Founded 2001 · Cologne, Germany
The world's leading platform for domain buyers and sellers.
Since 2001, Sedo has connected millions of buyers and sellers across 220+ countries — with 24M+ listings, escrow-protected transfers, and a 60% market share in the domain secondary market.
Our story
Built for the domain economy since day one.
Great ideas and outstanding products need the right name — and the most memorable web address possible. But what if your desired domain is already taken? As the world's largest marketplace for domain names, Sedo helps customers find their perfect domain when their first choice is unavailable.
Every day we connect hundreds of buyers and sellers of web addresses — and with a 60% market share we are the leading provider in the domain secondary market. Since 2001, Sedo has been a member of the United Internet Group, now IONOS.
Who Sedo is for
Whether you are buying your first domain or managing a portfolio of thousands — Sedo has a service built for you.
Domain Buyers
Companies and startups searching for their ideal web address, building an online presence, or investing in strategic domain names.
- Browse 24M+ premium domains
- Bid in live and timed auctions
- Hire a broker for premium acquisitions
Domain Sellers
Domain investors, businesses with unused domains, and anyone who wants to monetise their web address portfolio professionally.
- Free to list, commission on sale
- Broker service for premium names
- Reach 3M+ active buyers
Industry Partners
Registrars, hosting companies, and domain investors who want to expand their offerings or integrate Sedo's marketplace.
- SedoMLS — the world's largest domain distribution network
- API integration for registrar partners
- Registry services for new gTLDs
Our journey
Sedo founded in Cologne
Launched as a search engine for domain offers — "Search Engine for Domain Offers".
1 million domains listed
Sedo becomes the first domain marketplace to reach one million listed domains.
Global expansion
Opened Boston office, expanded to serve buyers and sellers in 150+ countries.
Joins the IONOS Group
Sedo becomes part of IONOS, strengthening its position as Europe's leading domain marketplace.
24 million domains
Reached 24 million listed domains with 3 million active customers worldwide.
Leadership
Arthur Mai is CEO of Sedo and CMO at IONOS. He has over 15 years of marketing expertise, previously serving as CMO at idealo internet GmbH and joining IONOS in 2020.
Andreas leads product development at Sedo, focusing on the marketplace, domain services, and parking. He joined Sedo in 2013 and holds a degree in business administration from the University of Cologne.
Ready to find your perfect domain?
Join 3 million customers who trust Sedo with their most important online asset.