The Woman of Interest and I each noted that our websites had been slow and unresponsive, so yester-day after-noon I contacted technical support at FourBucks.net. A technician got back to me, reporting that he’d found nothing amiss on their server but noted that our sites draw upon resources on other servers, and suggesting that perhaps the problem was there. This explanation seemed plausible, except that shortly after I received it we found that first cpanel and then simple FTP were slowing to an effective halt. When I checked a few hours later, the sites seemed to work fine more generally. So I think that our support query was vindicated.