<p>The name of the domain that you want to get availability for. The top-level domain (TLD), such as .com, must be a TLD that Route 53 supports. For a list of supported TLDs, see <a href="https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/registrar-tld-list.html">Domains that You Can Register with Amazon Route 53</a> in the <i>Amazon Route 53 Developer Guide</i>.</p> <p>The domain name can contain only the following characters:</p> <ul> <li> <p>Letters a through z. Domain names are not case sensitive.</p> </li> <li> <p>Numbers 0 through 9.</p> </li> <li> <p>Hyphen (-). You can't specify a hyphen at the beginning or end of a label. </p> </li> <li> <p>Period (.) to separate the labels in the name, such as the <code>.</code> in <code>example.com</code>.</p> </li> </ul> <p>Internationalized domain names are not supported for some top-level domains. To determine whether the TLD that you want to use supports internationalized domain names, see <a href="https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/registrar-tld-list.html">Domains that You Can Register with Amazon Route 53</a>. For more information, see <a href="https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/DomainNameFormat.html#domain-name-format-idns">Formatting Internationalized Domain Names</a>. </p>

<p>Whether the domain name is available for registering.</p> <note> <p>You can register only domains designated as <code>AVAILABLE</code>.</p> </note> <p>Valid values:</p> <dl> <dt>AVAILABLE</dt> <dd> <p>The domain name is available.</p> </dd> <dt>AVAILABLE_RESERVED</dt> <dd> <p>The domain name is reserved under specific conditions.</p> </dd> <dt>AVAILABLE_PREORDER</dt> <dd> <p>The domain name is available and can be preordered.</p> </dd> <dt>DONT_KNOW</dt> <dd> <p>The TLD registry didn't reply with a definitive answer about whether the domain name is available. Route 53 can return this response for a variety of reasons, for example, the registry is performing maintenance. Try again later.</p> </dd> <dt>PENDING</dt> <dd> <p>The TLD registry didn't return a response in the expected amount of time. When the response is delayed, it usually takes just a few extra seconds. You can resubmit the request immediately.</p> </dd> <dt>RESERVED</dt> <dd> <p>The domain name has been reserved for another person or organization.</p> </dd> <dt>UNAVAILABLE</dt> <dd> <p>The domain name is not available.</p> </dd> <dt>UNAVAILABLE_PREMIUM</dt> <dd> <p>The domain name is not available.</p> </dd> <dt>UNAVAILABLE_RESTRICTED</dt> <dd> <p>The domain name is forbidden.</p> </dd> </dl>