```dns.api.gandi.net
dns.api.globus.org
dns.api.integration.globuscs.info
dns.api.preview.globus.org
dns.api.rackspacecloud.com
dns.api.sandbox.globuscs.info
dns.api.staging.globuscs.info
dns.api.test.globuscs.info
dns.beta.gandi.net
dns.cloudfiction.eu
dns.cloudflare.com
dns.eu-frankfurt-1.oraclecloud.com
dns.google.com
dns.islandnet.com
dns.onp.cloud
dns.quad9.net
dns.tuna.tsinghua.edu.cn
dns.uk-london-1.oraclecloud.com
dns.us-ashburn-1.oraclecloud.com
dns.us-phoenix-1.oraclecloud.com
```