As they say, don't put all your eggs in one basket/nest.
Setting up a DNS load balancer with a mirroring system takes less than half an hour and will make sure your site is up even if one of your servers is down.
A host that does not have their own data center should always consider using more than one data center just in case, there are many things that can cause downtime besides servers being seized.
With a valid search warrant the police can and is allowed by law to take anything that they have reason to believe is evidence and are allowed not to give it back to you since you may destroy the evidence.
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