⚡ 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 96.7% of websites from El Salvador.

Statistics based on 574 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 98.6%, followed by CSS with 97.8% and RSD with 58.9%.

HTML 98.6%
CSS 97.8%
RSD 58.9%
JSON 56.4%
Preconnect 47.4%
Open Graph 45.4%
DNS Prefetch 35%
SearchAction 24.5%
Preload 22.5%
Speculation Rules 19.8%
XFN 19.1%
Pingback 15.5%
YAML 2.3%
Trace Context 1.6%
IAB TCF 1.4%

🚀 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)
19. GraphQL ^(-1)
21. CGI ^(-3)
22. OpenAPI ^(-11)

✨ Top Web Standards

Below is a more detailed list of the top 25 of the 32 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.	97.8%
3	RSD Wesley Hills, New York, United States An XML format that helps client software find the services needed to read, edit, or "work with" weblogging software.	58.9%
4	JSON A lightweight, language-independent data exchange format derived from JavaScript and used to structure and transmit data between systems.	56.4%
5	Preconnect Cambridge, Massachusetts, United States The rel="preconnect" attribute on HTML elements instructs browsers to establish early connections to external origins before resources are requested.	47.4%
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.	45.4%
7	DNS Prefetch Cambridge, Massachusetts, United States The rel="dns-prefetch" attribute on HTML elements instructs web browsers to resolve domain names for external resources before those resources are requested.	35%
8	SearchAction Cambridge, Massachusetts, United States A structured data type from Schema.org that describes a website's search capability.	24.5%
9	Preload Cambridge, Massachusetts, United States The rel="preload" attribute on HTML elements instructs web browsers to fetch important resources early before they are requested during page rendering.	22.5%
10	Speculation Rules Mountain View, California, United States A browser API that improves navigation performance by prefetching or prerendering pages that users are likely to visit next.	19.8%
11	XFN United States An HTML microformat that represents human relationships by adding metadata to hyperlinks between websites and profiles.	19.1%
12	Pingback A method for web authors to request notification when somebody links to one of their documents.	15.5%
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.	2.3%
14	Trace Context Cambridge, Massachusetts, United States Defines standard HTTP headers and a value format for propagating context information that enables distributed tracing.	1.6%
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.	1.4%
16	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.	1.4%
17	Prefetch Cambridge, Massachusetts, United States The rel="prefetch" attribute on HTML elements tells the browser to download resources that are likely to be needed for future navigation when the current page is idle.	1.4%
18	XHTML Cambridge, Massachusetts, United States An XML-based markup language that extends HTML 4.	1.1%
19	GraphQL Menlo Park, California, United States A data query and manipulation language for APIs typically used for remote client-server communications.	0.9%
20	OpenSearch Seattle, Washington, United States A specification that describes a website's search engine, enabling browsers, apps, and services to discover and integrate it.	0.7%
21	CGI Wilmington, Delaware, United States An interface specification that enables web servers to execute an external program to process HTTP requests.	0.7%
22	OpenAPI San Francisco, California, United States A specification language for defining HTTP APIs, typically written in YAML or JSON.	0.5%
23	Sass A stylesheet language that compiles to CSS and allows developers to use variables, nested rules, mixins, and functions.	0.5%
24	WebAssembly Cambridge, Massachusetts, United States A portable binary instruction format that runs in modern web browsers with near-native performance, enabling frontend coding in languages that were not traditionally used for web interfaces, such as C/C++, C#, and Rust.	0.5%
25	Text Cambridge, Massachusetts, United States The plain text document format.	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 574 websites from El Salvador.
We currently track the presence of 54 standards across the web.
Of these, 32 were detected on websites from El Salvador.
Statistics were last calculated on June 19, 2026.
For more details, see our methodology and disclaimer.