Having Secondary DNS, whether with Dyn or another provider is a best practice for DNS management.
Click Here to add Dyn as a Secondary DNS provider.
Click Here to add your non-Dyn Secondary DNS providers in your Dyn account.
Dyn /help/
Glossary Frequently Asked Questions
This is the place to learn how to get the most out of your Dyn services. Here you will find official support documentation, a changelog for each product, a list of frequently asked questions, ancillary articles, and a glossary of technical terms and jargon.