DNSPerf

Speedtest

speedtest.net

Cloudflare Speed Test

speed.cloudflare.com

Control D

controld.com

DNS Made Easy

dnsmadeeasy.com

DomainTools

domaintools.com

ClouDNS

cloudns.net

Hetzner DNS

hetzner.com

SpeedVitals

speedvitals.com

Dynadot

dynadot.com

easyDNS

easydns.com

DNS Checker

dnschecker.org

NS1

ns1.com

CDN77

cdn77.com

DNSimple

dnsimple.com

Dinahosting

dinahosting.com

SpeedCurve

speedcurve.com

EuroDNS

eurodns.com

DomainRacer

domainracer.com

Dotcom Monitor

dotcom-monitor.com

DNSFilter

dnsfilter.com

PerfOps

perfops.net

CloudPerf

cloudperf.com

PerfAgents

perfagents.com

Speedscale

speedscale.com