Frameworks

Dart is a structured web programming language.

Flutter

Flutter Usage Statistics · Download List of All Websites using Flutter

Google's UI toolkit for creating natively compiled applications for mobile, web, and desktop.

Mobile

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Apple Mobile Web App Capable

Apple Mobile Web App Capable Usage Statistics · Download List of All Websites using Apple Mobile Web App Capable

Launches a web application for Safari on iOS in full-screen mode to look like a native application.

IPhone / Mobile Compatible

IPhone / Mobile Compatible Usage Statistics · Download List of All Websites using IPhone / Mobile Compatible

The website contains code that allows the page to support IPhone / Mobile Content.

Apple Mobile Web App Status Bar Style

Apple Mobile Web App Status Bar Style Usage Statistics · Download List of All Websites using Apple Mobile Web App Status Bar Style

Minimizes the status bar that is displayed at the top of the screen on iOS.

Apple Mobile Web Clips Icon

Apple Mobile Web Clips Icon Usage Statistics · Download List of All Websites using Apple Mobile Web Clips Icon

This page contains an icon for iPhone, iPad and iTouch devices.

Viewport Meta

Viewport Meta Usage Statistics · Download List of All Websites using Viewport Meta

This page uses the viewport meta tag which means the content may be optimized for mobile content.

Web Servers

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Apache

Apache Usage Statistics · Download List of All Websites using Apache

Apache has been the most popular web server on the Internet since April 1996.

Apache 2.4

Apache 2.4 Usage Statistics · Download List of All Websites using Apache 2.4

Apache version 2.4.*

Operating Systems and Servers

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OpenSSL

OpenSSL Usage Statistics · Download List of All Websites using OpenSSL

The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.

Document Encoding

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UTF-8

UTF-8 Usage Statistics

UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.

Document Standards

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HTML5 DocType

HTML5 DocType Usage Statistics

The DOCTYPE is a required preamble for HTML5 websites.

X-UA-Compatible

X-UA-Compatible Usage Statistics

Allows a website to define how a page is rendered in Internet Explorer 8, allowing a website to decide to use IE7 style rendering over IE8 rendering.

Meta Description

Meta Description Usage Statistics

The description attribute provides a concise explanation of the page content.

Web App Manifest

Web App Manifest Usage Statistics

Defines the attributes of a web app in a simple JSON file. It describes how the web app should appear on the users system and how it should launch.

Javascript

Javascript Usage Statistics

JavaScript is a scripting language most often used for client-side web development.

Cascading Style Sheets

Cascading Style Sheets Usage Statistics

Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. Its most common application is to style web pages written in HTML

X-XSS-Protection

X-XSS-Protection Usage Statistics

X-XSS-Protection is a HTTP header set by Internet Explorer 8+. This header lets domains toggle on and off the "XSS Filter" of IE8, which prevents some categories of XSS attacks.