Demographic Targeting - Age - Gender - Income - Education level - Household size Geographic Targeting - Region - City - Zip code - Neighborhood Psychographic Targeting - Lifestyle - Values - Interests - Personality traits Behavioral Targeting - Purchase history - Website browsing habits - Email engagement - Social media activity Interest-Based Targeting - Hobbies - Activities - Entertainment preferences - Travel interests Custom Audience Targeting - Existing customers - Website visitors - Social media followers - Email subscribers Contextual Targeting - Content of the publication - Placement of the ad - Time of day or week