I remember having similar issues with one customer who was getting denial of service every time they visited a site with a banned word. The word was fetched w

I remember having similar issues with one customer who was getting denial of service every time they visited a site with a banned word. The word was fetched with an Ajax request (non https) and it would terminate any connections from the Mac address for a few hours. There was some Kind of adult filtering in place. Took far too long to figure out what was happening.