The Impact Of AI Overviews On SEO [Analysis Of 19 Studies]

Preserving tempo with AI is exhausting and overwhelming – and so vital.

To quench my very own curiosity and make life simpler for you, I’ve spent hours studying 19 authentic analyses of AI Overviews (AIOs). I’ve summarized them and synthesized the insights into 5 key questions:

1. How usually does Google present AI Overviews?
2. What triggers AI Overviews?
3. How do AI Overviews impression click-through charges and search engine optimization visitors?
4. How will you rank in AI Overviews?
5. How do you have to rethink content material creation for AI Overviews?

This information is ideal for you should you:

• Need to get a complete overview of AI Overviews.
• Are bored with maintaining with AI information and need a single supply of crucial data.
• Search a comparability of the outcomes from AI Overview research.

My objective is to supply a “meta-analysis”: In (medical) analysis, a meta-analysis is a statistical methodology the place researchers mix information from a number of unbiased research on the identical subject to supply a single, extra sturdy conclusion in regards to the general impact, offering a extra complete image than any particular person research alone might supply.

Primarily, it’s a “research of research” that analyzes and summarizes outcomes from numerous analysis papers to determine developments and patterns throughout the info.

I at all times preach that “we want extra information” to type stronger convictions. Now, we’ve extra. Let’s type.

The Research

Picture Credit score: Kevin Indig

Get the spreadsheet with pattern sizes and publish dates: Sheet.

1. Google AIO Affect – search engine optimization & PPC CTRs in any respect time low
2. AI Overviews: What Are They & How Do They Have an effect on search engine optimization?
3. AI Overviews Research: Inside Google’s New Search Actuality
4. I Analyzed 300K Key phrases. Right here’s What I Discovered About AI Overviews
5. We Studied 200,000 AI Overviews: Right here’s What We Discovered
6. Google AI Overviews Research: 25+ Statistics from 405,576 searches
7. Search Intent and AI Overviews: Research Insights
8. AI on Innovation – Half 2
9. AI Overviews Analysis: Google Advertisements within the AIO-inclusive SERPs
10. AI on Innovation – Half 1
11. How Google AI Overview impacts 20 industries
12. Publishers report ‘negligible’ visitors impression of Google AI Overviews
13. Affect of Google’s AI Overviews: search engine optimization Analysis Research
14. AI Overview Research for 8,000 Key phrases in Google Search
15. The Site visitors Affect of AI Overviews
16. AI Overviews search engine optimization Affect Report [New Data]
17. ‘Devastating’ potential impression of Google AI Overviews on writer visibility revealed
18. AI Overview Traits: Insights from 5,000 HR and Workforce Administration Key phrases for SaaS
19. AI vs. search engine optimization: What does the Way forward for Search appear like?

How Typically Does Google Present AI Overviews?

Picture Credit score: Kevin Indig

The largest query, after all, is, “How a lot does this matter”? To my shock, the AIO-pocalypse has not but occurred. At the least not in line with the info.

What number of key phrases present AIOs within the respective research:

• Press Gazette, 05/24: 23.7% out of three,300 information key phrases (US). [17]
• Development Memo, 05/24: 42% of 546,000 queries. [15]
• AWR, 07/24: 12.4% of 8,000 key phrases. [14]
• SE Rating, 08/24: 12.47% of 100,000 key phrases. [9]
• Botify, 08/24: 47% of 120,000 key phrases. [3]
• DotDash Meredith, 08/24: 15% “of searches throughout our classes.”
• Ziff Davis, 08/24: “8% of most vital queries”. [12]
• Wealthy Sanger / Authoritas, 09/24: 21.1% of 11,000 key phrases. [7]
• seoClarity, 12/24: 4.5% of 120 million key phrases. [13]
• Semrush, 01/25: 6.7% throughout hundreds of thousands of key phrases. [5]

Supply

The protection varies very a lot by trade.

