Advertising businesses tend to grow by addition. More impressions, more surfaces, more data, more units on the page. The two days covered here ran the other way, and the subtraction came from several directions at once.

Google removed free product listings and popular product carousels from search results across the European Economic Area, with independent trackers recording declines close to total in five countries. A publishing platform serving more than 900 sites deliberately destroyed a quarter of its own display impressions and reported that the remaining inventory sold for considerably more. A study commissioned by Comcast's advertising arm measured what happens to brand recall when a streaming service does the opposite and packs the break. A programmatic executive laid out why connected television buyers can see which programme carried an advertisement without being able to choose it in advance. Italy brought into law a decree that makes the ability to advertise itself removable, as a sanction attached to artificial intelligence offences. And a compromised Reddit account belonging to HBO Max spent two days advertising counterfeit versions of HBO Max.

Running against all of that, two companies spent the same Friday adding. Infillion bought Foursquare, folding sixteen billion verified check-ins into an attribution stack assembled almost entirely by purchase. Taboola made an offer for Dianomi, a finance-vertical advertising network, at a price between nineteen and twenty-seven million pounds.

The question underneath each item is the same one, asked about a different asset: who decides what disappears, and who collects when it does.

Europe's shopping results lose their free listings

Over roughly forty-eight hours on September 17 and 18, free product listings and carousel formats disappeared from Google search results across the European Economic Area. The change was not announced in advance, and it was not subtle.

Hugo Huijer of Productrise documented drops of approximately 90 to 100 per cent in countries where his tooling holds sufficient data: Germany, France, Belgium, Sweden and the Netherlands. Semrush tracking showed similar declines across affected regions. Adriaan Dekker posted screenshots of the shift, describing free listings from Google Shopping as disappearing in the EEA and noting that the space was going to price comparison services. Ginny Marvin, Google's Ads Liaison, confirmed that the removal followed from Digital Markets Act requirements in Europe.

Free product listings were the unpaid half of Google Shopping. Merchants supplied a product feed through Merchant Center and could appear in shopping surfaces without bidding, which gave smaller retailers a route into a unit that had previously been available only to advertisers. The popular products carousel, which renders across the top of a results page for commercial queries, was the most visible expression of that inventory. Both are now largely gone in the EEA, and the space is being given over to comparison shopping services, described in the Digital Markets Act context as vertical shopping services.

The regulatory logic is the self-preferencing prohibition. If Google operates a shopping service and also ranks competing shopping services, the Commission's position has been that the two cannot be resolved by giving Google's own product surfaces the best position on the page. Google's answer, in the version now live, is not to rank its own listings lower but to remove them from the general search results and hand the real estate to third parties. Google has previously described the European compliance changes as the largest reduction in search quality it has ever made, which is a characterisation rather than a measurement, and one that neither the Commission nor any independent party has tested.

For merchants, the mechanics are specific. A retailer in Germany who had been receiving unpaid traffic from popular products placements has lost a channel over the course of two days, with no transition period and no notification. That retailer's options are to buy Shopping advertisements, to work through a comparison shopping service that will take a margin, or to accept the loss. None of those choices is equivalent to the removed placement, because free listings cost nothing and carried no intermediary.

For comparison shopping services, this is the outcome the sector has litigated toward since the original 2017 Commission decision. The awkward part is that the inventory being transferred is the inventory Google built. The remedy delivers space rather than competition in the underlying auction, and the entities receiving that space are, in many cases, resellers of Google Shopping advertisements themselves.

The timing sits next to two live European deadlines. Google's compliance obligations under the Commission's search specification decision, case DMA.100193, fall due on September 21, and the Commission's sixty-day window for self-preferencing changes closes in the same week. A removal executed on September 17 and 18 is therefore not a product decision that happened to land in September. It is a compliance action delivered days before a deadline, and the fact that practitioners discovered it by running rank trackers rather than by reading an announcement is itself the pattern of the year.

A publisher deletes a quarter of its inventory and gets paid more

On the other side of the same trade, a company chose subtraction and published the arithmetic.

