Predetermined processing based on a user operation performed on a website

An information processing device comprising:

• an operation information reception unit that receives one or more pieces of first operation information regarding a user on a first site;
• an attribute value acquisition unit that acquires a first attribute value of the user, using the one or more pieces of first operation information;
• a learning information storage unit that stores learning information acquired using a set of first attribute values and second attribute values of two or more users;
• and
• a site processing unit that estimates a second attribute value of the user who has visited a second site from the first site, using the first attribute value of the user and the learning information, and performs predetermined processing on the second site, using the estimated second attribute value.

A non-transitory computer readable recording medium having recorded thereon a program for enabling a computer to function as:

• an operation information reception unit that receives one or more pieces of first operation information regarding a user on a first site;
• an attribute value acquisition unit that acquires a first attribute value of the user;
• and
• a site processing unit that estimates a second attribute value of the user who has visited a second site from the first site, using the first attribute value of the user and learning information, and performs predetermined processing on the second site, using the estimated second attribute value,
• wherein the learning information is acquired using a set of first attribute values and second attribute values of two or more users.