It can be anything! An apex, subdomain, or even a URL.

Results forprimary.yourfilter.nl

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Name	TTL	Value
primary.yourfilter.nl	60	185.103.241.20Your Hosting B.V / Your Hosting B.V.
primary.yourfilter.nl	60	185.103.241.21Your Hosting B.V / Your Hosting B.V.
primary.yourfilter.nl	60	185.103.241.25Your Hosting B.V / Your Hosting B.V.
primary.yourfilter.nl	60	185.223.33.23YH MX / Your Hosting B.V.
primary.yourfilter.nl	60	185.223.33.24YH MX / Your Hosting B.V.
primary.yourfilter.nl	60	185.223.33.27YH MX / Your Hosting B.V.
primary.yourfilter.nl	60	185.223.33.28YH MX / Your Hosting B.V.
primary.yourfilter.nl	60	185.223.33.29YH MX / Your Hosting B.V.