Ezoic, which operates advertising technology across more than 900 publisher sites, changed how its advertisements render on August 4 and reported the results on September 17. Display impressions fell by 25 per cent. Viewability rose to 87 per cent. Prebid win CPM increased 54 per cent, and revenue per thousand requests rose 41 per cent.

The change itself is unglamorous. Advertisements now render only when they are about to enter the viewport rather than at the moment the page loads, which is lazy rendering applied at the ad-serving layer through the renderMarginPercent and fetchMarginPercent parameters rather than lazy loading applied to page assets. The distinction matters, because lazy loading images and scripts is a page-speed technique with a documented history of damaging organic traffic when misconfigured. Delaying the ad call changes what enters the auction.

Ezoic's account of the prior state is direct. Before August 4, in the company's description, a meaningful share of the display impressions it sold never entered a reader's viewport. That is a statement about counting, not about demand. Under the count-on-download convention that has governed display billing for years, an impression is recorded when the creative is delivered to the browser, regardless of whether the browser ever scrolls far enough for a human to encounter it. The industry viewability standard, finalised by the IAB, the Media Rating Council and the Mobile Marketing Association in October 2017, requires 50 per cent of pixels in view for one continuous second, with a reduced 30 per cent threshold for units of at least 242,500 pixels. An impression can be billed and still fail that test, and by Ezoic's account roughly half of its display impressions did.

The exchange-level figures are where the case gets harder to dismiss. Viewability rose 33 percentage points on PubMatic, 34 points on OpenX and 31 points on TripleLift, bringing all three into the low 80s. Win CPM in the Prebid auction rose 54 per cent, and revenue per thousand requests rose 41 per cent, which means revenue held rather than falling with the impression count. Buyers did not change their bidding behaviour in response to a supplier's announcement. They bid the same way into a different set of opportunities, a point the report makes plainly: the platform changed what it sent them to bid on, not how they bid.

Two figures sit alongside those and should be read with more caution. Ezoic reported a 23.6 per cent quarterly rise in earnings per thousand visitors in July 2026 and a 7.7 per cent weighted uplift across January to July 2026, both of which cover periods before the rendering change took effect and therefore measure something else. The August 12 baseline for the comparison window opens eight days after implementation, which limits how cleanly the before and after can be separated.

The commercial test the report applies to itself is the right one. A viewability gain that does not move price is a vanity metric, in the report's framing, and the price moved. The principle underneath is stated more bluntly still: if nobody could have seen it, it should not count.

That principle is about to stop being optional. Google notified AdSense publishers on September 1 that AdSense and Ad Manager move to begin-to-render impression counting on February 17, 2027, with DV360 and Campaign Manager 360 shifting billed impressions in the same month. Under begin-to-render, an impression registers when the creative starts to paint rather than when it downloads. Publishers running large volumes of never-seen inventory will see their counted impressions fall on a fixed date whether or not they have prepared, and the ones who have not restructured their auctions will absorb the reduction as lost revenue rather than as higher clearing prices.

Even at 87 per cent, thirteen impressions in every hundred still fail the viewability threshold. The floor is not zero, and no rendering change makes it zero.

What happens when the break gets longer

FreeWheel, Comcast's advertising technology division, published research with MediaScience on September 15 and distributed it on September 17 that measured recall against advertising load in streaming. The headline comparison is a 58 per cent difference in outcome produced by five minutes and fifteen seconds of additional commercial time.

The study ran 436 participants through 30-second advertisements in lab and in-home settings, using eye tracking and post-exposure surveys. Participants chose a 30-minute programme on an unbranded streaming interface and watched it in what the report describes as a lean-back posture. In the light condition the programme carried three minutes forty-five seconds of advertising per half hour, equivalent to 12.5 per cent of running time or seven and a half minutes per hour. In the heavy condition it carried nine minutes per half hour, or 30 per cent of running time, eighteen minutes per hour.

