⚡ Standards
Web standards are a set of guidelines and specifications that define and describe various aspects of the World Wide Web.
Developed by the World Wide Web Consortium (W3C), the Web Hypertext Application Technology Working Group (WHATWG), the International Organization for Standardization (ISO), and others, web standards ensure the consistent, interoperable, and accessible design and functionality of websites and web applications across different browsers, devices, and platforms.
According to our statistics, standards are used on 99.7% of all websites.
3.5% of these sites use only one standard, 24.4% use two, and 72.1% use three or more at the same time.
⭐ Most Popular in 2025
The following chart shows the leading standards on the web in 2025, based on market share.
The most popular is 
CSS with an impressive share of 95.8%, followed by HTML with 93.1% and Open Graph with 52%.
- CSS 95.8%
- HTML 93.1%
Open Graph 52%
RSD 34.6%
JSON 33.8%
DNS Prefetch 31.9%- Preconnect 22.2%
XFN 21.8%- Preload 18%
- Pingback 16.2%
- XHTML 5.9%
Speculation Rules 4.4%- Acceptable Ads 3.1%
YAML 1.8%
- AMP 1.4%
You can also drill down by country:
🚀 Highlights
Here is a list of standards that are particularly popular in certain countries.
Differences between global and country rankings are shown in parentheses.
- HTML is #1 in Germany (-1)
- JSON is #3 in Kenya (-2)
- Preconnect is #3 in Thailand (-4)
- XHTML is #3 in Hong Kong (-8)
- Acceptable Ads is #3 in the British Virgin Islands (-10)
- DNS Prefetch is #4 in Japan (-2)
- AMP is #5 in Cambodia (-10)
- Preload is #6 in Austria (-3)
✨ Top Web Standards
Below is a more detailed list of the top 25 of the 52 standards we track, ranked by their market share.
SassData updated
👉 See Also
- 🔗 Links
Web standards