Gravatar is a service for providing globally unique avatars and was created by Tom Preston-Werner. It is owned by Automattic, having integrated it into their WordPress.com blogging platform.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
Spring Boot is an open source Java-based framework used to create micro-services. It is developed by Pivotal Team and is used to build stand-alone and production-grade Spring applications.
Jenkins is an open source automation server written in Java. Jenkins helps to automate the non-human part of the software development process, with continuous integration and facilitating technical aspects of continuous delivery. It is a server-based system that runs in servlet containers such as Apache Tomcat.
Rackspace Inc. is an American managed cloud computing company based in Windcrest, Texas, a suburb of San Antonio. The company also has offices in Australia, the United Kingdom, Switzerland, the Netherlands, Germany, Singapore, Mexico and Hong Kong.