Business Distribution

Supply

Press Gazette, 05/24: [17]

• Horoscopes: 62%
• Well being: 55%
• Geo areas: 47%
• Purchasing: 43%
• Media & Tech: 36%

AWR, 08/24: [14]

• Well being: 67.5%
• Security: 46.1%
• Know-how: 23%
• search engine optimization: 17%
• Finance: 17%

Zapier, 08/24: [11]

• Relationships: 40.6%
• Meals & Beverage: 23.6%
• Enterprise: 18.5%
• Know-how: 17.2%
• Wellness: 15.6%

SE Rating, 08/24: [9]

• Relationships: 46.1%
• Meals & Beverage: 33.5%
• Enterprise: 23.4%

DotDash Meredith, 08/24: [12]

• Well being
• Know-how
• Finance

Semrush, 01/25: [5]

• Well being: 23.0%
• Science: 20.1%
• Web & Telecom: 11.7%
• Journey: 10.0%
• Computer systems & Electronics: 8.75%

Implications:

1. AI Overviews got here sizzling out of the beta gate on Could 14, 2024. Since then, we’re seeing fewer key phrases exhibiting AI Overviews – no more. That’s counterintuitive to me. And a bit counter to my private expertise when utilizing Search. However that’s the info.
2. The most recent research share numbers between 4.5 and 6.7% in comparison with early research that discovered 12.5 – 42%. Evidently the TsunAImi I used to be anxious about hasn’t materialized itself but, and there are nonetheless loads of non-AIO key phrases left that may ship significant natural visitors. Nonetheless, I ponder how properly we actually observe the longtail key phrases that present AIOs (extra in a second).
3. It’s additionally noteworthy that Semrush [3] discovered vital variations between cell and desktop AI Overviews: Probably the most populated industries on the desktop are well being, folks and society, and science, whereas cell reveals most AIOs for folks and society, science, and meals & drink.
4. YMYL industries like well being present probably the most AIOs. And I simply don’t perceive why. If I have been Google and launched LLM solutions which might be liable to hallucination, I’d begin in an area the place it’s much less consequential, like folks and society or leisure. To be truthful, some research present that Google invests in these “light-weight” verticals. However well being comes up most constantly on the high. I assume that Google has quite a lot of medical research that it makes use of to floor health-related AI Overviews.

What Triggers AI Overviews?

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The widespread principle is that AIOs disrupt predominantly informational searches, and the info backs that up.

Search intent is vital as a result of, theoretically, even a low share of key phrases exhibiting AI Overviews might have a big effect if these key phrases are vital for enterprise and affect buy choices.

Picture Credit score: Kevin Indig

Each research I checked out confirmed that almost all of AI Overviews present up for informational-intent key phrases like questions:

• Movement, 06/24: 24% of AIOs present up for top-of-the-funnel and 5% for bottom-of-the-funnel key phrases. [18]
• AWR, 07/24: 34.7% of queries exhibiting an AOI embrace the query phrase “how.” 21.3% of AIOs present up for informational key phrases, in comparison with 4% for industrial/transactional. [14]
• Botify, 08/24: 59% of informational key phrases set off an AIO, in comparison with 19% of business key phrases. [3]
• Wealthy Sanger / Authoritas, 09/24: 28.8% of key phrases exhibiting an AIO are informational in comparison with 11.1% industrial/transactional. [7]
• Ahrefs, 10/24: 99.2% of knowledge key phrases set off an AIO in comparison with 10% of business/transactional key phrases. [4]
• seoClarity, 12/24: 92.9% of key phrases exhibiting an AIO have informational intent. [13]
• Semrush, 01/25: 80% of desktop and 76% of cell AIOs focused informational key phrases. 35% of desktop and 32% of cell key phrases have been questions. Transactional key phrases confirmed AIOs solely 3% of the time. [5]
• Seer, 02/25: 31.6% of key phrases exhibiting an AIO are questions in comparison with 9.7% with out an AIO. [1]

Person intent is tightly related to question size. The longer, the better it’s to gauge what a searcher needs. And the decrease the search quantity.

