Jdate is a website that jewish men and women, especially those who are not practicing jews or who live in areas where there are not many other jews, form romantic relationships. what do jewish people who use this website care about?

Homogamy

Explanation:

Homogamy is defined as creation of link and connection between people who persist particular cultural manner which makes them similar to each other in some way. The formation of bond is based on classified mating .The groups that are formed through homogamy are based on ethics, culture, religion, gender, class etc.

According to the situation mentioned in question, JDate is used by Jewish people for the purpose of homogamy because they tend to make relationships based on non-Jew practicing people or who live far from Jew areas.They are thus searching for minorly non-Jewish cultural background people.