⚡ Standards in Iran

Web standards are a set of guidelines and specifications that define and describe various aspects of the World Wide Web.

Iran is a Western Asian country with a population of over 89 million people.

According to our statistics, standards are used on 93.1% of websites from Iran.

⭐ Most Popular in 2026

The following chart shows the top standards on websites in Iran in 2026, based on market share.

The most popular is CSS with an impressive share of 97.6%, followed by HTML with 96.2% and Open Graph with 61.1%.

CSS 97.6%
HTML 96.2%
Open Graph 61.1%
RSD 48.1%
SearchAction 45.7%
JSON 44.3%
XFN 33.2%
DNS Prefetch 27.8%
Preload 23%
Pingback 22.6%
Speculation Rules 17.7%
Preconnect 15.9%
XHTML 3.2%
Prefetch 2%
CGI 1.8%

🚀 Highlights

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

4. RSD ^(-1)
5. SearchAction ^(-2)
7. XFN ^(-3)
10. Pingback ^(-2)
14. Prefetch ^(-3)
15. CGI ^(-8)
16. OpenSearch ^(-3)
18. Sass ^(-4)
19. Sitemap ^(-7)
20. OpenID ^(-4)

✨ Top Web Standards

Below is a more detailed list of the top 25 of the 42 standards used on sites from Iran, ranked by their market share.

Rank	Name	Market share
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.	97.6%
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.	96.2%
3	Open Graph Menlo Park, California, United States Enables any web page to become a rich object in a social graph.	61.1%
4	RSD An XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.	48.1%
5	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	45.7%
6	JSON A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.	44.3%
7	XFN An HTML microformat that provides a simple way to represent human relationships using links.	33.2%
8	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	27.8%
9	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	23%
10	Pingback A method for web authors to request notification when somebody links to one of their documents.	22.6%
11	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	17.7%
12	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	15.9%
13	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.	3.2%
14	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	2%
15	CGI Wilmington, Delaware, United States An interface specification that enables web servers to execute an external program to process HTTP requests.	1.8%
16	OpenSearch Seattle, Washington, United States A specification that describes a website's search engine, enabling browsers, apps, and services to discover and integrate it.	1.7%
17	OAuth Fremont, California, United States An open standard authorization protocol that allows applications to obtain limited access to user accounts without sharing passwords across web, mobile, and desktop environments.	0.8%
18	Sass A stylesheet language that compiles to CSS and allows developers to use variables, nested rules, mixins, and functions.	0.6%
19	Sitemap A file in XML format that allows webmasters to inform search engines about URLs on a website that are available for web crawling.	0.5%
20	OpenID San Ramon, California, United States A decentralized authentication protocol based on OAuth 2.0 that enables applications to verify a user's identity through an external identity provider instead of managing credentials directly.	0.4%
21	Text Cambridge, Massachusetts, United States The plain text document format.	0.4%
22	IAB TCF Brussels, Belgium An open-source industry standard developed by IAB Europe that helps companies comply with GDPR and ePrivacy requirements when processing personal data in digital advertising ecosystems.	0.2%
23	Less A backward-compatible CSS language extension inspired by Sass that supports variables, mixins, operations, and functions.	0.2%
24	RelMeAuth A proposed open standard for using rel-me links to profiles on OAuth supporting services to authenticate via either those profiles or your own site.	0.2%
25	Humans.txt A text file that can be created by developers to list the people who have contributed to a website.	0.2%

Data is based on the analysis of 21,370 websites from Iran.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.