Ep 534: Google’s 90% “New Customer” Illusion: How To See What Your Ads Are Really Doing | AKNF

15 Aug 2025 · 24 min · 11 chapters

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In short

Google Ads’ built-in “new customer” labeling is often inaccurate (they claim ~90% of conversions are misclassified as net new). The episode argues DTC brands should optimize Google toward true net-new acquisition, not all purchases, using better server-side tracking and conversion goals aligned to business incrementality.

Guests

Eric (host) and Douglas/Dougie (guest; Google lead for Pilot House; works with DTC/CPG lead-gen and paid search optimization). They reference Elevar and compare to tools like Triple Whale.

Key claims

Cookie-based “new vs returning” via Customer Match is unreliable; GA4/Google attribution struggles without server-side data. Feeding Google qualified, lower-funnel quality signals improves outcomes and prevents “downward spirals” from bad inputs to automated bidding.

Notable examples

Lead-gen clients seeing low CPLs but poor lead quality; then feeding qualified touchpoint data back. CPG/apparel brands with high repeat rates should value net-new customers more than returning. They recommend auditing by implementing server-side tracking (e.g., Elevar) and then deciding whether to pivot conversion goals.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

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Introduction: Google Ads Issues

0:00 to 0:45

Discussing inaccuracies in Google Ads customer identification.

“The native build in Google Ads we've found to be fraught with errors and inaccuracy.”

Understanding Customer Segmentation

0:45 to 2:44

The importance of differentiating between new and returning customers.

“I'm Eric here with pilot host, Google lead Dougie.”

Analyzing Conversion Tracking

2:44 to 6:49

How to improve conversion tracking accuracy using server-side tools.

“Is this because cookie data is only lasting a certain amount?”

Aligning Goals with Conversion Actions

6:49 to 10:01

Strategies for aligning marketing goals with actual conversion actions.

“And like all this algorithmic bidding is automated.”

Evaluating Customer Lifetime Value (LTV)

10:01 to 12:01

Discussion on the importance of LTV and how it influences marketing efforts.

“It might be valuable to get a returning purchase, but we have a different level of value assigned to that compared to a net new.”

Google Lookalike Audiences and LTV

12:01 to 14:00

Exploration of how lookalike audiences work in Google Ads and their relation to LTV.

“they were used, you know, this enhanced, if they used an enhanced data set versus maybe what the platform says it can do?”

Understanding Customer Lifetime Value (LTV)

14:00 to 15:34

Learn how to account for LTV in advertising strategies to improve customer acquisition.

“leading to a bad output, which results in either no conversions or poor quality traffic or what have you.”

Auditing Your Advertising Data

15:34 to 16:42

Discover step-by-step methods for auditing brand advertising data and improving tracking.

“Give me the step-by-step of how you actually audit this for brands that want to know.”

The Switch to Server-Side Tracking

16:42 to 19:31

Explore why server-side tracking is vital for accurate data fidelity in advertising.

“Do you have any data on how, because I remember server-to-server is such an old technology, right?”

The Impact of AI on Google's Search Revenue

19:31 to 20:36

Examine how AI advancements are affecting Google's search revenue and advertising models.

“But yeah, I think we're feeling pretty ready to grab onto the opportunity for our brands.”
Show all 11 chapters

The Future of AI and Advertising

20:36 to 22:14

Discuss the integration of AI in advertising strategies and its implications for businesses.

“The content aggregators, those are the people being hurt the most because they're just pulling content and advertising that content and charging revenue on that content.”
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Transcript

Automatic transcript. May contain errors.

0:00Dougie:The native build in Google Ads we've found to be fraught with errors and inaccuracy. Google generally, in our experience, has a 90 % rate on just about every customer being identified as net new, which we just know to be false. You should have different goals associated with repeat purchasers when compared to net new acquisition and be treating acquisition of net new customers differently from returning. A common occurrence in lead gen is, okay, on the advertising platform, you're driving a ton of leads. Great. We've got super low CPLs. It's exactly what we want. And you look on the back end and they're all crap quality.

