Asagena phalerata doesn't occur in my country, so I don't know this spider. In Slovenia there's only A. phalerata in the genus Asagena. The spider is often found near nests of ants.
How stupid I searched on www.nederlandssoortenregister.nl, which contains all Dutch species for Asagena, but I should change it to Steatoda. I never saw the species because there are no suitable biotopes near to my village