The Great Filter: How Google’s AI Overviews Changed GTM

A ‘zero click’ future means trouble for your inbound pipeline.

We talked some time ago about Google’s then-termed Search Generative Experience – now more commonly called AI Overviews. At the early stages of testing, agencies and data folks were finding a big shift in the amount of content (reviews, comparison searches, how-to guides) that Google was presenting directly to searchers in native Google results, alleviating them of the pesky need to click on to your site.

Well, the fix is in, the eagle has landed… and it ain’t pretty. Organic traffic to websites has declined by as much as 91% in some cases.

Instead of that nice and predictable funnel you had – where x number of your search impressions turned into y number of website visitors who filled your lead form at x rate – we’re now faced with the reality of Google’s Great Filter: effectively keeping people on Google.com instead of sending them to you and your owned marketing funnel.

The Problem: Your Organic Funnel Just Broke

Google’s AI Overviews launched in beta in the US and then rolled out globally. At the time of writing this article, somewhere between 30% to 50% of all searches prompt Google to answer to with AI. Certain query types (notably: Health) return AI answers up to 70% of the time.

The mechanism is simple enough: when you search for something, e.g. “best project management software” or “how to calculate CAC”, Google’s LLM generates a direct answer right there on the search results page. It’s clean. It’s fast. It answers your question in seconds. It also, critically, sucks users into the native chat experience directly with Gemini on interaction, where follow-up questions, vendor comparison, strengths and weaknesses etc are presented by Google on your behalf. Search results and clickable website links disappear entirely unless the user actively clicks away from the AI Answer window.

The problem is thus: your customers never leave Google.

In the old model circa 2010-2020, Google made most of their money by getting a user to click-through (you’d see ads on their results page, then ads on the destination site). Now? Google makes more money by keeping users on their page, where they control the ad inventory. Questions get answered, Google keeps the user engagement, your website sees the traffic dry up.

The data is stark. DMG Group (publisher of The Daily Mail Online and various other news-based sites) reported to the UK’s Competition Markets Authority that click-through rates dropped by as much as 89% when AI Overviews appeared for their content.

It’s not universal, however, since transactional queries when someone’s ready to buy held up better than informational ones. But if your customer acquisition relied on organic search for awareness and consideration – which, if you’re honest, it probably did – you just watched a significant chunk of your funnel disappear. What we are seeing is a foundational change in how people discover their options, consider products, and engage with your brand.

Why Google Did This, And Why You Should’ve Seen It Coming

Let’s talk incentives, because incentives explain everything.

Google’s core business is advertising. The company makes money by showing users ads, and the more engaged you are with Google properties, the more ad inventory they can sell, and the higher they can price it. Internal Google discussions that became public during a DOJ anti-trust investigation showed the Google Search and Ads teams discussing various ways to drive Ad Revenue and User Numbers by keeping users on google.com. Gemini’s integrations into the core Google Search experience seem to be an practical application of this goal.

When users clicked through to external sites, Google lost that engagement and revenue. But if Google answers your question directly? You stay on Google. You see their ads. Their AI generated the answer from content across the web, so they get the value without giving you the click. It’s a good, albeit absolutely self-serving, business move.

For publishers and SaaS companies that convert attention from organic search it’s a brutal shift.

The mechanism compounds the problem. AI Overviews do include citations at the bottom (“Source: X,” “Learn more on Y”) but citations aren’t clicks. Studies show that citation click-through rates are infinitesimal. Most people see the answer, get what they need, and move on. The tiny percentage who click through won’t materially move your acquisition needle.

To make the issue super clear: your customer acquisition model depended on impressions converting to clicks. Now impressions just stay with Google.

The GTM Implications: Funnel Collapsed, CAC Exploded

For years, organic search was the top-of-funnel workhorse, where an increase in organic search strongly correlated with an increase in inbound leads from high-intent users. Yes, branded search brought high-intent traffic, but organic keywords like the comparison content, the “best of” reviews, the how-to guides, the thought leadership pieces, built awareness.

They got people into your funnel and primed them before sales ever touched them.

Your funnel looked like this:

• Search impression (you rank for “best CRM for small teams”)
• Click-through (user visits your site)
• Engagement (user reads, learns, considers)
• Conversion (user fills form, books call, becomes sales lead)
  

Now it looks more like this:

• Search impression (Google’s AI answers the question)
• No click (user has their answer)
• No engagement (they never see your content)
• No lead (they never enter your funnel)\
• ???
• They come back to you somehow (?)
  

