NYSB went down because some bot was hammering the site. A succession of quick visits that overwhelms our hosting.
(You can upgrade your hosting, but there is nothing that says the bot can't exceed anything you can buy.)
I called my host and they recommended blocking 20 IPs. Looks like they just picked the top 20 because some of y'all got blocked too.
I learned how to look into the traffic and see where hits are coming from. The attack was from several IPs in San Francisco. I removed everything we were blocking in NY and NJ.
If a bot attack came from like Syracuse, not sure how I would handle.