eHarmony is an established online dating website launched in 2000, known for its focus on creating compatible matches based on detailed personality assessments. The site operates based on a proprietary questionnaire that probes into a user's characteristics, beliefs, values, emotional health, and skills. This information is then used by eHarmony's algorithms to match individuals with others who share core traits and values, believed to replicate the dynamics of happy couples. The platform also considers behavioural data, like the average time spent on the site, to fine-tune its matchmaking process. eHarmony has been at the forefront of creating meaningful relationships based on compatibility since its inception, emphasizing its commitment to fostering long-term connections.