Site Info - Open.ac.uk

Kentico is a content management system based on ASP.NET.

Drupal is an open source content management system written in PHP, originally developed by Dries Buytaert.

Status.io provides hosted system status pages.

Gatsby is an open source static website generator based on React and GraphQL.

Microsoft's Active Server Pages technology on the .NET framework.

PHP is a scripting language for creating websites.

Static websites don't use any server-side programming language for generating web pages, but deliver fixed content which is created manually or with an offline tool.

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

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

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the visitors browser.

ASP.NET Ajax is a JavaScript library based on ASP.NET, developed by Microsoft.

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

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

The Internet Information Services (IIS) are a set of Internet-based services for Windows, developed by Microsoft.

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

The Apache HTTP Server is an open source web server by the Apache Software Foundation.

Windows is an operating system produced by Microsoft.

Unix is a range of operating systems originally developed at Bell Labs. This includes Unix and Unix-like systems, such as Linux.

Ubuntu is a Linux distribution.

Amazon is a US-based e-commerce and cloud computing provider.

Acquia provides Drupal hosting.

Status.io provides hosted system status pages.

Amazon is a US-based e-commerce and cloud computing provider.

Amazon CloudFront is a content delivery web service by Amazon.

DNS Made Easy is a DNS service provider owned by DigiCert.

easyDNS is a Canadian internet services provider.

Amazon is a US-based e-commerce and cloud computing provider.

Microsoft is a multinational technology company headquartered in USA, also offering email services.

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

Google Hosted Libraries (formerly called Google Libraries API) is a content distribution network for the most popular, open-source JavaScript libraries, provided by Google.

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

The LinkedIn Insight Tag helps to optimize LinkedIn campaigns.

CrazyEgg is a website visitor and click tracking service.

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.

New Relic is a web application performance management tool.

Clicky is a real-time web analytics tool by Roxr Software.

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

Xandr is an advertising network owned by Microsoft, formerly by AT&T. This includes the former AppNexus brand.

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

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.

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

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

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

Session cookies are temporary cookies, which are deleted when the user closes the browser.

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

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

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

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

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

Non-secure cookies may be used via an unencrypted connections, which may be a security threat.

Gzip (GNU zip) is a file compression algorithm.

A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.

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.

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

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

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

Brotli is a lossless compression algorithm developed by Google.

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.

Twitter Cards enable automatic attachment of photos, videos and media elements to Tweets.

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

Microdata is a specification to integrate metadata within existing content on web pages.

HTML5 is the fifth revision of the HTML standard.

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

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

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

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.

United Kingdom