Etsy seller services revenue from services like Promoted Listings, payment processing and purchases of shipping labels through the platform.
Since 2015 Q3 Etsy generates more revenue from seller services than the marketplace revenue, and it continues to grow faster. Now more than 50% of Etsy's revenue comes from seller services.
Last reported quarter 2018 Q2 it was $81.19 million, up by 38% year-over-year from $58.82 million. From $200.86 million in 2016 it increased by 29% to $258.45 million in 2017.
Source: Etsy Quarterly Results.