IONOS confirmed in its full-year 2025 earnings release on March 19 that it aims to close a sale of Sedo GmbH by Q3 2026. The decision to divest was made by the IONOS executive board in September 2025 and Sedo was reclassified as a discontinued operation at that point. No buyer has been named. No valuation has been disclosed. On March 23, IONOS appointed Arthur Mai, a former Sedo managing director and most recently IONOS’s chief marketing officer, as Sedo’s new CEO, replacing Michael Robrock who had held the role since 2020.

The sale process is taking place against a backdrop that makes it genuinely difficult to price the asset. Sedo’s revenue fell from €312.2 million in 2024 to €291.5 million in 2025. That annual figure conceals a more severe structural shift: in Q3 2025 alone, Sedo’s revenue fell 66% year-over-year, from €80.2 million to €27.5 million in a single quarter. The cause was Google.

What Google Did and When

Google AdSense for Domains had been the primary monetization infrastructure for parked domain pages across the industry for over a decade. In February 2025, Google announced it would opt all existing advertisers out of parked domain ad placements, rolling out in batches. By September 2025, the final and most valuable batch of advertisers had been removed. On February 10, 2026, parked domains were fully removed from Google’s Search Partner Network.

The impact at Sedo was not gradual. H1 2025 was anomalously strong, driven by Google’s Related Search for Content product and the remaining advertiser base before the final opt-outs. Revenue for the first half grew 73% year-over-year. Then Q3 arrived and the remaining advertiser base was removed. The quarterly revenue collapse was 66%.

Team Internet Group, the other major publicly listed domain monetization company, reported a parallel trajectory. Its search and monetization segment EBITDA fell 84% in 2025. Total gross revenue fell 40% to $481.9 million. The company laid off approximately 200 employees in summer 2025 and separately announced it is selling its domain registrar and registry services division, the Domains, Identity and Software segment that includes Moniker, HEXONET, and backend registry operations for extensions including .xyz and .co. Like Sedo, Team Internet has not named a buyer or confirmed a timeline.

The Domain Market in 2026: What Hosting Resellers and Founders Need to Know

What Sedo Actually Is

Sedo operates three lines of business. The domain marketplace and auction platform is the most durable: over 19 million premium domains listed, transactions charged at 10 to 15% commission for direct sales and 20% through its SedoMLS partner network. Domain brokerage is a separate professional service at 15% commission on successful negotiated transactions.

The third line, domain parking and traffic monetization, was what drove Sedo’s revenue to €312 million and what collapsed in 2025. Domain owners parked inactive domains on Sedo’s platform, Sedo ran ad feeds on the parked pages, and the revenue was shared. A large additional layer involved traffic arbitrage: third-party operators bought cheap traffic and directed it to parked pages to generate ad revenue at scale. Google’s shutdown terminated both the direct parking economics and the arbitrage model simultaneously.

IONOS’s CEO Achim Weiß described the rationale for the sale in the Q3 2025 announcement: “The AdTech business faces exciting challenges and at the same time has a lot of potential. To leverage this potential, increasing management attention is required, which we cannot provide optimally on a permanent basis. In the future, we want to focus entirely on our core business.” The Google shutdown accelerated and clarified that logic. Sedo requires either dedicated ownership focused on rebuilding its monetization infrastructure around new ad feeds, or a buyer who primarily wants the domain aftermarket platform and views the monetization operation as a secondary concern.

The SedoMLS Question

Approximately 650 to 700 registrar and marketplace partners worldwide integrate Sedo’s aftermarket inventory through the SedoMLS partner network. Partners surface Sedo’s domain listings directly in their own search results or offer full white-label aftermarket functionality under their own branding. InterNetX’s AutoDNS platform is among the integrations, connecting the aftermarket and parking functions through a single API.

A change of ownership introduces specific risks for these partners. The continuity of SedoMLS partnership agreements depends on the acquiring entity’s strategic priorities. A buyer primarily interested in the monetization business might underinvest in or deprioritize the aftermarket platform. A buyer focused on the aftermarket might not have the infrastructure or appetite to rebuild the parking and monetization operations.

The competitive backdrop is relevant here. GoDaddy’s Afternic is the dominant competing aftermarket network, with over 100 registrar partners. In June 2025, GoDaddy shut down Dan.com and migrated its users to Afternic. An extended period of ownership uncertainty at Sedo represents a window for Afternic to approach SedoMLS partners. That window is currently open and has been since September 2025.

When Is the Right Time to Sell Your Webhosting Business?

What the Parking Revenue Loss Means for Registrars

Many registrars automatically parked inactive or lapsing domains, generating incremental revenue from the parking feeds as a margin supplement on thin domain registration economics. That revenue stream has not recovered and is unlikely to recover to 2024 levels regardless of who owns Sedo. Google’s AFD shutdown removed the highest-quality ad feed from the market. Available replacements, including Yahoo feeds and various RSOC products, do not match AFD’s volume or cost-per-click rates. Security researchers have noted that as AFD disappears, parked domains are increasingly monetized by lower-tier ad feeds with less protection against malicious advertising.

Registrars that structured pricing or revenue projections around parking income need to treat that revenue as structurally impaired, not temporarily depressed. The February 10, 2026 date, when parked domains were fully removed from Google’s Search Partner Network, is a permanent change, not a policy that can be reversed in a future Google product cycle.

The Pricing Problem

Valuing Sedo in a sale process requires separating two assets that have been bundled under one roof: a durable domain aftermarket platform with global reach and a large partner network, and a monetization operation that generated most of the revenue and has now lost its primary source of that revenue. The aftermarket platform is underinvested but strategically valuable. The monetization operation is rebuilding from near-zero on an unclear timeline.

IONOS’s own filings acknowledge that the AdTech business evolved toward monetization at the expense of the marketplace. A buyer valuing Sedo primarily on its 2024 EBITDA, or its collapsed 2025 figures, would reach very different conclusions than a buyer valuing the SedoMLS network, the brokerage business, and the domain inventory as a strategic aftermarket asset independent of parking economics.

IONOS expects to close a transaction by Q3 2026. Whether a buyer emerges at a price both sides accept, and what that buyer’s strategic priorities imply for the registrar partners and domain sellers who depend on Sedo’s platform, are the questions the domain industry is waiting to answer.