Best Free DNS Hosting Providers
KeyCDN
FEBRUARY 4, 2021
ISPs do cache DNS however which means if your first provider goes down it will still try to query the first DNS server for a period of time before querying for the second one. You can test the DNS lookup time and TTFB with a website speed test tool. Their network is made up of over 60 POPs and supports IPv6 everywhere.
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