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Site Info - Cloudflare.com

Overview of web technologies used by Cloudflare.com.

Website Background

Connect, protect, and build everywhere | Cloudflare
Make employees, applications and networks faster and more secure everywhere, while reducing complexity and cost.

Description on Homepage

Top 1k among all websites

Popularity rank

Astro is a website generator for static or Deno-based websites.

Astro 5.6.1
version 5.4.1 used until recently
2% of sites use a newer version
used on a subdomain

Discourse is an open source discussion platform written in Ruby on Rails.

Discourse 3.5.0
0% of sites use a newer version
used on a subdomain

Ruby is a general-purpose object-oriented language originally developed by Yukihiro "Matz" Matsumoto in Japan.

Ruby
used on a subdomain

JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

JavaScript

Bootstrap is an open source HTML, CSS, and JavaScript framework.

Bootstrap
used on a subdomain

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

jQuery
used until recently

Vue.js is a JavaScript library for building interactive web interfaces, based on the Model View ViewModel pattern.

Vue.js
used until recently

Cloudflare Server is a web server developed by Cloudflare.

Cloudflare Server

Cloudflare provides a content delivery network.

Cloudflare

Akamai is a content delivery network. This includes the former brands Instart Logic and StackPath.

Akamai
used until recently
hosting info partly based on data from ipinfo.io, see details

Cloudflare provides DNS servers and other web services.

Cloudflare

Area 1 offers email protection, owned by Cloudflare.

Area 1

GlobalSign is an IT security service provider, also operating as SSL certificate authority.

GlobalSign

Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.

Let’s Encrypt
used on a subdomain

Cloudflare Web Analytics is a privacy-respecting website traffic analytics service.

Cloudflare Web Analytics

The LinkedIn Insight Tag helps to optimize LinkedIn campaigns.

LinkedIn Insight Tag
used on inner pages

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google. This includes the Ads conversion tracking and the Floodlight services.

Google Analytics
used on a subdomain

Microsoft UET (Universal Event Tracking) records what visitors do on a website after they click on an ad.

Microsoft UET
used on a subdomain

The Google Advertising network consists of AdSense, DoubleClick and other services.

Google Ads
used on a subdomain

Adobe DTM (Dynamic Tag Management) is a tag management system by Adobe, part of Abode Analytics. This includes Satellite, previously owned by Search Discovery, and Adobe TagManager.

Adobe DTM

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

Google Tag Manager
used on a subdomain

Hacker News is a technology-centered social news and link sharing service.

Hacker News
used on a subdomain

External Cascading Style Sheets define style rules in a separate CSS file.

External CSS

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Embedded CSS

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Inline CSS

Persistent cookies with an expiration time of up to 1 day.

Cookies expiring in hours
used on a subdomain

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

HttpOnly Cookies
used on a subdomain

Secure cookies are used only via an encrypted connections, which may increase security.

Secure Cookies
used on a subdomain

Brotli is a lossless compression algorithm developed by Google.

Brotli Compression

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression
used on a subdomain

The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.

IPv6

HTTP/2 is the second major version of the HTTP network protocol.

HTTP/2

HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol.

HTTP/3

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

HTTP Strict Transport Security

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

Default subdomain www

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Default protocol https

Persistent cookies with an expiration time between 1 day and 1 month.

Cookies expiring in days
used until recently

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

Non-HttpOnly Cookies
used until recently

The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph.

Open Graph

Twitter/X Cards enable automatic attachment of photos, videos and media elements to tweets.

Twitter/X Cards
used on inner pages

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

JSON-LD
used on a subdomain

Generic RDFa (Resource Description Framework in attributes) is RDFa without further specialization.

Generic RDFa
used on a subdomain

HTML5 is the fifth revision of the HTML standard.

HTML5

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

UTF-8

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

PNG

Scalable Vector Graphics (SVG) is an XML-based vector image format.

SVG

WebP is an image format that provides lossless and lossy compression, developed by Google.

WebP

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

GIF
used on inner pages

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

JPEG
used on a subdomain

Commercial entities

.com

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