Analytics and Tracking

FastlyFastly

Fastly Usage Statistics · Download List of All Websites using Fastly

Real-time Analytics and CDN platform. Analyze your web and server traffic patterns in real-time.

Application Performance

Viewport MetaViewport 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.

Content Delivery Network

CDN JSCDN JS

CDN JS Usage Statistics · Download List of All Websites using CDN JS

CloudFlare's CDN with popular javascript frameworks available.

Content Management System

JekyllJekyll

Jekyll Usage Statistics · Download List of All Websites using Jekyll

Transform your plain text into static websites and blogs. Note not all sites keep the Jekyll tags so this list will not be conclusive for all Jekyll sites.

Open Source

Operating Systems and Servers
Web Servers

VarnishVarnish

Varnish Usage Statistics · Download List of All Websites using Varnish

Varnish is a web accelerator / reverse proxy caching server.

Varnish Server

Document Encoding

UTF-8UTF-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

HTML5 DocTypeHTML5 DocType

HTML5 DocType Usage Statistics

The DOCTYPE is a required preamble for HTML5 websites.

X-UA-CompatibleX-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.

Open Graph ProtocolOpen Graph Protocol

Open Graph Protocol Usage Statistics

The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook

Canonical Content TagCanonical Content Tag

Canonical Content Tag Usage Statistics

Public specification of a preferred URL for a page allows search engines to understand the original location for content.

Twitter CardsTwitter Cards

Twitter Cards Usage Statistics

Twitter cards make it possible for you to attach media experiences to Tweets that link to your content.

JSON-LDJSON-LD

JSON-LD Usage Statistics

JSON-LD, or JavaScript Object Notation for Linked Data, is a method of transporting Linked Data using JSON.

Cascading Style SheetsCascading 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

Sub Resource IntegritySub Resource Integrity

Sub Resource Integrity Usage Statistics

SRI is a W3C specification that allows web developers to ensure that resources hosted on third-party servers have not been tampered with.

JavascriptJavascript

Javascript Usage Statistics

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

CORSCORS

CORS Usage Statistics

The Cross-Origin Resource Sharing (CORS) mechanism gives web servers cross-domain access controls, which enable secure cross-domain data transfers. Access Control Allow Origin.