12.6% use WCAG A.

  • AA 77%
  • AAA 14.3%
  • A 12.6%

🕵️ 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 and 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.
5
RSD
Wesley Hills, New York, United States

An XML format that allows client software to discover services provided by web publishing systems.
10
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 49 government sites in Hong Kong, 14 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