No idea how many at one time however I did get 50,000 hits for a post on my blog that sat in the HN top 10 for most of a day. That's like 34 hits a minute so I

No idea how many at one time however I did get 50,000 hits for a post on my blog that sat in the HN top 10 for most of a day. That's like 34 hits a minute so I can safely assume I must have hit at least 10 at a time at some point during the day.