We host a shop with around 100 orders per day. In the day time there are around 10 orders per hour. Some times, for an hour there is no order at all.
The shop owner, who monitors the current conversions, then makes a test order (which works fine). And right after that the orders start to flow in again.
This seems to be not linked to a specific time of the day. And the unique visitors do not drop - only the conversion rate.
What can be the reason for this?