netsystemsresearch.com on my internal network
Solution 1:
I made the same observation as you did on my local network.
With this scan: https://urlscan.io/domain/netsystemsresearch.com I found the following entry in their DNS Records:
Net Systems Research conducts periodic scans of the Internet to identify fraudulent activity for our customers. Our scans are CFAA compliant; however if you wish to be excluded from our scans please contact us at [email protected].