0:35Dougie:So over time with our lead gen clients, we found, okay, once we have enough data on lower funnel quality touch points on these leads, let's feed that information back into the platform.

0:52It's all killer, no filler. I'm Eric here with pilot host, Google lead Dougie. Welcome. I know we have an exciting topic today around how we need to be feeding the right data to Google to optimize towards the right goal. What have you brought for us today, Douglas?

1:10Dougie:Yeah, so we're talking a little bit about something that's natively built into Google Ads and focusing on new customer acquisition. But the native build in Google Ads we've found to be fraught with errors and inaccuracy. So we've been working through it in a slightly unique and more nuanced way, which I'm excited to dig into. And it's the most pivotal thing in modern digital marketing, which is really being able to understand your incrementality, understanding who you're bringing in who are new buyers and who you are maybe retargeting and bringing back in. And those users are quite often from external platforms a little less valuable because you might have got them anyway with email.

1:54You might be counting them as email revenue or some other traffic source, right?

1:58Dougie:Yeah. And at the very least, you should have different goals associated with repeat purchasers when compared to net new acquisition and be treating acquisition of net new customers differently from returning. And Google's tried to do this. You can upload customer match lists and try to differentiate new versus returning customers, but it's all still based on cookie data, right? And so using a platform, a server-side tool like Elevar allows us to get a bit more accuracy on, okay, who are truly the net new versus the returning. And especially for brands that have a high level of returning traffic.

2:33Dougie:So CPG, right, is one that jumps out. Apparel even at times. You definitely want to value a new customer differently than a returning customer. and Google generally in our experience has about a 90 % rate on just about every customer being identified as net new which we just know to be false we've applied this to a multitude of brands and found that it's pretty much even across the board even when we're pulling direct CMLs from from Shopify or from Klaviyo that we're very confident in the segmentation of Google's still aligning these users as being net new when for a fact we know that they are not.

3:15Dougie:So how are they doing this? Is this because cookie data is only lasting a certain amount? How long are cookies lasting at this point? Yeah, so it depends on the browser you're using, but there are definitely limited timeframes now, right? And especially if you're using an imported conversion goal from GA4, for example, you have the same issue where GA4, like Google, have a difficult time if they're not being fed server-side information, they have a difficult time attributing net new versus returning. And so, yeah, it's really integral for a full funnel marketing strategy applied to Google that we have that interpretation of net new versus returning.

3:56I can imagine almost every marketer would look at that if they saw a 90 % new customer rate from a platform like Google. they probably would be smart to doubt that. That seems extremely, like you guys just knew it was wrong. You backed it up with data.

4:10Dougie:Yeah, and I think most people would align to that kind of thought process of, hey, this seems off. I think you've got some people who are maybe false actors in the space where they'll take that information, they'll go to a client or go to their boss and say, hey, look at all the net new I'm driving through Google, right? Whereas we're trying to really unpack, okay, is this truly incremental? Is this truly what we think? What we're trying to do? Is it truly what we're doing? And it's always kind of trying to peel back the hood and understand what we're actually targeting. And it actually initially came from a bit more of a lead gen thought process.

4:46Dougie:So a common occurrence in lead gen is, okay, on the advertising platform, you're driving a ton of leads. Great, we've got super low CPLs. It's exactly what we want. Then you look on the backend and they're all crap quality, right? So over time, with our lead gen clients, we found, okay, once we have enough data on lower funnel quality touchpoints on these leads, let's feed that information back into the platform. So that's operating off of a qualified user as opposed to just any lead that came in the door. And you are able to go further and further down, provided you have enough data to feed back into the platform.

