##### 3.2.2.5.8 DNS TXT Record with Persistent Value in the Reverse Namespace Confirming the Applicant’s control over the IP Address by converting the IP address to a Reverse Zone Domain Name and then verifying the presence of a Persistent DCV TXT Record identifying the Applicant as defined in [Section 3.2.2.4.22](#322422-dns-txt-record-with-persistent-value). The record MUST be placed at the "`_ip-validation-persist`" label prepended to the Reverse Zone Domain Name of the IP address being validated (i.e., "`_ip-validation-persist.[Reverse Zone Domain Name]`").