SDTT returns a new type of notifications, anyone knows what they are and what's their role?

Hi all,

I've come across 1 new type of notification when using Google SDTT,
respectively:
urn:spore:outlink_count:3  (the end number varries) - see the attached
picture for an example.[image: Inline image 1]

Anyone knows what the meaning for these notifications and how can it be of
help?
Thanks.
Arthur