The Ten-Day Reset & The Digital Ad Revenue Flip
In the ten-day window between May 11 and May 20, 2026, Google released its second core update of the calendar year and presented Google Marketing Live, all while their competitors did everything they could to take shine off their announcements and keynote. At the same time, OpenAI decided to move its ChatGPT advertising to public self-serve, Meta made moves on Google with ad revenue, Instagram’s new solo photo sharing app would go against Snapchat, and Publicis was banking on $2.2 billion to purchase LiveRamp. And if these weren’t enough, the numbers regarding AI search traffic started to solidify, as retailers in the U.S. documented a 48% increase in conversion rates for visitors referred by AI compared to traditional organic search results.
In this post, we’ll be breaking down each of these stories, what the data is telling us, and how digital marketers, teams, agency owners, and managers can take advantage of these updates to stay on top of their competitors.
The May 2026 Core Update from Google Starts
What Google Has Told Us
The update started on May 18 and was officially confirmed on May 21 via the Search Status Dashboard and the Google Search Central account on X. This update, which will most likely take 2 weeks to complete, was characterized as “a regular update designed to better surface relevant, satisfying content for searchers from all types of sites.”
There was no further clarification or guidance on exactly what this new update targets, which is exactly what they did for March’s core update as well.
Ranking Instability Reported
Even before the actual announcement, there was reported ranking instability on May 13 and May 14 by such platforms as Advanced Web Rankings, Semrush Sensor, SERPstat, SimilarWeb, Accuranker, and more. Many SEO forums reported huge traffic drops and big swings throughout those two days.
As with some previous updates, even before the official confirmation, digital marketers should consider these signal changes as an indication of what’s to come with the update, as opposed to a random blip before the update.
Deindexing Strikes Again
Within this same timeframe, many sites reported finding that their pages, which had been indexed previously with no issues, were now all of a sudden deindexed overnight. While Google has not officially commented on this deindexing, the wide consensus is that they are now taking their own helpful-content signals and applying them more forcefully.
Just as with previous core updates, sites with weak or AI-created content, duplicate category content, and old SEO keyword-focused pages seem to be the ones that will experience deindexing.
Gemini Announcement at Google Marketing Live 2026
Google Marketing Live, which was hosted on May 20, made it clear that Gemini was now much more than just a neat feature for Google Ads; it is now what the entire Google Ads system runs on.
AI-Powered Search Ads Are Here
During their announcement, Google highlighted that there are four new ad formats that are all powered by Gemini and built for AI Mode and search:
- Conversational Discovery Ads: With this option, your ads will directly answer a person’s search query and highlight important features or details.
- Highlighted Answers: Ads that are deemed highly relevant to a specific question will appear in answers.
- AI-Powered Shopping Ads: If someone is looking for your product, it could be pulled up and displayed, along with a write-up as to why it might be the best product for the user.
- Business Agent for Leads: An actual AI agent can take care of answering questions and capturing valuable leads.
Also mixed into the announcement was Google’s expansion of its Direct Offers pilot to have more offer types, including AI-generated briefs to reach core audiences, and travel-specific expansions.
Ask Advisor Makes Your Life Easier
This Gemini-powered assistant runs across Google Analytics, Google Ads, Merchant Center, and Google Marketing Platform, and can help digital marketers measure performance, build campaigns, check multi-channel recommendations, and automate tasks. Marketers and users will save significant time and avoid having to toggle between the four different products.
AI Max Expands
One of the biggest additions is AI Max for Shopping campaigns, which uses Merchant Center data to create shopping ads that respond to more conversational search queries. Google also introduced AI Max for Travel, bringing different travel campaign types together into a single platform to make campaign management simpler.
Google also launched a new feature called AI Brief, which lets advertisers guide AI Max using plain-language instructions. Brands can set messaging preferences like “don’t mention prices,” define matching priorities, such as focusing on searches related to healthy pantry staples, and tailor messaging for certain audiences, like highlighting clean ingredients for health-conscious shoppers.
Another update improves compliance controls. Final URL expansion can now include required text disclaimers, helping businesses in regulated industries meet legal requirements more easily.
Updates for YouTube, Demand Gen, & Asset Studio
Asset Studio also got a major upgrade with Gemini features. Advertisers can now create images, text variations, video assets, and even complete creative themes just by using simple prompts. Google also added Gemini Omni to improve video creation, along with a new 1-Click Creative Testing tool that helps teams quickly test and optimize creative assets.