5:22Dougie:So we took that kind of thought process and applied it to DTC. and we think generally what we're trying to do here on Google is acquire net new customers, right? That's our goal. If we're targeting a ton of brand and we're a CPG client and we're naturally getting a lot of repeat buyers, we don't want to be spending two, three, four, five, whatever amount per click on these users that are naturally coming back and purchasing. We want to make sure our efforts are focused on net new. So optimizing to a net new conversion goal, as opposed to segmenting at the audience level, we're actually picking a conversion goal that is aligned to net new.

6:02Dougie:And that allows the algorithm to focus in on that as the performance target, as opposed to targeting any purchase. And then we're using a poor segmentation of net new versus returning. Exactly. That just is okay. So you're seeing, so it's one of those, those changes that has ongoing incremental benefits because you're actually putting good data in versus bad data, which we've talked, I know in the past about you can get locked in these, you know, your performance can dwindle in a sort of downward spiral if it continues to cycle in bad data. Yeah, a hundred percent. If you are, it's like tying this to AI, right?

6:40Dougie:If you give it a bad prompt, you're probably not going to bad inputs lead to bad outputs, right? Bad prompts probably don't lead to the optimal result you're looking for when using AI or what have you. And like all this algorithmic bidding is automated. It is AI, right? So we have to feed in the right input so that we get the right output, the business aligned output of more net new acquisition. It comes down to that conversion level going deeper as opposed to that upper level audience that we're trying to segment. Where we're being told that these are converters versus our data, which is actually converters.

7:15Dougie:Exactly. And so how are we doing it? Yeah, so LLVAR has a functionality. So server-side tracking, first and foremost. Generally, it's more accurate. We have the server being the middleman and first-party cookies as opposed to third-party. So we just generally get more accuracy out of server-side tracking. And then the server is able to, or the LVAR is able to determine a new versus returning customer more accurately. And we are pulling that conversion goal from LVAR into our ad campaigns, provided they have enough conversion data behind it. You don't want to do this if you've got one conversion a month or what have you.

7:53Dougie:You're just not going to get a high enough volume of data to feed back into the algorithm. But for most CPG brands that are of a relatively decent size, you'll get enough data back where you can focus in on NetNew exclusively because you're getting the conversion volume to provide the Google algorithm with enough learnings behind who these customers are. Super cool. Are there other, is Elevar the only platform that does this or are there other platforms that do this? Would Triple Whale do it? I don't believe Triple Whale has a native, like they're more MTA than kind of a server side tracking solution.

8:31Dougie:There are definitely others out there, but LLVAR is generally the one we've preferred to partner with. So if you're listening to this and you do this and you work with LLVAR, tell them that DTC sent you and that they should sponsor the newsletter or come on the podcast. Yeah, exactly. Because I feel like we talk about LLVAR quite often on the Google side. It must be absolutely indispensable. What kind of results, like what kind of increase in the results did we see after setting up this more accurate server side conversion tracking? Yeah, we're definitely starting to see it's a slow pivot, right?

9:07Dougie:Because we're using 30 day look back windows and a you're shocking the system to change from all conversions that, hey, maybe 50 percent of these conversions weren't net new. And you're going you're essentially cutting some of that volume. So there's that initial shock to the system to overcome. But generally, we're starting to see an uptick in new customer purchases overall coming through Google, as well as a decrease in customer acquisition costs. So it's still something we're testing and trying to find the right fit for the right brands, right? Like this shouldn't necessarily be applied across the board for every single client.

9:43Dougie:But the general philosophy of aligning your conversion action to the ultimate goal is what I'm trying to get across here. And most of the time for DTC brands, we're trying to get net new acquisition through Google and leaving returning customer purchases for other platforms. You mentioned email being the primary one there, or at least having separate goals aligned to those audience segments as well. Right. It might be valuable to get a returning purchase, but we have a different level of value assigned to that compared to a net new. Give me an idea of how you would score that in a campaign or in an overall account.

