I've kept tracking guest counts occasionally, and over the past 5 days it kind of looks like there's a pattern:
The bottom of the "trough" on the 22nd is at 1pm GMT+1, which means
if this pattern is real and not just a data artefact, the bots are cycling from ~2600 at GMT noon to ~3000 at GMT midnight and back.
I'm not sure that qualifies as useful information, unfortunately.
EDIT: I've also just had my daily "this website has no security certificate and is going to eat your computer" warning at 1pm GMT+1. I'm not sure if that's my computer waiting a day between sending the message, or if the Downs does
something at GMT noon that could be linked to both issues.
hS