TLDFYI

Domain Lock

Domain lock (also called registrar lock or client transfer prohibited) is a security feature that prevents unauthorized [[domain-transfer|transfers]] of a domain name. When locked, transfer requests are automatically rejected by the [[registrar]].

Example

Always keep your domain locked unless you're actively transferring it — this prevents hijackers from initiating transfers with a stolen EPP code.

Referenced in Guides

Domain Basics

How to Register a Domain Name: Step-by-Step

 Domain Basics

10 Common Domain Name Mistakes to Avoid

 Domain Basics

Domain Registration Terms Every Owner Should Know

 Domain Basics

Domain Names and Trademarks: What You Must Know

 Registration & Management

How to Register a Domain: Complete Walkthrough

 Registration & Management

Choosing a Domain Registrar: What to Look For

 Registration & Management

Domain Transfer Guide: Move Domains Between Registrars

 Registration & Management

Understanding Domain Lock and Its Importance

 Registration & Management

How to Manage Multiple Domains

 Registration & Management

What Is an EPP Code and How to Get One

 Domain Security

Domain Security Checklist

 Domain Security

Domain Hijacking Prevention

 Domain Security

Registry Lock: The Ultimate Domain Protection

 Domain Security

Domain Security for E-commerce Sites

 Domain Security

Domain Incident Response Playbook

 Domain Business & Investing

Protecting Your Brand with Domain Registrations

 Domain Business & Investing

Domain Aftermarket: How the Secondary Market Works

 Domain Investing Guide

Domain Investing 101: A Beginner's Guide

 Domain Investing Guide

Drop Catching: How to Snag Expiring Domains

 Domain Investing Guide

Domain Leasing: Monthly Revenue Strategy