Now brands can find and work with YouTube creators directly within the campaign setup process thanks to new creative partnership tools. Some other updates were Google Maps inventory, AI-assisted campaign setup, dynamic product video distribution, and expanded measurement integrations to help advertisers track performance better.
Universal Commerce Protocol (UCP) and Agent Payments Protocol (AP2)
Big upgrades came to the Universal Commerce Protocol (UCP) and Agent Payments Protocol (AP2), both systems that were released this year.
The Universal Cart now enables AI-assisted checkout across different retailers, with support for buy-now-pay-later options like Klarna and Affirm built in. UCP is also moving into new areas, including AI-driven travel booking and food ordering experiences tied to the latest consumer updates. On top of that, the same framework is being brought to Demand Gen campaigns, YouTube Shopping ads, and AI Mode experiences, creating tighter links between commerce and advertising across Google’s ecosystem.
Google Analytics 360 Brings Meridian
The open-source marketing mix model (MMM) from Google is being folded into Analytics 360. A new predictive signal called Qualified Future Conversions (QFCs), powered by Gemini, is designed to link today’s ad interactions with future revenue outcomes, giving advertisers a potential view of performance.
Together, these updates aim to address the challenge in measurement by helping to figure out true incrementality. This will be especially helpful for advertisers who have traditionally relied on separate systems like MMM and last-click attribution without a unified way to reconcile the two.
Merchant Center also picked up a set of updates aimed at improving AI visibility. New tools like AI Performance Insights and Conversational Attributes help retailers fine-tune their product feeds and descriptions so they perform better in conversational shopping experiences across Search, Gemini, and AI Mode.
ChatGPT Self-Serve Advertising Tools
Starting on May 18, ChatGPT’s self-serve ad tools have now become more widely available. OpenAI had already been testing ads since February with logged-in U.S. users on the Free and Go plans, where sponsored content appeared directly within responses. By mid-May, that rollout expanded even further, now allowing any U.S. business to sign up for an Ads Manager account, start campaigns with no minimum spend, and place ads inside ongoing AI conversations.
In the first six weeks of the pilot, advertisers saw:
- $100M+ in attributed revenue
- 0.68% average click-through rate (top brands hit 1.57%)
- OpenAI’s 2026 forecast: ~$2.5 billion
There’s also been buzz around a new OAI-AdsBot crawler showing up in server logs; spotted by SEO folks and site operators. That signals OpenAI is quietly building out more ad inventory and sharpening how it matches ads to actual conversations.
Meanwhile, Perplexity confirmed it’s shutting down its ad program by the end of 2026, worried that slapping sponsored labels on AI answers chips away at trust. Instead, it’s leaning into subscriptions and riding that $18 billion valuation rather than chasing ad revenue.
Meta Beats Google for Potential Ad Revenue in 2026
One of the biggest talking points from the May 11 week was around the global ad revenue forecast that accounted for Meta’s projected $243.46 billion versus the $239.54 billion that is projected to come from Google in net global ad revenue for 2026.
The shift is also showing up in the early 2026 actual earnings. Meta’s Q1 ad revenue climbed 33% year over year to $55 billion, while Google’s search revenue grew by 19%, which is still strong, but not at the same pace or level as Meta.
In 2025, there was a 32.6% yearly increase ( $117.7 billion) in ad spend for social media, according to the 2025 IAB Internet Advertising Revenue Report.
Search Performance for AI & Citation Numbers
Conversion for AI Traffic
While a lot of the focus remains on AI-generated answers and data gobbling up results, for users who actually click through those, their conversion rates are much higher. For that week of May 11, there was a 48% increase in AI-referred traffic for U.S. sellers, when compared to traditional organic traffic. 40% of all shoppers stated that they used an AI program like Gemini or ChatGPT during their purchasing process.
The general consensus is that, compared to traditional search, AI search weeds out more window shoppers, and after going through costs, comparisons, etc., they are much further along in the buyer funnel.
Who & What Is Being Cited
During the same time, new light was being shed on what sites AI engines were actually citing. Of all of the AI searches, the three highest cited domains were LinkedIn, YouTube, and Reddit. It has been reported that ChatGPT is citing approximately 20% less than its previous version, with Perplexity being the fastest of the major AI platforms to cite new information.
