After a two-year investigation by the country's antitrust authority the Turkish generalist online classifieds platform Sahibinden has been fined TL 40.2 million (around $1.5 million).
According to a report issued by the authority, Sahibinden "holds a dominant position" in the real estate and vehicle sales categories.
The report says that the Istanbul-based company used its position to make it harder for customers to use other portals and imposed illegal contractual exclusivity with some clients.
The watchdog has imposed a series of conditions and sanctions on Sahibinden going forward:
Sahibinden has 60 days to appeal the decision.
Founded in 2000 by the influential Aksoy Group, Sahibinden is the leading general classifieds platform in Turkey and was one of the first e-commerce sites in the country.
The accusations and report's findings are similar to those of a recent case from South Africa which saw strict antitrust conditions imposed on the country's leading portals.