QoS and DNS Based Priority

Everyone,

I'd like to setup QoS to better prioritize my work laptop and other requirements. After reviewing the documentation, I don't quite understand how to prioritize based on DNS records (and all IPs behind it).

How can I prioritize based on *.zoom.us. The documentation specifically says I should use an IP or subnet range.

root@mainrouter:~# cat /etc/config/qos

config classify
        option target 'Priority'
        option comment 'workVPN'
        option dsthost 'XX.YY.0.0/16'

config classify
        option target 'Priority'
        option srchost '192.168.10.123'
        option comment 'worklaptop'

config classify
        option target 'Priority'
        option dsthost '*.zoom.us'
        option comment 'zoom'

config classify
        option target 'Normal'
        option srchost '192.168.10.0/24'
        option comment 'normal'

config classify
        option target 'Bulk'
        option srchost '192.168.20.0/24'
        option comment 'guest'

config classify
        option target 'Bulk'
        option srchost '192.168.30.0/24'
        option comment 'iot'

config interface 'wan'
        option classgroup 'Default'
        option download '100000'
        option upload '9000'
        option enabled '1'

config default
        option target 'Express'
        option proto 'udp'
        option pktsize '-500'

config reclassify
        option target 'Priority'
        option proto 'icmp'

config default
        option target 'Bulk'
        option portrange '1024-65535'

config classgroup 'Default'
        option classes 'Priority Express Normal Bulk'
        option default 'Normal'

config class 'Priority'
        option packetsize '400'
        option avgrate '10'
        option priority '20'
        option limitrate '85'

config class 'Priority_down'
        option packetsize '1000'
        option avgrate '10'

config class 'Express'
        option packetsize '1000'
        option avgrate '50'
        option priority '10'
        option limitrate '75'

config class 'Normal'
        option packetsize '1500'
        option packetdelay '100'
        option avgrate '10'
        option priority '5'
        option limitrate '70'

config class 'Normal_down'
        option avgrate '20'

config class 'Bulk'
        option avgrate '1'
        option packetdelay '200'
        option limitrate '40'