⚡ Semantic Markup in Luxembourg

Semantic markup is code added to web pages to describe the meaning of content elements and their relationships, giving search engines and other systems clearer context beyond visual layout.

Luxembourg is a Western European country with a population of over 660 thousand people.

According to our research, semantic markup technologies are used on 69.7% of websites from Luxembourg.

Statistics based on 2K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top semantic markup technologies in Luxembourg in 2026, based on market share.

The most popular is ARIA with an impressive share of 89.5%, followed by Open Graph with 64.9% and Twitter Cards with 49.5%.

ARIA 89.5%
Open Graph 64.9%
Twitter Cards 49.5%
JSON-LD 42.9%
oEmbed 38.4%
SearchAction 30.1%
Microdata 18.3%
Microformats 4.3%
RDFa 1.8%
Dublin Core 0.9%
Microformats2 0.2%

🚀 Highlights

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

9. RDFa ^(-1)

✨ Best Semantic Markup Technologies

Below is a more detailed list of 11 semantic markup technologies used on sites from Luxembourg, ranked by their market share.

Rank	Name	Market share
1	ARIA Cambridge, Massachusetts, United States A W3C technical specification that defines how to improve the accessibility of web content and applications, particularly those with dynamic interfaces and custom controls.	89.5%
2	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.	64.9%
3	Twitter Cards Bastrop, Texas, United States A metadata format used by X, originally Twitter, that enables links in posts to display rich previews with images, videos, and interactive media to increase engagement and traffic.	49.5%
4	JSON-LD Cambridge, Massachusetts, United States A lightweight linked data format used to embed structured data into web pages.	42.9%
5	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.	38.4%
6	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	30.1%
7	Microdata Cambridge, Massachusetts, United States An HTML specification that is used to nest metadata within a document, in parallel with the existing content.	18.3%
8	Microformats A set of defined HTML classes and attributes created to serve as descriptive metadata about an element, representing commonly published things like people, events, blog posts, reviews, and so on.	4.3%
9	RDFa Cambridge, Massachusetts, United States An extension to HTML5 that adds attributes to markup things like people, places, events, recipes, and reviews.	1.8%
10	Dublin Core A metadata element set used for documents and other objects.	0.9%
11	Microformats2 A set of defined HTML classes and attributes created to serve as descriptive metadata about an element, representing commonly published things like people, events, blog posts, reviews, and so on.	0.2%

👉 See Also

🌎 Semantic Markup 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 2,821 websites from Luxembourg.
We currently track the presence of 14 semantic markup technologies across the web.
Of these, 11 were detected on websites from Luxembourg.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.