page_title: Registry
page_description: Definition of an Registry
page_keywords: containers, concepts, explanation, image, repository, container

# Registry

## Introduction

A Registry is a hosted service containing
[*repositories*](/terms/repository/#repository-def) of
[*images*](/terms/image/#image-def) which responds to the Registry API.

The default registry can be accessed using a browser at
[Docker.io](http://index.docker.io) or using the
`sudo docker search` command.

## Further Reading

For more information see [*Working with
Repositories*](/userguide/dockerrepos/#working-with-the-repository)
