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ahupowerdns/gist:19f2ee9c73f98f017888

Created January 15, 2016 15:26
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gistfile1.txt
1: blogspot.com
2: test.blogspot.com
3: blogspot.co.uk
Now we get a lookup for zzz.blogspot.com: is it on the list? We do a binary search and end up between 2 and 3. So how do we decide if zzz.blogspot.com is on the list?
Walk backwards until an entry matches? When do we stop?
This setup only works if we do 4 lookups, one for zzz.blogspot.com., blogspot.com., com., .. which is exactly what we don't want.
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