10:21Dougie:Yeah, so I think it depends on your repeat rate, your LTV, right? So you have to take those things into account. One thing that I've been discussing recently as well to kind of get really into the weeds is like product entry point for brands that have apparel brands, for example, brands that have quite a few different SKUs. we're trying to look at, okay, how much is a customer worth on average? So LTV, right? How much is it costing us to acquire that new customer? And then on the repeat purchases, what are they buying? How much are they spending? What does the second purchase look like typically compared to the first, right?

10:58Dougie:These are all things that we have to unpack at the business level to make sure our marketing efforts are reflecting the overall business goals. And I think that oftentimes we just look at an account we look at okay what's our ROAS look like if we just look at ROAS that has 50 % returning customers it's a bunch of brand awareness like all stuff that you and I have talked about in the past on these podcasts but we're probably not being particularly incremental to growing the business so that's why we really want to unpack and make sure that at the high level our strategy is aligned to what we're actually seeing in platform and we're we're not just kind of taking that at face value.

11:37Dougie:We're looking under the hood to say, okay, what are the conversions looking like? What do the search terms look like? What are the placements looking like? Is this aligned to our higher level strategy? Getting kind of zoomed out there, but all that to say, there are quite a few inputs you want to look into that determine how much you should value a returning customer versus a net new. And for each brand, that's going to be slightly different based on those inputs. Are there any other aspects of the conversion journey that could be improved if they were used, you know, this enhanced, if they used an enhanced data set versus maybe what the platform says it can do?

12:15Or is this sort of a, is this just a new one-off instance?

12:18Dougie:Yeah. Do you mind unpacking that a little bit, a bit more? I don't know. I'm just trying to, I'm just trying to think of other areas where a system like Google is telling you something and you're building assumptions or campaigns off that, where if you were to, you know, place an Elevar instance, and it was able, I'm just trying to think if there were other aspects of the conversion journey that would benefit by using enhanced data versus on platform data. Yeah, I guess I would say that, again, like the more quality data you provide the platform, the more quality results you're going to get again, back into good inputs lead to good outputs.

12:56Dougie:bad inputs lead to bad outputs. So the parallel I'll maybe draw, which isn't necessarily about taking a new data source into account, but you say, okay, if we provide more quality data or we're analyzing data that's of quality, we'll be able to drive more performance. The most common example when I look at accounts, when I'm auditing accounts, I see, okay, we're trying to target a lot of specific terms on the keyword side of things, but keywords are just signals nowadays. They're not, they're not especially broad match, right? And then you look at the search terms, they're all over the place, nothing near, remotely close to what you're actually trying to target.

13:37Dougie:So again, coming back to looking under the hood, making sure we're aligning to good quality data. So we might have the intention of, hey, we're doing the right work and targeting the right keywords and getting that new. But if we don't pull that back and trying to unpack, is that what's happening in actuality, then we're giving a bad input in terms of a irrelevant targeting sequence, leading to a bad output, which results in either no conversions or poor quality traffic or what have you. How do you account for LTV? Because you want to train the algorithms on finding high LTV customers. I remember I used to do this back in the day on Meta, where we'd have people who are multiple repeat purchasers and we'd be using them for lookalike, building them into lookalike audiences.

14:25That goes on with Google as well?

14:27Dougie:Yeah, so when it comes to lookalikes, the only, about a year, year and a half ago, Google walked back their abilities. Oh, I remember that. Yeah, so now you can only use lookalike audiences on demand gen, which encompasses YouTube. So lookalike audiences can be deployed there. But in terms of how we're using LTV and trying to provide high-quality customer signals back to Google. It's not as prevalent as it used to be, partially because they've walked that part of things back. It's still useful to have Eklavio integration and make sure that you're uploading those CMLs to continue lookalikes for the whales of your consumer base or what have you.

