Again, this is so because your website is not hosted on just one server,  but on a highly available cluster of servers.

Your website will work if you accidentally put only one (or some) of the IPs, but will lose its load-balancing and failover ability.

It is strongly recommended to always add all A (or AAAA) DNS records provided by our “Add Domain” process when setting up your website’s domains (alternatively, opt to use a CNAME, if applicable).

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