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*](
../repository/#repository-def) of [*images*](../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*](
../use/workingwithrepository/#working-with-the-repository)