For companies that built growth primarily on organic visibility, this necessitates a reset.

Ultimately, the downstream effect is that customer acquisition cost has gone up. If organic traffic represented 40% of your qualified leads and cost you almost nothing, and now it represents 5%, you’ve got to replace that volume somewhere. Those keywords you spent years fighting for are still ranking, and might even get scraped cited in the AI Answer. So… paid search? LinkedIn ads? Sales development?

All of that costs significantly more and is a deeper and more nuanced system from which to extract customer revenue. See, for example, Google changing this very week what a ‘Target CPA’ on your lead generation campaigns actually means (spoiler: it costs more).

Every month you continue optimizing for the same keywords is a month you’re not addressing the new reality.

What Still Works (And What Doesn’t)

Not all organic search died, but a lot of it did. Let’s break down the levers that still have potential:

Branded search is still fine. When someone types “Slack” or “your company name,” they want your product and so likely want to get to your site. Google’s AI Overviews won’t entirely replace that, and so branded search traffic remains relatively intact.

Direct traffic still works. Bookmarks, email links, referrals, word of mouth all bypass Google entirely. If you’ve built a strong brand and a good email list, these channels still drive qualified traffic and potential buyers.

Paid search still works, but it’s expensive. Google Ads can deliver, as can Meta platforms depending on your product. But you’re paying per click, and competition is fiercer. This works if your payback period can handle it, which it can for many SaaS companies. But it’s not the low-CAC dream that organic used to be.

Owned channels are non-negotiable. Email lists, communities, newsletters, Slack communities – all these are channels Google doesn’t control. Traffic here isn’t declining and companies that invested in email when Newsletters seemed quaint and outdated are suddenly grateful.

Vertical platforms are gaining traction. LinkedIn, Reddit, industry-specific communities, Discord servers. People are turning to these for advice and discovery instead of Google. The information’s still there, but it’s not flowing through the Great Filter.

The Path Forward: Diversify Before You Regret It

Here’s what you need to understand: this isn’t an SEO problem that’s fixable with better keywords or smarter content optimization. This is a GTM reset. Your customer acquisition model needs to change. Fundamentally.
That means embracing four principles.

Principle 1: Diversify your acquisition channels. Stop relying on Google. Build in paid search, community engagement, partnerships, direct sales, product-led growth. Each should represent 15-30% of your funnel, not 0%. Concentration risk is a slow death for many companies, so don’t let it kill yours.

Principle 2: Own your audience. Email remains the most direct channel between you and your customers. Build your list aggressively. Invest in a newsletter. Create community spaces – Discord, Slack, forums – where your target audience congregates. When you own the relationship, Google’s algorithm changes don’t matter.

Principle 3: Go direct to intent, not awareness. The easy days of building awareness through organic search are over. That means your sales team matters more now. Outbound prospecting, partnerships, strategic account planning – these fill the gap that organic used to. Active and intentional sales effort needs to be your primary acquisition engine.

Principle 4: Invest in channels Google doesn’t control. LinkedIn is valuable. Reddit is valuable. Industry platforms are valuable. Partnerships are valuable. All of these used to be optional “nice to have(s)” if your marketing team cared enough. They are not optional anymore.

The Bigger Picture: This Is a GTM Reset

Companies that treat this as a GTM reset will diversify. They’ll invest in email, community, partnerships, and sales. They’ll build owned channels. They’ll reduce concentration risk. In 18-24 months, they’ll have a more resilient acquisition model than they did before.

Companies that treat this as an SEO problem by tweaking keywords, trying to game AI Overviews, or waiting for Google to change the algorithm back will be stuck. Your organic traffic will continue to decline, that’s unavoidable and so your CAC will continue to rise. By the time slow companies realize the problem is structural, not tactical, they’ll be playing catch-up.

So, while the future of Google is “zero click”, for effective B2B the future is owned channels and direct relationships. Email, community, partnerships, and sales. These were always important and were the growth engines of the most forward-thinking companies like Clay… but now they’re essential.

If you’re rebuilding your customer acquisition strategy in response to this shift, you’re not alone. A lot of growth leaders are rethinking their GTM models right now. If you’d like to talk through how to diversify your acquisition and build repeatable, owned channels, let’s connect.