15:09Dougie:But generally, it comes down to making that LTV analysis and aligning that to customer acquisition costs, which I candidly don't think enough brands are doing. That's great. Super interesting. Everyone in the audience needs to take a look at this and audit at the very least. What's the simplest way to go about auditing whether this is happening? You say, look under the hood. Give me the step-by-step of how you actually audit this for brands that want to know. Yeah, so for one, it's whatever CRM you're using or Shopify. I don't really have high confidence in, as mentioned, Google Ads and Analytics' ability to distinguish new versus returning for reasons we got into around first versus third-party cookies, what have you.

15:57Dougie:Really, the easiest way, I'm trying to find a way to present this without just straight up pitching Elevar, but try to get server-side tracking set up. It isn't that expensive to get sorted. There are trusted partners out there like Elevar that you can work with and try and get an accurate picture of your data set when it comes to new versus returning. Don't rely on just the platform itself. And then once you've got either server-side tracking or alternative solutions to diagnosing your new versus returning from paid ad platforms, then you can make determinations on whether you should make the pivot to optimizing towards net new or continuing on with the current conversion goals that you're operating with.

16:42Do you have any data on how, because I remember server-to-server is such an old technology, right? Like when I was running web display ads in 2009 or so, we were on server-to-server tracking. do you have because but there's and I know that the cookie side tracking has sort of been deprecated in a number of ways do you have any data or anecdotes on why everyone really needs to be on server to server is it like a good chunk percentage better even though we're talking about how to improve server side even further with Elevar but just already that switch from cookie to server side tracking is it a big improvement in your data fidelity just with that it is and

17:20Dougie:scale is a factor too right if you're a small brand driving like a few conversions a month like then it doesn't really make sense right you're there's there's the the concept of scale having a significant impact on your data set right like a five percent a ten percent whatever increase on three sales a month doesn't really matter for what you're feeding back into to google that's not even that's point one of a sale or what have you right um whereas when you get up to a certain level of volume then it definitely makes a significant impact and i'm throwing out five to ten percent i think in certain cases depending on um your cookie uh consent banner um implement implementation on site especially if you're a brand operating in california like the the law there and in the uk around privacy is only going to continue to like those are going to be the leading geos and law around privacy for advertisers.

18:16Dougie:So I think if you're in those two key areas, you're probably already seeing maybe lawsuits come into play or you're being dinged by certain policy violations from the governing parties in those geos. And I think that watching those geos specifically over time, like it's all like the cookie list future we've been talking about for forever, right? And it is eventually going to show up. We're already seeing ad platforms use more and more modeled conversions compared to actual cookie data. So yeah, I think that if you're of a high enough scale, and if you have enough data flowing in, you should absolutely be adopting server-side tracking because the benefit, even if it is 5%, is pretty significant at scale.

19:03Dougie:and my argument would be that I don't want to just throw out okay it's 25 % it's 30 % because I don't have the number offhand but in my experience with these brands that we've integrated Elevar on it has been significant the trackable conversion growth in platform and it's again it's about rolling thunder as well right it's about improving the model over time which the more fidelity your data has the better it's going to be long term um super cool uh look forward to this what uh what are your vibes this year on uh on q4 on the google side of things excited always excited for q4 um yeah i think uh we haven't had any big roadblocks come our way um so we're pretty pretty excited to have another uh dialed q4 i think um yeah there's some small new product rollouts that google's been working with that I think probably won't have completely been fleshed out by Q4, thinking of things like AI Max and what have you.

20:05Dougie:But yeah, I think we're feeling pretty ready to grab onto the opportunity for our brands. Probably still room for a few brands out there who want to get on, join the Pilot House team. Oh, I also, but I wanted to ask you, what did you think of that headline uh google's search revenue being slashed by 40 percent by their ai summaries which are very useful yeah so i actually had a internal discussion about this and if you think about the search process if you're searching something that doesn't have a binary answer you're more commonly going to be served these ai overviews right they're they're meant to answer more upper funnel type queries and I was having this discussion with a colleague and we were talking about how this more significantly impacts people outside of the DTC space.