Longtail Vs. Shorthead

Longer queries usually tend to set off AIOs:

• AWR, 07/24: Queries with 5 phrases (long-tail) set off AIOs 22.6% of the time in comparison with one with 0.9% and 10-word queries with 0.2%.
• Botify, 08/24: 73.6% of long-tail queries (+5 phrases) set off an AIO, in comparison with 8.9% for short-head queries. Additionally, 55% of queries
• Ahrefs, 10/24: Lengthy-tail key phrases usually tend to set off AIOs than shorthead key phrases. Search quantity for key phrases exhibiting AIOs is 193x smaller than for key phrases not exhibiting AIOs. [4]
• Semrush, 01/25: 82% of desktop and 76% of cell AIOs occurred for key phrases with lower than 1,000 month-to-month searches. [5]
• Seer, 02/‘25: The common question size resulting in an AI Overview was 4.29 phrases in comparison with 3.48 phrases for a question not presenting an AIO. [1]

Possibly not a set off, however a powerful co-occurrence exists between AIOs and SERP Options.

Featured Snippets

Featured Snippets and AI Overviews have a tendency to indicate up collectively:

• AWR, 07/24: AI Overviews seem alongside Featured Snippets in 59.5% of key phrases. [14]
• Botify, 08/24: Featured Snippets and AIOs co-occur 60% of the time and canopy 67-76% of your display screen, relying on the system. [3]
• Ahrefs, 10/24: Featured Snippets seem for 65.5% of key phrases exhibiting an AIO. Google is far much less prone to present Information Panels and movies when AIOs are current, in all probability as a result of the Information Graph is the inspiration for AIO era. [4]

Paid Search Outcomes

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Google appears to shrink back from exhibiting PPC advertisements when AIOs are current:

• SE Rating, 08/24: 13.5% of AIOs present up subsequent to advertisements on desktop. [9]
• Semrush, 01/25: 5% of key phrases exhibiting AIOs additionally confirmed PPC advertisements. [5]
• Seer, 02/25: Paid Search CTRs dropped throughout the board – with or with out an AIO, however they have been decrease comparatively when Google reveals AIOs. [1]

Implications:

1. If there’s search engine optimization visitors to be misplaced (attending to that shortly), it’s principally for informational searches, as we will additionally see the truth that Featured Snippets have a tendency to indicate up with AIOs. Industrial and transactional key phrases don’t present a excessive price of AI Overviews, possibly as a result of that’s the place advertisements present up probably the most, and Google doesn’t wish to kill its click-through charges.
2. Then again, Google’s Information Graph does usually present up with AIOs. Why? Almost definitely as a result of the Information Graph is the inspiration for Google’s AIOs and doesn’t present internet worth within the search outcomes. In consequence, it is best to test whether or not your model has a information graph and what entities Google associates it with. It might impression how it is best to up in AIOs.¹
3. AI Overviews usually tend to present up for longer queries with decrease search quantity. Is smart as AIOs reply lengthy questions so significantly better than basic search outcomes (Google by no means actually figured longtail get your hands on), and longer queries are searched by fewer folks as a result of they’re extra particular.

How Do AI Overviews Affect Click on-By way of Charges And search engine optimization Site visitors?

We all know that AIOs may not present up as usually now as they did contemporary out of the egg. They happen for informational longtail queries with decrease search quantity. However after they present up, what’s their impression?

Supply

AIOs push natural outcomes down considerably:

• Press Gazette, 05/24: On common, natural search outcomes dropped by -980 pixels when AIOs have been current. Within the buying vertical, the typical was 1,205! Needless to say the info was gathered simply when AI Overviews first rolled out. Issues might and sure do look very completely different now. [17]
• AWR, 07/24: The common AIO is 912 pixels lengthy. [14]
• Botify, 08/24: AI Overviews take up 42% of the display screen on desktop and 48% on cell. [3]
• Wealthy Sanger / Authoritas, 09/24: AI Overviews push natural outcomes down by a median of 202 pixels. [7]
• The truth that AI Overviews occupy a lot display screen actual property alone hurts the CTR for natural outcomes.

