strange large orders with guest_id=0 please help

[vinylwebNL]

I always check the shopping carts (Customers/Shopping carts) to see what people are adding in their carts.

About a month ago there was one shopping cart which was of much higher value than on average. At first I thought it was a good customer who wanted to buy a lot of records. About every day 1 or 2 records were added to this cart, and that was going on for over 1 month. I thought this is strange, why would someone first add about 80 items in a cart, and then eacht day add about one or two extra items to this cart.

So, I checked in the database to see if I could find the guests ip address. In the table with carts, I checked th shopping cart ID, and checked the corresponding guest_id. Strange thing: the guest_id was 0 (ZERO), That looks very suspicious to me,

I removed the cart completely to see what happend. One day later, I saw a new large shopping cart growing. I checked the corresponding guest_id and again.. guest_id = 0.

And guest_id = 0 does not exist in the guest table.

I would think that every guest with a shopping cart, would have at least its guest_id present in the guest's table as well.

 

Is anyone familiair with this? Is it normal that a guest_id is 0 in prestashop?

Please help to solve this.

 

I am using prestashop 1.4.4.1

 

Thank you for your help.

[Guest]

I think it is search engine bots logging the site. Nothing to worry about