Web Technologies Used by o2.co.uk

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS- and JavaScript-based design templates for typography, forms, buttons, navigation and other interface components.

Google Tag Manager is a free tool from Google that enables users to easily add, update, and manage website tags. Tags are snippets of code that allow websites to track activity, such as page visits and clicks, in order to better understand user behavior. Google Tag Manager makes it easy to quickly and easily add, update, and manage website tags without having to manually update code. It also helps to ensure that tags are firing correctly and accurately tracking user activity.

Yext is a hosted search-as-a-service platform.

SpeedCurve is a front-end performance monitoring service.

Azure is a cloud computing service for building, testing, deploying, and managing applications and services through Microsoft-managed data centers.

Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.

Azure Front Door is a scalable and secure entry point for fast delivery of your global web applications.

Modernizr is a JavaScript library which is designed to detect HTML5 and CSS3 features in various browsers, which lets JavaScript avoid using unimplemented features or use a workaround such as a shim to emulate them. Modernizr aims to provide this feature detection in a complete and standardized manner.

Slick is a jQuery plugin for creating responsive and mobile-friendly carousels (sliders).

YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.

jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. It is free, open-source software using the permissive MIT License.

jQuery UI is a collection of GUI widgets, animated visual effects, and themes implemented with jQuery, Cascading Style Sheets, and HTML.

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Liferay is an open-source company that provides free documentation and paid professional service to users of its software.

Cloudflare is a company that provides content delivery network services, DDoS mitigation, Internet security and distributed domain name server services. Cloudflare's services sit between the visitor and the Cloudflare user's hosting provider, acting as a reverse proxy for websites.

Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots.

Varnish is an open-source web application accelerator also known as a HTTP cache or reverse proxy. It is designed to speed up websites and reduce the load on web servers by caching frequently accessed web pages and serving them directly to users without having to generate them dynamically each time they are requested. Varnish is typically used in front of web servers such as Apache or Nginx, and it can be configured to cache content based on various criteria such as URL, HTTP headers, cookies, and more. It also supports dynamic content and can be used to implement load balancing, content filtering, and other advanced features. Varnish is known for its high performance and scalability, and it is widely used by websites with high traffic volumes such as news sites, social media platforms, and e-commerce sites. It is also used by many content delivery networks (CDNs) to improve the speed and efficiency of content delivery.