AI search engines can still be influenced by fake or made-up brand entities, especially when there are weaknesses in how citations and sources are verified. This highlights that appearing in AI-generated answers is not always a reliable sign of credibility, and sites and brands can’t depend on AI search to consistently distinguish them from imitators without ongoing oversight.
Greater Insights into AI Citations
May also saw Microsoft Clarity expand its AI Visibility capabilities, allowing webmasters to see which of their content AI is citing, and how frequently. Separately, OAI-AdsBot has started showing up in server logs, suggesting that AI tracking tools are becoming significantly more advanced.
All of this means that visibility in AI answers is no longer a guessing game. It’s something that can be measured.
The revenue case is also becoming clearer. For example, Visibility Labs’ report, published on May 18, highlighted a 344% increase in AI-referred revenue after optimizing its content for AI.
Ten Busy Days for Social Media Updates
Instagram Debuts Instants
On May 13, 2026, Instagram launched Instants as a standalone Android/iOS app, as well as an in-app feature. Thought to be a direct response to Snapchat’s continued success among Gen Z, Instants allows for photo-sharing between Close Friends and Mutuals. Images can be viewed once and disappear after 24 hours.
Also during this period, Instagram released a teleprompter for Reels, the option to schedule trial reels, and comment editing, and a voiceover feature for Stories that is still being developed.
Other significant algorithm changes include de-prioritizing accounts that repost other people’s content, while lifting the original creators. Instagram also confirmed what’s been debated for years: likes are key to building relationships with your existing audience, and shares are key to reaching new people.
X, Threads, and LinkedIn Updates
Also in May, X introduced XChat, a dedicated messaging app for iOS that separates DMs from the main platform experience. Threads, in turn, started testing Live Chats, a broadcast-style messaging tool that lets subscribers tune into discussions between selected participants in real-time. It also added direct messaging functionality to desktop.
LinkedIn released CrossCheck, a content verification tool, and reported strong growth. The company saw 12% in revenue growth year over year in the first quarter of 2026, with paid ads up 30% for the previous quarter. Document carousels continue to lead the way in average engagement.
On features that have been removed: LinkedIn has done away with spontaneous livestreams; these now need to be scheduled.
TikTok Introduces Campus Hub and Expands Keyword Filtering
Since the end of April 2026, TikTok has launched a number of user- and creator-focused features. These include Campus Hub, helping U.S. college students discover local campus communities. The team also expanded keyword filtering options, giving brands greater control over how their videos are discovered.
Around the same time, TikTok strengthened its HubSpot collaboration for ad management and started developing TV programming internally. The latter signals a shift toward premium, long-form content.
YouTube Rolls Out AI Search and Channel-Style Format
New to YouTube is Ask YouTube, an AI-powered tool that lets viewers ask questions about videos in a conversational way. Another key launch is Stations, a channel-type release, starting with Coachella TV, that is designed to compete with traditional television. On the creator front, in a move to boost engagement, YouTube has also given creators the option to bulk-like comments.
Reddit’s Rise as a Mainstream Search Platform
Reddit has seen tremendous growth as a primary search platform, with a 30% annual increase in the number of people using it as their go-to. By Q4 of 2025, the platform boasted 109 million unique users, and annual ad revenue reached $1.5 billion. Today, the platform’s AI-powered search tool, Reddit Answers, processes around 28 million queries daily.
Major Martech Acquisition
This period also marked a significant period in martech consolidations and AI-driven product expansions.
- Publicis Groupe acquired LiveRamp for $2.2 billion to create more advanced AI agents.
- Cadent integrated with Gemini Enterprise, boosting campaign speed and ROAS.
- ioMoVo was launched as an AI-powered platform for enterprise-level content workflows.
- Sigma raised $80 million (Series E).
- SmarterX reported that most surveyed business leaders anticipate that AI will reduce overall employment opportunities rather than expand them.
A Step-by-Step Guide for Marketers until June
Conduct Thorough Content Audits Against Pertinent Updates
If you saw considerable swings between May 13 and 14 or after May 21, don’t rush to make big changes. Best practices suggest waiting at least a week after Google’s core updates to review and compare data on Google Search Console.
In the interim, allocate resources toward finding pages with limited or duplicate information and those with little unique value. You should also flag outdated content.
