⚡ 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 96.4% of websites from El Salvador.

Statistics based on 550 analyzed websites. About this data

⭐ 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 98.7%, followed by CSS with 97.9% and RSD with 59.1%.

HTML 98.7%
CSS 97.9%
RSD 59.1%
JSON 56%
Preconnect 48.1%
Open Graph 44%
DNS Prefetch 34.3%
SearchAction 24.2%
Preload 22.3%
Speculation Rules 18.7%
XFN 18.3%
Pingback 15.1%
YAML 2.5%
Trace Context 1.7%
IAB TCF 1.5%

🚀 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)
10. Speculation Rules ^(-1)
13. YAML ^(-1)
14. Trace Context ^(-7)
15. IAB TCF ^(-3)
16. Prefetch ^(-1)
18. GraphQL ^(-2)
20. CGI ^(-3)

✨ 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.	98.7%
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.	59.1%
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.	48.1%
6	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.	44%
7	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements.	34.3%
8	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	24.2%
9	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements.	22.3%
10	Speculation Rules Mountain View, California, United States API is used to improve navigation performance by prefetching or even prerendering future navigations.	18.7%
11	XFN An HTML microformat that provides a simple way to represent human relationships using links.	18.3%
12	Pingback A method for web authors to request notification when somebody links to one of their documents.	15.1%
13	YAML Seattle, Washington, United States A human-readable data serialization language designed for representing structured data and exchanging it between systems and programming languages.	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	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.	1.5%
16	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements.	1.5%
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.	1.3%
18	GraphQL Menlo Park, California, United States A data query and manipulation language for APIs typically used for remote client-server communications.	0.9%
19	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.	0.9%
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	Sass A stylesheet language that compiles to CSS and allows developers to use variables, nested rules, mixins, and functions.	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	OpenAPI San Francisco, California, United States A specification language for defining HTTP APIs, typically written in YAML or JSON.	0.6%
24	Text Cambridge, Massachusetts, United States The plain text document format.	0.4%
25	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%

👉 See Also

🌎 Standards 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 550 websites from El Salvador.
We currently track the presence of 54 standards across the web.
Of these, 31 were detected on websites from El Salvador.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.