| # | Technology | Reach |
|---|
| 1 |
 Charset Declaration directive, specified via HTML meta tag or HTTP headers, defines the character encoding of a document. |
88% |
| 2 |
 CSS A style language used to specify the presentation of HTML or XML documents, describing how elements should be displayed. |
86% |
| 3 |
HTML A markup language used to create web pages, the de facto standard for documents displayed in a web browser. |
84.2% |
| 4 |
ARIA A technical specification that defines how to improve the accessibility of web pages. |
60.5% |
| 5 |
JSON-LD A lightweight linked data format used to embed structured data into web pages. |
36% |
| 6 |
⏳ Lazy loading A technique to load non-critical images and iframes marked with the loading="lazy" attribute only when needed. |
30.8% |
| 7 |
DNS Prefetch The rel="dns-prefetch" attribute on HTML elements. |
29.6% |
| 8 |
 SearchAction A structured data type from Schema.org that describes a website's search capability. |
26.7% |
| 9 |
Web Storage A browser API and client-side key-value database that allows websites to store persistent data on users' devices. |
26.1% |
| 10 |
Preconnect The rel="preconnect" attribute on HTML elements. |
22.2% |
| 11 |
Preload The rel="preload" attribute on HTML elements. |
19.2% |
| 12 |
Microdata An HTML specification that is used to nest metadata within a document, in parallel with the existing content. |
14.7% |
| 13 |
CSP The Content-Security-Policy HTTP response header and meta tag are used to control what resources a given page can load. |
13.2% |
| 14 |
Table Element The HTML element represents tabular data and has been widely used in the past for designing layouts. |
11.3% |
| 15 |
Progressive Web App A type of web app that can be installed on a device as a standalone application. |
7.9% |
| 16 |
Video Element The HTML element, introduced in HTML5. |
6.2% |
| 17 |
XMLHttpRequest A JavaScript API to create HTTP requests. |
5.9% |
| 18 |
XHTML An XML-based markup language that extends HTML 4. |
4.5% |
| 19 |
Fetch A modern XMLHttpRequest alternative for fetching network resources. |
4.4% |
| 20 |
Font Element The HTML element, deprecated since HTML 4. |
4% |
| 21 |
CORS An HTTP header-based mechanism used to safely bypass same-origin policy and allow requests to other domains. |
3.3% |
| 22 |
Navigation Timing A part of the Performance API that provides metrics related to navigation from one page to another. |
3.1% |
| 23 |
Beacon API Used to send asynchronous and non-blocking requests to a web server. |
3.1% |
| 24 |
Template Element The HTML element, introduced in HTML5. |
2.9% |
| 25 |
Prefetch The rel="prefetch" attribute on HTML elements. |
1.2% |
| 26 |
Trace Context Defines standard HTTP headers and a value format for propagating context information that enables distributed tracing. |
0.9% |
| 27 |
PerformanceObserver A part of the Performance API that is used to monitor performance measurement events. |
0.8% |
| 28 |
 RDFa An extension to HTML5 that adds attributes to markup things like people, places, events, recipes, and reviews. |
0.7% |
| 29 |
Object Element The HTML element. |
0.6% |
| 30 |
Canvas Element The HTML element, introduced in HTML5. |
0.5% |
| 31 |
Dialog Element The HTML element. |
0.4% |
| 32 |
Audio Element The HTML element, introduced in HTML5. |
0.4% |
| 33 |
Text The plain text document format. |
0.4% |
| 34 |
XML A markup language and file format for storing, transmitting, and reconstructing arbitrary data. |
0.3% |
| 35 |
Embed Element The HTML element. |
0.3% |
| 36 |
Frame Element The HTML element, deprecated in HTML 5. |
0.3% |
| 37 |
Geolocation API Allows web applications to retrieve the user's location, including latitude and longitude. |
0.2% |
| 38 |
RDF A W3C standard model to describe and exchange graph data on the web. |
0.1% |
| 39 |
IndexedDB A transactional NoSQL database system for the persistent storage of structured data inside a user's browser. Free |
0.05% |
| 40 |
Webmention A simple protocol to notify any URL when a website links to it, and for web pages to request notifications when somebody links to them. |
0.04% |
| 41 |
Notifications API Used to configure and display desktop notifications to the user. |
0.03% |
| 42 |
Screen Orientation API Exposes the current type and angle of the device's screen orientation, and dispatches events when it changes. |
0.03% |
| 43 |
WCAG The Web Content Accessibility Guidelines are a set of recommendations for making web content more accessible, developed by W3C. |
0.02% |
| 44 |
Bgsound Element The obsolete HTML element. |
0.02% |
| 45 |
ESI A simple markup language used to define web page components for dynamic assembly and delivery of web applications at the edge of the Internet. |
0.01% |
| 46 |
Applet Element The HTML element, deprecated in HTML 4.01. |
0.008% |
| 47 |
IndieAuth A decentralized identity protocol built on top of OAuth 2.0. |
0.005% |
| 48 |
Micropub An HTTP-based client-server protocol used to create, update, and delete posts on servers using third-party clients. |
0.003% |
| 49 |
Math Element The HTML element. |
0.002% |
| 50 |
XSLT A language designed for transforming XML documents into other documents. |
0.001% |
| 51 |
Amaya A discontinued open source WYSIWYG web editor. Legacy |
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