Well in your example you’re only pointing out facebook, but I guess you would have the same need for every hostname you might visit
dnsmasq provides the option –all-servers
–all-servers
By default, when dnsmasq has more than one upstream server available, it will send queries to just one server. Setting
this flag forces dnsmasq to send all queries to all available servers.
The reply from the server which answers first will be returned to the original requestor.
Set a several DNS servers
server=OpenDNS.IP.Addr.ess
server=GoogleDNS.IP.Addr.ess
server=...
And the fastest response will be considered