dns test - SERP Analysis

https://www.dnsleaktest.com/

https://dnsspeedtest.online/

https://docs.thousandeyes.com/product-documentation/tests/dns-tests

https://dnscheck.tools/

https://www.dnsperf.com/

https://dnschecker.org/

https://play.google.com/store/apps/details%3Fid%3Dcom.catinthebox.dnsspeedtest%26hl%3Den_US

https://cmdns.dev.dns-oarc.net/

https://browserleaks.com/dns

https://www.reddit.com/r/dns/comments/182uf3p/introducing_dns_speed_test_web_tool_find_the/