Public DNS Purge Cache

Some public DNS operators provide interfaces to purge individual DNS records. This can be useful if the DNS has cached erroneous data or change is necessary faster than the TTL.

• Cloudflare Quad One: https://one.one.one.one/purge-cache/
• Google DNS: https://developers.google.com/speed/public-dns/cache
• OpenDNS: https://cachecheck.opendns.com/