Why is this a bad idea?
Upgrade the DNS so that when you resolve a name it returns the ip of two servers, one that's the server and one that serves a hash of the official webpage.
This makes it so there's two points that attackers require to manipulate for a few exploits.
There are other easier ways.
>>57350910
Congratulations you invented round robin DNS which is used since forever.
>>57350910
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>>57351029
Fucking this.
Crypto is a solved issue for most typical use cases you fags.