⚡ Standards in El Salvador

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

El Salvador is a Central American country with a population of over 6.3 million people.

According to our statistics, standards are used on 96.8% of websites from El Salvador.

⭐ Most Popular in 2026

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

The most popular is HTML with an impressive share of 98.6%, followed by CSS with 97.9% and RSD with 58.5%.

HTML 98.6%
CSS 97.9%
RSD 58.5%
JSON 56%
Preconnect 48.4%
Open Graph 43.6%
DNS Prefetch 33.7%
SearchAction 24%
Preload 22.3%
XFN 17.8%
Speculation Rules 17.6%
Pingback 14.9%
YAML 2.5%
Trace Context 1.7%
Prefetch 1.6%

🚀 Highlights

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

1. HTML ^(-1)
3. RSD ^(-2)
5. Preconnect ^(-3)
13. YAML ^(-1)
14. Trace Context ^(-7)
15. Prefetch ^(-2)
16. IAB TCF ^(-2)
19. GraphQL ^(-1)
20. CGI ^(-3)
21. OpenAPI ^(-11)

✨ Top Web Standards

Below is a more detailed list of the top 25 of the 31 standards used on sites from El Salvador, ranked by their market share.

Rank	Name	Market share
1	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.	98.6%
2	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.	97.9%
3	RSD An XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.	58.5%
4	JSON A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.	56%
5	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements.	48.4%
6	Open Graph Menlo Park, California, United States Enables any web page to become a rich object in a social graph.	43.6%
7	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	33.7%
8	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	24%
9	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	22.3%
10	XFN An HTML microformat that provides a simple way to represent human relationships using links.	17.8%
11	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	17.6%
12	Pingback A method for web authors to request notification when somebody links to one of their documents.	14.9%
13	YAML A data serialization language designed to be human friendly and work well with modern programming languages for common everyday tasks.	2.5%
14	Trace Context Cambridge, Massachusetts, United States Defines standard HTTP headers and a value format for propagating context information that enables distributed tracing.	1.7%
15	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	1.6%
16	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.	1.4%
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.	1.2%
18	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.	1%
19	GraphQL Menlo Park, California, United States A data query and manipulation language for APIs typically used for remote client-server communications.	1%
20	CGI Wilmington, Delaware, United States An interface specification that enables web servers to execute an external program to process HTTP requests.	0.8%
21	OpenAPI San Francisco, California, United States A specification language for defining HTTP APIs, typically written in YAML or JSON.	0.6%
22	OpenSearch Seattle, Washington, United States A specification that describes a website's search engine, enabling browsers, apps, and services to discover and integrate it.	0.6%
23	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.	0.4%
24	Text Cambridge, Massachusetts, United States The plain text document format.	0.4%
25	Less A backward-compatible CSS language extension inspired by Sass that supports variables, mixins, operations, and functions.	0.4%

👉 See Also

🌎 Standards in other countries

Data is based on the analysis of 533 websites from El Salvador.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.