Move Toward Agentic Campaign Management
More and more, campaigns are being structured around agentic workflows. Performance Max, AI Max, and similar formats all tend to favor high-quality structured data rather than manual keyword control. We’re seeing the same with OpenAI, where conversational, answer-based language tends to perform better than banner-like copy.
Widen Your Approach to Distribution
Data obtained between 11 and 20 May illustrate the importance of a dual model, with one pillar that focuses on organic and paid search, and another focused on AI visibility. The first of those is being shaped by Google’s core updates, and the second is fostered by AI-optimized content, as well as Reddit and YouTube presence. Together, these provide some measure of resilience against ongoing shifts in search.
Frequently Asked Questions
When was Google’s May 2026 core update?
According to the Search Status Dashboard and official Google Search Central account on X, the update began on May 21. However, volatility was seen as early as May 13 and 14, suggesting earlier shifts.
What is Google Ads’ Ask Advisor?
Introduced on May 20, 2026, Ask Advisor is a Gemini-powered assistant that unifies Google Ads, Google Analytics, Merchant Center, and Marketing Platform. Together, these are used for campaign building, analysis, and optimization.
How does ChatGPT’s self-serve advertising system work?
It allows U.S. businesses to run contextual ads directly inside ChatGPT conversations. Only logged-in adult users on the Free and Go plans see these ads. Preliminary information shows that it increases CTR by an average of 0.68%, although top performers have seen a 1.57% increase.
Is Meta expected to exceed Google’s ad revenue?
Yes, Meta is likely to surpass Google’s 2026 ad revenue for the first time in history. Projections put them at $243.46 billion and $239.54 billion, respectively. Meta’s growth is primarily being led by Reels monetization, automated ad systems, and increased use of first-party information.
What does Universal Commerce Protocol do?
Developed by Google, Universal Commerce Protocol (UCP) is an agentic e-commerce framework that helps AI agents find and purchase products from various retailers. It’s designed to function alongside Agent Payments Protocol (AP2) and Universal Cart. UCP has since been expanded to include deeper shopping integrations.
Is Instants a standalone app by Instagram?
Yes, there’s a separate app for Android and iOS, but the feature also exists within Instagram.
What is Reddit Answers?
Reddit Answers is an AI-led search feature that has helped Reddit grow as a primary search engine. The tool processes around 28 million queries daily.
What should I do if my website traffic dropped after Google’s core update in May?
Best practices outlined by Google suggest waiting a minimum of one week before you review your Search Console data. When you do, you should compare website performance to the weeks preceding May 21, not the actual rollout period, which could skew results. While you wait, flag thin, duplicate, and outdated content, and that with limited unique value.
What is Generative Engine Optimization (GEO)?
Generative Engine Optimization (GEO) refers to the process of optimizing content so it’s more likely to be detected and cited by AI-powered platforms, such as Google’s AI Overviews and ChatGPT.
Did Perplexity introduce ads in May 2026?
No. Perplexity announced that it plans to phase out ads by the end of 2026 due to concerns that sponsored content undermines trust in AI-generated answers. Instead, it’s prioritizing subscription-based revenue: a stark contrast to OpenAI’s focus.
What is Google’s AI Max for Shopping?
Google’s AI Max for Shopping is an AI-powered enhancement for Shopping campaigns. It uses Merchant Center data to improve targeting and ad delivery for conversational and long-tail keywords, which are often missed by standard Shopping campaigns.
What is the OAI-AdsBot?
It’s a newly detected web crawler by OpenAI that’s been detected in server logs during this period. It seems to support ad-related context gathering for ChatGPT, joining other known bots that are used for indexing.
Why is Instagram reducing the reach of aggregator accounts?
Instagram is limiting the distribution of aggregator accounts, which mainly repost others’ original content. Instead, Instagram is boosting original creators, prioritizing authentic content that typically boosts engagement.
Is it worth publishing blog content if AI Overviews summarize everything?
Yes, but it’s become increasingly important to structure content well and ensure that the information is easy to interpret. Content that is clear and well-organized is more likely to be cited by AI, which remains a source of valuable traffic.
What the May 11–20 Changes Mean for Marketers
Data from May 11–20 confirms how visibility and traffic are being distributed across digital channels. Marketing performance now shows a clear split between traditional organic and paid media and AI-driven discovery, both of which are increasingly required to maintain resilience against ongoing volatility in search and social media ecosystems. Marketing teams that continue to lead will continue to adapt to algorithm changes and emerging AI discovery channels.
