Match ranks for 17, keywords. Of those keywords, Match ranks on page 1 for 4, of them. Those page 1 rankings look pretty good compared to Match, but all of eHarmony's keywords only drive 1. Match's social media traffic makes up 3. Dating is social, and the stigma around online dating is virtually dead. This combination should mean that both eHarmony and Match have the ability to get a large percentage of traffic from the social platforms.
Both dating sites get more traffic from the Russian social media website VK than from Instagram.