The first two days of June brought a cluster of measurement changes from Google that are distinct in mechanism but converge on the same underlying question: what counts, who counts it, and how long does the record last. Three separate announcements appeared on June 1. A fourth, carrying a June 2 effective date, had been announced May 27. Taken together, they represent a dense week of infrastructure changes affecting how advertisers count audiences, gather bidding signals, and track leads inside the platform.

A new definition of who is watching

Starting June 2, 2026, the Google Ads API adopted the "Total Co-view" definition for seven reach and frequency metrics. The announcement was published May 27 on the Ads Developer Blog by Mattia Tommasone of Google's Advertising and Measurement Developer Relations team. The affected metrics include metrics.unique_users, metrics.average_impression_frequency_per_user, and five frequency threshold variants covering two-plus through ten-plus exposures per user.

What changed is definitional, not structural. No API migration, no code updates. The numbers simply shifted on June 2. The reach count now includes every person present in front of a connected TV screen when an ad plays - not only the account holder. Google's co-viewing measurement draws on CTV panel data and real-time, census-level surveys covering more than 100 countries in over 70 languages, using a dynamic model that adjusts for day-of-week, time-of-day, country, and user demographics.

The consequence for campaign reporting is real. A frequency cap campaign targeting three exposures per person per week will now see its unique user pool expand as additional household members enter the denominator. The same impression volume distributes more thinly. Reach numbers increase. Frequency-per-person decreases. Historical comparisons before June 2 carry a definitional break that dashboards may not flag automatically.

Google's stated rationale is alignment with offline measurement standards. Television ratings from Nielsen and national measurement bodies have always credited every person in the room, not just the viewer who held the remote. Embedding that logic into standard API definitions - rather than leaving co-viewing as optional enrichment - removes one asymmetry that made YouTube CTV campaign numbers structurally smaller than equivalent linear TV figures. A 2022 Nielsen study cited by Google found that 26% of the time, multiple adults watched YouTube together on a connected TV screen, compared to 22% on linear TV. The Help Center notes that Nielsen DAR guarantees remain in place and are unaffected by the definition switch.

On the same day, the deletion of shorter-term Google Ads performance data began. Search Engine Roundtable reported on June 1 that hourly, daily, and weekly reporting data older than 37 months is now unavailable through the platform and APIs, per a policy Google had announced in advance. Reach and frequency data - including the seven metrics now carrying co-view definitions - is on a separate three-year retention limit.

IP addresses in AdSense bid requests: publisher control

On June 1, Google launched a new AdSense control that lets publishers include the full IPv4 address in programmatic bid requests to Authorized Buyers, Display & Video 360, and Google Ads. The feature is off by default. Accessing it requires navigating to Brand safety > Content > Blocking controls > Manage Ad serving. The toggle operates counter-intuitively within that interface: disabling it allows sharing; enabling it blocks it. That inversion reflects the panel's architectural role as a blocking controls area, where the on-state represents an active restriction.

The practical difference between truncated and full IP data is the fourth octet - the final number in a standard address. Removing it collapses geolocation precision from a specific address block to a broader subnet. Buyers lose resolution for city-level targeting, invalid traffic detection against known data center ranges, and household-level frequency management in cookieless environments. Three demand channels receive the data simultaneously when a publisher opts in; no partial configuration is available.

The feature does not activate for non-personalized ads, limited ads under the IAB TCF framework, or restricted data processing requests. For European publishers and those with substantial US privacy-law state traffic, a significant share of impressions will remain on the truncated path regardless of account settings. European data protection authorities have consistently classified IP addresses as personal data under GDPR.

A native leads screen that keeps data inside the platform

The third June 1 change is operational. Google added a dedicated Leads screen inside the Conversions section of Google Ads, confirmed through the official "Leads in Google Ads" product page and first spotted by Hana Kobzova of PPC News Feed. The screen shows aggregate lead counts for the past 60 days, broken into four stages: raw, qualified, converted, and lost. A row-by-row table below displays name, stage, submission date, email, phone, and form name. Retention is capped at 60 days, or 30 days for sensitive fields.

Google frames the feature as a lightweight CRM built directly into the platform, removing the need to switch to external software. The connection to Smart Bidding is the operative part: as leads progress through stages inside the platform, those transitions can feed quality distinctions back into bidding models - differentiating a converted lead from a raw form submission. For lower-volume advertisers without a dedicated CRM, the screen may reduce external dependencies. Larger operations with established sales pipelines will still need the full offline conversion infrastructure to close the bidding signal loop.

X's advertiser profile returns, partly

Away from Google's infrastructure cycle, Digiday published an analysis on June 1 using third-party data from Sensor Tower showing X's advertiser composition is beginning to resemble its pre-Musk profile. The largest ad categories on X by U.S. ad spend in 2026 to date are media and entertainment at 24%, shopping at 13%, software at 12%, financial services at 11%, and gaming at 8%. The major advertisers who departed following Elon Musk's acquisition in late 2022 are back - not in full numbers, but in measurable volume. This is the first confirmation by third-party data rather than platform self-reporting.

Whether the recovery reflects genuine brand safety confidence or simply an absence of alternatives at comparable scale remains an open question. Both factors are plausibly in play. X has made changes to its content moderation approach since the peak departure period of 2022-2023, and the industry's brand safety conversation has shifted accordingly.

Meta AI chatbot allowed high-profile account takeovers

On June 2, AdExchanger reported that Meta's AI customer support chatbot - deployed across the full ads platform in March 2026 - contained a security flaw. Hackers took over high-profile Instagram accounts, including those for Sephora and Barack Obama, by convincing Meta's AI support system they were the legitimate account owners. The chatbot then linked new email addresses as admins without adequate identity verification. Meta did not respond to press inquiries from 404 Media, which broke the story, but appears to have patched the vulnerability. Several of the account takeovers reached national news outlets. The incident highlights the risk of routing account management decisions through an AI layer susceptible to social engineering.

Also noted

  • June 1, 2026: YouTube launched Primetime Channels in Mexico, starting with ViX Premium, giving the platform a paid subscription tier in a country where it already holds 11.6% of total TV viewing time per Nielsen IBOPE data - ten days before the 2026 FIFA World Cup opens in Mexico City. PPC Land
  • June 1, 2026: The Search Engine Roundtable daily recap noted that the Google May 2026 core update continued to produce significant ranking volatility over the May 30-31 weekend; the update was announced May 21 and Google Ads simultaneously began testing healthcare ads in AI Mode.
  • June 1, 2026: Amazon published Prime Video's full US content schedule for the month, including The Legend of Vox Machina Season 4 and WNBA coverage, extending the platform's strategy of combining original content with live sports to maintain advertising inventory across audience segments. PPC Land
  • June 1-2, 2026: The AdExchanger June 1 roundup highlighted Snowflake's emergence as an AI content licensing intermediary, with the Washington Post, Associated Press, People Inc., and USA Today Network among 17 publishers using its Cortex Knowledge Extensions to reach enterprise AI clients through retrieval-augmented generation pipelines, cutting deals that Digiday previously described as reaching six figures.