RDFa

W3C, Cambridge, Massachusetts, United States

RDFa (Resource Description Framework in Attributes) is an extension to HTML5 that adds attributes to markup things like people, places, events, recipes, and reviews.

According to our data, RDFa is the 9th most popular semantic markup technology on the web.
It has 1.1% of the semantic markup market share and is detected on 0.8% of all websites.

📊 Rankings and Market Share

🏆 RDFa Awards

⚡ Sites Using RDFa

We have data on 21,274 websites that use RDFa semantic markup technology. Here is a list of some of the top ranked ones.

The highest rated site using RDFa is instructure.com.

#WebsiteRankCountryLanguage
1 instructure.com #44 United States English
2 mit.edu #70 United States English
3 deviantart.com #156 English
4 en.wikipedia.org United States English
5 canada.ca #249 Canada English
6 apps.apple.com United States American English
7 itunes.apple.com United States American English
8 coolmathgames.com #580 English
9 support.apple.com United States American English
10 de.wikipedia.org United States German
11 fr.wikipedia.org United States French
12 commons.wikimedia.org United States Bangla
13 tagesspiegel.de #1,298 Germany German
14 developer.mozilla.org United States American English
15 royalcaribbean.com #1,516 United States English
16 incometax.gov.in #1,544 India English
17 belgium.be #1,573 Belgium English
18 umn.edu #1,597 United States English
19 ucdavis.edu #1,678 United States English
20 gba.gob.ar #1,723 Argentina Spanish

📈 Usage Statistics

Most of the sites that use RDFa:

Most of the sites using RDFa are from the United States, Germany, and France.

  • United States 20%
  • Germany 8.4%
  • France 6.1%
  • United Kingdom 5.7%
  • Spain 4%
  • Italy 3.8%
  • Belgium 3.7%
  • Netherlands 3.4%
  • Canada 3.1%
  • Other 41.8%

Most RDFa users speak English, German, or French.

  • English 48.9%
  • German 8.7%
  • French 6.8%
  • Spanish 4.7%
  • Dutch 4.1%
  • Russian 3.8%
  • Italian 3.1%
  • Japanese 1.8%
  • Polish 1.4%
  • Other 16.7%

RDFa semantic markup technology is especially popular on .com, .org, and .de top-level domains.

  • .com 30.3%
  • .org 10.9%
  • .de 5.6%
  • .fr 2.8%
  • .it 2.5%
  • .be 2.4%
  • .net 2.2%
  • .ru 2.2%
  • .ca 1.9%
  • Other 39.2%

The primary market segments for websites utilizing RDFa include business, education and reference, and marketing and merchandising.

  • Business 19.5%
  • Education/Reference 12.1%
  • Marketing/Merchandising 8.9%
  • Non-Profit/Advocacy/NGO 5.8%
  • Health 5.3%
  • Government/Military 4.9%
  • Travel 4%
  • Online Shopping 3.8%
  • Public Information 3.4%
  • Other 32.3%

🕵️ Similar Technologies

These are some of the best RDFa alternatives.

RankNameCompare
1 ARIACambridge, Massachusetts, United States

A technical specification that defines how to improve the accessibility of web pages.

 RDFa vs. ARIA
2 Open GraphMenlo Park, California, United States

Enables any web page to become a rich object in a social graph.

 RDFa vs. Open Graph
3 Twitter CardsBastrop, Texas, United States

With Twitter Cards, you can attach rich photos, videos and media experiences to tweets, helping to drive traffic to your website.

 RDFa vs. Twitter Cards
4 JSON-LDCambridge, Massachusetts, United States

A lightweight linked data format used to embed structured data into web pages.

 RDFa vs. JSON-LD
5 oEmbed

A format for allowing an embedded representation of a URL on third party sites.

 RDFa vs. oEmbed

🆚 Compare Alternatives

Compare RDFa with

💬 Frequently Asked Questions

What is the company behind RDFa?

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

Which country uses RDFa the most?

The majority of RDFa users are from the United States.

Who uses RDFa?

According to our data, RDFa is used on thousands of sites, including such established ones as instructure.com, mit.edu, and deviantart.com.

Is RDFa used on government websites?

Yes, for example, it is used by incometax.gov.in. Overall, we found RDFa on 176 government sites in the United States.

Do academic institutions use RDFa?

Yes, quite a few! The most prominent of these are mit.edu, umn.edu, and ucdavis.edu. In total, we know of 273 academic websites in the United States that use RDFa.

How does RDFa compare to its competitors?

RDFa is a moderately popular semantic markup technology, ranking ahead of 4 other semantic markup technologies we track.

What are the alternatives to RDFa?

Alternatives and possible competitors to RDFa may include ARIA, Open Graph, and Twitter Cards.

Data updated

👉 See Also

When interpreting and using the results, please read our methodology and disclaimer.