21:00Dougie:In the content ecosystem. Exactly. The content aggregators, those are the people being hurt the most because they're just pulling content and advertising that content and charging revenue on that content. Whereas for DTC brands, Like if someone searches yellow Nike shoe size 11, like there's not going to be an AI overview talking about the benefits of a yellow Nike shoe that size 11. It's going to still serve you your shopping listings. And long term, I think there's going to continue to be a short term rocky road as Google tries to figure out, OK, how am I going to integrate with AI? I think it's going to do it slowly but thoughtfully.

21:46Dougie:another podcast where we can talk about the difference in how Gemini is using I guess their structured information to influence discoverability versus other LLMs but yeah let's do that it'd be fun actually to I know that ChatGPT we're getting leads for the agency like every week we're getting a couple leads now from ChatGPT which is wild and that must be happening for businesses all over the place so optimizing for that in some ways. I'm sure it's akin to SEO in some ways. So we can, let's definitely put a pin in that and come back to it. Yeah, I've got a cool tidbit for you there from, there's lots of good content out there.

22:25Dougie:But Fred from Optimizer used to work at Google and now launched his own, or now, multiple years ago now, launched his own PPC management software. Has some, yeah, unique takes on that specifically. Oh, I love rogue ex-Googlers. Yeah. and he still obviously works in close concourse with Google but yeah anyhow I think we've strayed away from your initial ask around no this is great we always like to end with a ramble we don't have a Jeff Bezos to point to like we do on the Amazon team so and I think and we'll just save the hockey conversations for Slack because this has been great thanks for coming on the all killer no filler DTC podcast today Dougie Yeah, of course.

23:11Dougie:Anytime. And I look forward to our chat on maybe a bit more AI focus on the next one.

23:40Thank you.

From the publisher

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If Google Ads tells you 90% of your conversions are from new customers—you’re probably being misled.


In this episode, Eric sits down with Pilothouse’s Dougie, who exposes one of the biggest attribution errors in digital marketing: Google’s cookie‑based misreporting that makes you believe you’re crushing new customer acquisition when you're actually…not.


This episode is a must‑listen if you're spending on Google Ads and think you're scaling. You may just be paying full price to reacquire your own customers.


What we expose in this episode:

Why Google thinks nearly everyone is a new customer—and why that’s false

How cookie-based tracking is sabotaging your incrementality

Why server‑side tracking (via Elevar) is the fix—and how to set it up

The real cost of bad data: wasted CAC, poor ROAS, and misaligned goals

How to audit your own account to uncover the truth


If you're not feeding the right data to Google, you're training the algorithm to do the wrong thing. This is the fix—revealed.


Timestamps:

00:00 – Why Google's new customer data is misleading

02:00 – The impact of server-side tracking on attribution

04:00 – How Google misidentifies returning customers as new

06:00 – Training the Google Ads algorithm with quality data

08:00 – Using Elevar for accurate net new conversion tracking

10:00 – Aligning campaign goals with business outcomes

12:00 – Auditing new vs returning customer data

14:00 – LTV, cookie policies, and the future of tracking

16:00 – Why server-side tracking improves data fidelity

18:00 – The rise of AI summaries and their SEO impact

20:00 – Optimizing for ChatGPT and the future of AI search


Hashtags:

#GoogleAds #CustomerAcquisition #ConversionTracking #ServerSideTracking #Elevar #DigitalMarketing #DTCMarketing #PerformanceMarketing #AIsearch #EcommerceGrowth


Subscribe to DTC Newsletter - https://dtcnews.link/signup

Advertise on DTC - https://dtcnews.link/advertise

Work with Pilothouse - https://dtcnews.link/pilothouse

Follow us on Instagram & Twitter - @dtcnewsletter

Watch this interview on YouTube - https://dtcnews.link/video

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