Unprompted recall was 41 per cent in the lightly loaded programme and 26 per cent in the heavily loaded one. Every comparison in the study is reported at a p<0.05 significance threshold.

The second set of findings compares environments rather than loads. A single streaming advertisement produced 33 per cent unaided brand recall against 12 per cent for a social media placement, a ratio of roughly 2.7 to one. At two exposures the figures were 53 per cent and 24 per cent. A mixed pairing of one streaming and one social exposure produced 42 per cent, which is to say better than two social exposures by a factor of 1.8. Visual attention reached 94 per cent for streaming against 75 per cent for social, and streaming viewers spent 71 per cent of an advertisement's running time gazing at it against 52 per cent for social viewers. Self-reported lower-funnel intent followed the same direction, with streaming exposure associated with roughly twice the stated likelihood of visiting a website, seeking information or looking for a deal.

The disclosure gaps are substantial and worth naming, because the comparison is between a channel the sponsor sells and channels it does not. No per-condition sample sizes were published, nor confidence intervals, fieldwork dates, brands, categories, screen sizes or device types. The social conditions used 30-second creative in horizontal feeds on Instagram and YouTube and vertical feeds on YouTube Shorts and Facebook Reels, and a 30-second advertisement in a scrolling feed is not the format most social campaigns run. No co-viewing measurement was included. The lower-funnel figures are survey-stated intent with no conversion tracking, no incrementality design and no published base rates behind the multipliers.

What survives the caveats is the ad-load finding, because that comparison holds the environment, the creative length and the posture constant and varies only the quantity. It also aligns with what other parties have measured independently. Magnite found consumer tolerance sitting at about 8.7 minutes of advertising per hour, which is close to the study's light condition and less than half its heavy one. An All About Cookies survey on April 22, 2026 found 76 per cent of United States streaming subscribers believed platforms carried too many advertisements. FreeWheel's own January 2024 work with MediaScience, across more than 700 participants, concluded that shorter pods could deliver up to twice the brand impact.

Which brings the inventory question back around. A streaming service selling eighteen minutes an hour is selling more impressions of demonstrably lower value than one selling seven and a half, and the buyer pays per impression in both cases. That is the same structure Ezoic addressed on the display side, expressed in seconds rather than pixels.

Control over where those advertisements land remains a separate problem. Tom Discepola, senior director of programmatic at Tatari, set out the distinction between show-level reporting and show-level buying on September 18, citing an industry figure that 43 per cent of connected television buyers have little or no confidence in the inventory they are purchasing. Reporting where an advertisement ran, in his account, is fundamentally different from dynamically optimising a campaign at the individual show level, and scaled show-level optimisation is not a standard product. In many cases the functionality remains in early development.

The reasons are structural rather than commercial. Content identifiers pass inconsistently through the bidstream, metadata matching depends on reconciliation against catalogues such as Gracenote, and privacy constraints including the Video Privacy Protection Act limit how granular title-level data can be at the household level. Typical show-level reporting surfaces a top 25, 50 or 100 ranking after the fact, which is useful for a post-campaign review and useless for a bid decision. Buyers who want title-level control negotiate private marketplace deals with individual publishers, which reintroduces the manual process programmatic buying was built to remove. Linear television has offered programme-level transparency for decades.

Infillion buys the panel, Taboola bids for the vertical

Two acquisitions landed on September 18, both of them purchases of assets that would be slow or impossible to build.

Infillion acquired Foursquare, terms undisclosed. Foursquare now functions as location infrastructure rather than a consumer product: more than 100 million points of interest across 200 countries, data derived from 250 million United States devices, and 16 billion human-verified check-ins. Apple Maps, Uber, Snapchat and Spotify are customers, as are the major agency groups.

The company's route here was long. Founded in 2009 as a check-in application whose users competed for mayorships of local venues, Foursquare spun the check-in feature into a separate application called Swarm in 2014 and turned toward business-to-business location intelligence. It bought the attribution company Placed from Snap in 2019 and merged with the location data provider Factual in 2020, producing a combined business with revenue above $150 million. The consumer application had by then become secondary to the data operation that grew out of it.

