DNS:

https://www.dnswatch.info


http://dnsviz.net


https://viewdns.info


https://securitytrails.com/domain/asi-anodize.com/history/a


BEST PRACTICES DEFINITIVE GUIDE:

https://activedirectorypro.com/dns-best-practices/


GIBSON RESEARCH:

https://www.grc.com/dns/benchmark.htm


Speed comparison and analytics:

https://www.dnsperf.com/#!dns-resolvers,North%20America


Microsoft O365 reverse DNS lookup:

https://github.com/robcowart/elastiflow/issues/550



DNS Speed testing:

https://gtmetrix.com


https://www.grc.com/dns/benchmark.htm#gsc.tab=0


https://www.dnsperf.com/#!dns-resolvers,North%20America


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