Natural Click on-By way of Charges

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AIOs shrink CTRs and search engine optimization visitors. Some industries that focus on high-intent key phrases report a smaller impression than others:

• Development Memo, 05/24: A adverse impression of -8.9% on click-through charges on common. [15]
• Siege Media, 05/24: 3% enhance in CTR after AIOs went reside. [16]
• DotDash Meredith, 08/24: minimal variations in CTR between search outcomes with and with out AI Overviews. [12]
• Sistrix, 11/24: Outstanding citations in AI Overviews result in extra clicks than Featured Snippets, however nonetheless a lot much less in comparison with basic natural outcomes. [19]
• Seer, 02/25: AIOs reduce natural CTRs in lower than half and have a tendency to indicate up for queries that already received fewer clicks earlier than (zero-click searches). When cited, websites get extra visitors, and common CTR grows from 0.74% to 1.02%. [1]

Being cited issues, however how a lot room is there to win in citations?

Quantity Of Citations

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Since we all know being cited in AIOs issues for natural visitors, the subsequent query is how a lot “actual property” there’s, and the reply appears to be 5-8:

• AWR, 07/24: AI Overviews include 7.2 citations on common. [14]
• Wealthy Sanger / Authoritas, 09/24: The common variety of citations is 8.2, with small variations throughout consumer intent. [7]
• Surfer, 10/24: Google cites eight or fewer sources 90% of the time, with 5 on common. 99% of sources are solely cited as soon as. [6]

Implications:

1. AIOs have a adverse impression on CTRs. Instinct validated. “Rating in AIOs,” a.ok.a. being cited, must be the brand new objective in search engine optimization after they’re proven within the SERPs.
2. The information validates that informational searches are dwindling in search engine optimization worth. So, theoretically, we should always see much more firms shedding natural visitors, although not essentially income from natural visitors. However that doesn’t appear to be the case, at the least to not the depth I anticipated. A potential cause may very well be that natural CTRs have been already low for queries that present AI Overviews, because the Seer research reveals. Possibly the adverse impression of AIOs is a continuation of a development that has already existed for years, which is Google answering extra questions within the SERPs.
3. What’s nonetheless unclear is that if and when searchers click on on natural outcomes under AI Overviews and citations. I assume that consumer intent can be the deciding issue right here, however we want extra information.

How Can You Rank In AI Overviews?

Once we speak about “rating in AIOs,” we imply being cited. There’s much more to be found about how Google decides what pages to quote.

Primarily based on patents, evidently Gemini first creates the reply to a query after which seeks sources that may very well be a great match, although I’m unsure why it doesn’t merely floor the reply within the high outcomes.

Primarily based on the info to date, we will agree on the next quotation components:

It’s Not Key phrase Match

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The variety of AIOs citing the precise key phrase is extraordinarily low:

• Botify, 08/24: Textual content (Cosine) similarity between the AIO and cited pages reveals a powerful relationship, which means the nearer your textual content matches what’s proven within the AIOs, the upper your possibilities to be cited. [3]
• Surfer, 10/24: Solely 5.4% of AI Overviews include the precise search question. [6]

However your place issues as properly.

Natural Rating Place Issues Considerably

Picture Credit score: Kevin Indig

Rating increased is best however not a requirement to get visitors from AIOs:

• AWR, 07/24: 33.4% of AIOs cite pages that rank within the high 10 positions. [14]
• Botify, 08/24: 75% of cited web sites rank within the high 12 positions, however the median rank is 4. [3]
• Development Memo, 09/24: 40% of AIO sources rank in positions 11-20 and solely 22% in positions 1-3. [8]
• Wealthy Sanger / Authoritas, 09/24: The highest two positions are included in citations 47.8 – 53.8% of the time. [7]
• Surfer, 10/24: 52% of cited sources rank within the high 10 outcomes. [6]
• seoClarity, 12/24: AIOs cited the highest 10 positions 99.5% of the time, and 80% of AIOs cite a web page that ranks within the high 3 natural positions. [13]
• Semrush, 01/25: The overlap between AIO citations and natural search outcomes is just 20-26%. Over 50% of AI Overviews on desktop and 60% on cell didn’t hyperlink to the highest natural outcome. [5]

