[freiheit]

Sonic.net is using bind9, where this "qname-optimization" is a default setting for protecting user privacy.

https://www.isc.org/blogs/qname-minimization-and-privacy/

https://bind9.readthedocs.io/en/latest/reference.html (look for qname)

(I work at Sonic)

[NelsonMinar]

Thanks for the info and the awesome ISP!