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by chaz6 2807 days ago
You could use two independent dns providers for the same domain (i call it inverse split horizon). I am a proponent of dns service discovery (using NAPTR and SRV records) so that by going to e.g. www.github.com, the dns provides a list of servers, and the final server would be your debug site (kind of like how there are MX records with different priorities, except naptr/srv is service agnostic).