The Maze: Google Ads just got more expensive for European ecommerce, and the return got worse. Channable's new benchmark shows cost per click up 15% year over year across more than 10,000 EU and EEA ecommerce advertisers, while ROAS, or return on ad spend, fell more than 40%. That is the ugly version of paid search inflation: retailers pay more to get the visit, then get less back from the same auction.
The squeeze is happening in the core product-ad pipes. Channable's benchmark covers 1.38 billion euros in verified Google Ads spend and includes Shopping and Performance Max campaigns. CPC rose by about 0.06 euros per click between June 2025 and June 2026. Standard Shopping ROAS fell 43%. Performance Max ROAS fell 46%. Performance Max is Google's automated campaign type that can run across Search, Shopping, YouTube, Display, Discover, Gmail, and Maps. Shopping ads are more product-feed driven. Both sit close to ecommerce demand capture, which is why the numbers matter more than a normal media-cost complaint.
The mechanism is less mystical than the dashboard makes it look. Shopping ads use Merchant Center product data such as product title, image, price, and store details to match products to searches. Performance Max then layers Google AI over bidding, budget allocation, creative assets, audience signals, and conversion goals. That means retailers cannot control the whole auction. But they do control a lot of the inputs. Weak product titles, messy feeds, poor conversion tracking, bad landing pages, or stale price and stock data make the machine spend into fog. Channable, which sells feed-management and PPC automation tools, has an obvious commercial interest here. It is still directionally right: data quality is now ad performance infrastructure.
Q4 is where the pain compounds. The benchmark shows combined Google Ads CPC was 9.1% higher in Q4 2025 than in Q1, while total ad spend was 47.9% higher. That is the seasonal trap. Cyber Week, Black Friday, and holiday shopping concentrate demand, so more advertisers bid into the same product-intent moments. If click costs rise while conversion rates soften, the budget plan breaks twice: once in media spend and again in margin. A retailer can "win" traffic and still lose the economics.
Benchmarks are becoming a defensive tool, not a vanity chart. Channable's official benchmark uses aggregated, anonymized account data and median values so large advertisers do not distort the picture. It lets advertisers compare CPC, click-through rate, conversion rate, cost per acquisition, and ROAS against a market reference. That helps operators separate two questions: is Google getting harder for everyone, or is my account underperforming the market? The first calls for budget realism. The second calls for feed, landing-page, bidding, and campaign repair.
Why it matters: Paid search used to be treated as a variable cost with a dashboard. Now it looks more like operating infrastructure. European ecommerce brands are not only buying clicks from Google. They are renting access to product discovery under auction pressure. The operators with cleaner product data, tighter conversion measurement, and colder Q4 math will survive the higher click tax. The rest will discover that growth can be very busy while margin quietly leaves the building.
