pi@noads:~ $ echo 'srv-host=_http._tcp.home.web,192.168.1.99,20080,10,1' | sudo tee /etc/dnsmasq.d/99-my-settings.conf
srv-host=_http._tcp.home.web,192.168.1.99,20080,10,1
pi@noads:~ $ sudo service pihole-FTL reload
pi@noads:~ $
pi@noads:~ $ host -t srv _http._tcp.home.web
_http._tcp.home.web has SRV record 10 1 20080 192.168.1.99.
But your software needs to specifically do SRV lookups.
You cant use it like in for example a browser that only does A or AAAA record lookups.
.......... I think 