Ask HN: DNS Providers which perform and respond to Health Checks

3 pointsmike-cardwell2 comments

I'm looking for a DNS provider that will perform health checks (http) against several configured web servers, from multiple IP addresses, and that will automatically add/remove A records from my Zone accordingly. Do such providers exist? If so, can anybody recommend one?

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I use https://developers.cloudflare.com/load-balancing/understand-... "DNS-only" mode. You configure pools of IP addresses (you can also use hostname) behind a domain or subdomain (e.g. www), and configure health check. Then if a server goes down it gets removed until the health check passes again. Checks can be configured to come from multiple locations to avoid false positives.

UltraDNS [1] and Dyn [2] both do this. Dyn was acquired by Oracle FWIW.

[1] - https://www.home.neustar/dns-services

[2] - https://account.dyn.com/

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