Implications:

• Immediately, AI Overviews cite extra pages within the high 10 rating positions than after they initially launched.
• One of the best factor you are able to do to focus on AIOs is to run a Cosine similarity evaluation between your textual content and the AIO. Decide the web page that ranks finest for the goal key phrase and test which components of the AIO it might give the perfect reply to.
• In fact, sturdy technical fundamentals and good on-page search engine optimization matter, however extra to have a excessive rating place and enhance your possibilities to be picked as a quotation moderately than as a tough criterion AIOs consider.

How Ought to You Rethink Content material Creation For AI Overviews?

Optimizing for AIO citations and mentions isn’t a 180-degree flip in comparison with basic natural outcomes, however you need to bear in mind the appropriate format and the place you publish the content material.

AIO Size

The common AI Overview is round 90-170 characters:

• AWR, 07/24: The common AIO is 169 phrases lengthy. [14]
• Botify, 08/24: The common AI Overview is 169 phrases and 912 pixels lengthy. [3]
• Surfer, 10/24: AI Overviews are, on common, 157 phrases lengthy, with 99% being shorter than 328. Featured Snippets common ~50 phrases. [6]
• Semrush, 01/25: 90 (cell) to 119 phrases (desktop). [5]

AIO Format

Most AIOs include lists:

• AWR, 07/24: 40% of AIOs are lists, 24% are paragraphs, and only some have photos. [14]
• Surfer, 10/24: 61% of AI Overviews are unordered lists, 21% include no record, 12% are ordered lists, and 6% are ordered and unordered lists. [6]

Prominently Cited Domains

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Youtube stands proud because the area with probably the most citations:

• Wealthy Sanger / Authoritas, 09/24: YouTube and Wikipedia are cited most frequently in AIOs for data intent key phrases. [7]
• Development Memo, 09/24: Probably the most cited domains are YouTube, Wikipedia, and Google, which frequently rank in decrease positions. [10]

Implications:

1. 90-170 characters equal roughly 15-40 phrases on common – not quite a bit! So optimizing your content material for AIOs actually appears to be about easy solutions, no fluff, and a excessive diploma of perception. Much like optimizing for Featured Snippets, it appears AIO optimization is about tweaking small components of an article again and again till you get the quotation.
2. The outsized impression of YouTube on AIOs pushes content material era additional away from web sites. I additionally discovered that LinkedIn is cited quite a bit in my analysis. So, social and content material platforms may very well be a part of trendy search engine optimization. On the very least, run exams on YouTube and LinkedIn.

Backside Line

As a group, we’ve made vital progress in understanding AI Overviews and their impression.

Though it’s a shifting goal, we will conclude for now that AIOs occupy informational, long-tail queries with low search quantity and negatively impression click-through charges until you’re a part of the citations.

I hope to put in writing a follow-up meta-analysis with new research in a few 12 months and be capable to reply questions like:

1. How usually do AI Overviews change?
2. How does Google resolve which merchandise to record in ecommerce AIOs?
3. What are websites doing at scale to get extra AIO citations over time?
4. What new AIO codecs is Google testing, and the way are they completely different?
5. How do AIOs fluctuate between international locations for a similar question?

Keep tuned for subsequent week after I publish my meta-analysis of AI Chatbots like ChatGPT or Perplexity and their impression on Search.

I additionally plan to publish at the least three extra authentic information research about AI Overviews this 12 months. Subscribe to remain updated!

¹ AI Overviews and your web site

Featured Picture: Paulo Bobita/Search Engine Journal