Infillion's own history is a sequence of purchases. Before taking the Infillion name in 2022 it absorbed the connected television platform TrueX, the location companies Fysical and Gimbal, the out-of-home platform InStadium, the managed services firm UberMedia and Drawbridge's media business. It bought MediaMath out of bankruptcy for $22 million in 2023. It acquired the retail purchase data company Catalina in February 2026. Rob Emrich, Infillion's chief executive, described the company as an active acquirer as clients increasingly opt for an omnichannel platform over point solutions.

The strategic fit is legible without any interpretation. Catalina records what people buy. Foursquare records where people go. Together they support attribution claims about physical behaviour that neither platform advertising nor retailer environments can make. "Marketers have been trying to prove that their advertising drives real-world outcomes for decades," Emrich said. "Walled gardens and retailer apps can only measure what happens inside their own environments."

Foursquare keeps its brand and continues serving third-party customers, at least initially. That was the arrangement with Catalina too, and Infillion has previously indicated that Catalina's data would eventually be available only through its own platform. The consumer applications are unresolved: Infillion is weighing options for Swarm and for Superlocal, an artificial intelligence mapping and local discovery application Foursquare acquired last year, including open-sourcing the underlying models and pursuing partnerships. The detail that complicates any decision is that first-party check-in data from those applications feeds the value of the location panel. Shutting the applications down degrades the asset that was bought.

The second deal is smaller and more conventional. Taboola made an offer for Dianomi, a United Kingdom advertising technology company that connects financial advertisers with business and finance publishers. Terms include a cash component and earnout provisions tied to publisher revenue, valuing Dianomi at between 19 million and 27 million pounds, roughly $25 million to $36 million. Completion is expected before the end of 2026, subject to regulatory approval and a shareholder vote.

Dianomi's publisher list includes Reuters, CNN Business, The Wall Street Journal and The Times of London, and its advertiser base includes Charles Schwab and Bank of America. "Together with Dianomi, we will be able to offer an even larger, highly curated, trusted network of publishers that advertisers can tap into to reach audiences," said Adam Singolda, Taboola's chief executive.

What Taboola is buying is a category relationship rather than a technology. Financial services advertising carries compliance requirements, suitability constraints and a buyer set that tends to negotiate directly with premium publishers, which is why a network of that size can survive alongside far larger recommendation platforms. Whether a curated finance vertical retains its premium once absorbed into a general content recommendation business is the question the earnout structure, tied to publisher revenue rather than to a headline multiple, appears designed to answer.

The right to advertise, removed two ways

Italy published a decree that treats advertising as a privilege that can be withdrawn, and a compromised social media account demonstrated what happens when the privilege is taken by someone else.

Legislative decree 160/2026 was signed on September 9 by President Sergio Mattarella, countersigned by Prime Minister Giorgia Meloni, published in Gazzetta Ufficiale number 214 on September 15 and enters into force on September 30, 2026. It builds criminal liability around artificial intelligence systems ahead of the European AI Act's high-risk obligations, which apply from December 2, 2027.

The criminal provisions sit in a new Article 437-bis. Omitting required security or human oversight measures carries one to five years of imprisonment where the omission produces a danger to life, and two to eight years where State security is endangered. Altering high-risk systems carries two to six years where danger to life or to public or individual safety follows, and three to ten years in the State security case. Gross negligence reduces the penalty by between one third and one sixth.

Corporate liability arrives through a new Article 25-vicies of the administrative liability regime. The Article 437-bis offence attracts a pecuniary sanction of between 600 and 1,000 quote, and unlawful dissemination of artificial intelligence generated or altered content attracts between 200 and 700 quote. A quota is valued at between 258 and 1,549 euros, which places a theoretical ceiling around 1.5 million euros.

