123-reg is headquartered in England and is a domain registrar and web hosting company. The company claims to be the UK's largest accredited domain registrar that provides Internet services to small- and medium-sized business. Up until 2017, 123-reg was part of Host Europe Group (HEG), which at the time, was Europe's largest privately owned hosting company.
Delphi is a software product that uses the Delphi dialect of the Object Pascal programming language and provides an integrated development environment (IDE) for rapid application development of desktop, mobile, web, and console software, currently developed and maintained by Embarcadero Technologies.
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.