A minor point to feed back: for me, https://www.buttondown.com/ fails to load, while https://buttondown.com/ works.
There is a lot of discussion about it online, like [0]. But whatever arguments there are, there is a whole generation that thinks that urls should start with www.
[0] https://stackoverflow.com/questions/486621/when-should-one-u...
Edit: If I ddg for NewYork Times, first hit is "https://www.nytimes.com", and https://nytimes.com redirects to that URL.