The provision with the most direct commercial consequence is the interdictive sanction. A company convicted under these articles can be prohibited from advertising its goods or services for three months up to a maximum of two years. That is a different instrument from a fine. A financial penalty is absorbed and amortised; a two-year advertising prohibition removes a company from the market's demand-generation channels entirely, and no compliance budget substitutes for it. Giulio Coraggio, who leads intellectual property and technology at DLA Piper, has been among those reading the decree's practical reach, and the Italian context includes deepfake advertisements circulated on Mediaset properties using the likeness of the journalist Enrico Mentana.

Surrounding provisions set the operational detail. Civil access-to-evidence non-compliance by third parties carries penalties between 1,500 and 10,000 euros. Biometric data collected under the real-time identification provisions must be retained for seven days from collection and deleted automatically, while access logs are kept for five years. Police authorisation for real-time biometric identification is capped at fifteen days and renewable for successive periods, with urgent cases requiring a prosecutor's decision within a further twenty-four hours. Systems already in operation have one year to be brought into line with Chapter II of Title I.

The involuntary version of the same theme played out on Reddit. HBO Max's verified account was compromised and used to run fraudulent advertising for two days before anyone noticed. The operators ran 108 different advertisement permutations promoting counterfeit HBO Max downloads and promotional offers, with landing pages on the domain hbomax.us, one character class away from the legitimate hbomax.com. Targeting was segmented by device type and by cryptocurrency wallet ownership, routing different visitors to different data harvesting pages.

Detection was accidental. A cybersecurity professional in the r/cybersecurity subreddit was served one of the advertisements and recognised it. Hudson Rock subsequently published a technical breakdown of the operation.

"After learning of the issue, we locked the account, removed the ads and began working with HBO Max to strengthen its account security," a Reddit spokesperson said. Warner Bros. Discovery did not respond to a request for comment. A party with knowledge of the takeover attributed the compromise to a compromised account belonging to someone working on the HBO Max team, with user error described as the general root cause of account takeover scams of this kind.

The structural point is that a verified brand account on an advertising platform is a credential, and the platform's own targeting, delivery and scale are what make its theft valuable. Running 108 creative variants with segmented targeting is not a defacement; it is a media campaign, executed with a stolen identity and a real budget.

The comparison case cited alongside it is instructive precisely because no attacker was involved. A nine-year-old spent $118,000 on YouTube advertisements promoting his gaming channel using a father's logged-in Google business account, against an intended limit of $20. Google introduced device authenticator applications, passkeys and biometric sign-in in August, together with a week-long delay before newly registered passkeys unlock spending budgets. A platform that lets an authenticated session spend six figures without a second check has built a control problem, and whether the session belongs to a criminal or to a child is a detail of circumstance rather than of design.

Set the two together and the shape is consistent. Italy is making the right to advertise revocable by a court. Reddit demonstrated it is already revocable by whoever holds the password.

Also noted

  • September 18: The Interactive Advertising Bureau's Playfronts event put gaming's share of media spend at 2.4 per cent against 67 per cent of Americans playing weekly, a gap Overwolf chief executive Shahar Sorek called the single biggest mismatch between attention and investment in media today (AdExchanger).
  • September 18: Google now requires merchants to label adult-oriented products in ecommerce feeds using the adult attribute in Merchant Center or hasAdultConsideration structured data markup, a requirement that governs Shopping surfaces rather than organic web results (Search Engine Roundtable).
  • September 18: Merchant Center documentation now supports adding product reviews through the API, replacing previous guidance stating that the API was not supported for product reviews data sources, with accounts still requiring manual enablement by a Google agent after an interest form submission (Search Engine Roundtable).
  • September 17: Azerion launched its first games portal outside Europe through its GameDistribution unit, placing a three-rail template of daily challenges, classic games and mini games on Correio, a Salvador daily recording 15.7 million monthly visits with 95 per cent mobile traffic (PPC Land).
  • September 18: Senators Tammy Baldwin and Rick Scott wrote to the Federal Trade Commission about Amazon's Alexa and Walmart's Sparky shopping assistants, citing research claiming the systems obscure United States manufacturing information; Amazon disputed the claim, saying country-of-origin details appear on product pages (AdExchanger).