Reply To: To check thousand of addresses
An easy way would be to run through them using “dig” , “nslookup” or a similar tool. If you get a NXDOMAIN, it shows that we blocked it.
dig badexample.com @126.96.36.199
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36598
badexample.com. 3600 IN SOA cleanbrowsing.rpz.noc.org. accesspolicy.rpz.noc.org. 1 7200 900 1209600 86400
That tells you that badexample.com is blocked (NXDOMAIN on the query status).