Amazon Route 53 provides highly available and scalable DNS management; this post outlines best practices for managing your Route 53 namespace and hosted zones to ensure reliable DNS resolution, including controlling access, managing delegations, optimizing TTLs, and avoiding ambiguous configurations.

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<p>This article provides best practices for managing DNS using Amazon Route 53, AWS's service for domain name registration and DNS resolution.</p>
<p>Specifically, the article covers:</p>
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<li>Controlling access to your Route 53 namespace to prevent unwanted changes that could lead to domain loss or outages</li>
<li>Managing hosted zones, including access controls, delegation depth, and handling non-existent records</li>
<li>Properly delegating subdomains to separate hosted zones to avoid ambiguous responses</li>
<li>Choosing appropriate time-to-live (TTL) values to balance responsiveness and query load</li>
<li>Conclusion summarizing the benefits of using Route 53 and following these best practices</li>
</ul>
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DNS best practices for Amazon Route 53

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