# Overview

## Validator Guide

In this section you will find information about:

* [Attestation Service](https://josh-8.gitbook.io/celo-docs/validator-guide/attestation-service), a core piece of the Celo identity protocol
* [Key Management](https://josh-8.gitbook.io/celo-docs/validator-guide/summary) best practices for Validators
* [Securing Celo Nodes and Services](https://josh-8.gitbook.io/celo-docs/validator-guide/securing-nodes-and-services)
* [Monitoring](https://josh-8.gitbook.io/celo-docs/validator-guide/monitoring) Celo nodes
* [Upgrading a Node](https://josh-8.gitbook.io/celo-docs/validator-guide/node-upgrades)
* [Running Proxies](https://josh-8.gitbook.io/celo-docs/validator-guide/broken-reference)
* [Validator Explorer](https://josh-8.gitbook.io/celo-docs/validator-guide/validator-explorer)
* Information about the [Celo Foundation Voting Policy](https://josh-8.gitbook.io/celo-docs/validator-guide/celo-foundation-voting-policy)