You know what your ads cost. Do you know what they bring in?

We look inside your account and your tracking, and tell you exactly where your budget leaks away. Specific, with the numbers attached.

  • An audit of your Google Ads or Meta Ads account
  • A check on your tracking, GA4 and consent settings
  • A priority list: what to fix first and what it is worth

In your inbox within five working days. No sales pitch, no obligation.

180+
Ad accounts worked on
160+
Tracking setups built
12 years
Experience, part of it at Google
5 days
From request to audit in your inbox

Not a forty page report. A list of what is broken.

Most audits are a quote in disguise. This one is not. You keep the findings even if you never work with us, and you are free to pass them to your current agency.

01

Your tracking

Consent mode, conversion actions, double counting, GA4 settings, and the question nobody asks: does what you see in Google Ads match what your finance system says?

02

Your account structure

Campaign split, branded against non-branded, bidding strategy, budget allocation, and the settings that quietly cost money. Location set to “presence or interest” is a classic.

03

Your search terms

We split your search terms report into branded and non-branded. In many accounts, 90 per cent of conversions turn out to come from demand that already existed.

04

Your ads and assets

Does your copy answer the search intent, and does your landing page deliver what the ad promised? That second one is wrong more often than you would think.

05

Your landing page

Speed, mobile, form placement, and whether the promise in the ad actually appears on the page people land on.

06

The priority list

Every finding with an estimate: what it costs you now, how much work the fix is, and whether it needs doing this month or can wait. That is the part you can act on.

Three steps and you know where you stand

You fill in the form

Seven fields. We only ask what we need to work out whether we can genuinely help you.

2 minutes

We have a short call

Thirty minutes for you to explain what you are aiming at. After that you give us read access to your accounts. Read only, we change nothing.

30 minutes

You get the audit

A document with the findings, the impact of each one, and the order we would tackle them in. We walk through it together.

Within 5 working days

Request your audit

You will hear from us within one working day. You get a real reply from Marloes, not an automated confirmation with a sales email behind it.

  • No cost and no obligation
  • You keep the findings, with or without a partnership
  • We will say so if we think you do not need us

Rather call? +31 6 15 18 79 05
Or email hello@cobyagency.com

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Pick one or two topics.

We ask so we can judge whether an audit is worth your time yet. Below 1,000 euro per channel there is usually too little data to draw conclusions from, and we will tell you that plainly.

Please choose an amount.

Optional. The more specific, the sharper the audit.

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Your details come to us and nobody else. We do not sell them on and we will not add you to a newsletter.

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You will hear from us within one working day. If you would rather not wait, pick a moment in the diary below.

Pick a time now

Five times the same order: measure first, scale after

Every case below started with an audit. This is what came out of it.

Education · Google Ads

Amsterdam Data Academy

Search had hit a ceiling in an auction with CPCs around 20 euro. We sharpened the conversion signals, built a portfolio of lead magnets and moved budget into Demand Gen. Demand got built rather than bought.

-76%
Cost per lead
3.7x
Leads per week
8.1
ROAS
Read the case →
Hospitality · Ads and tracking

De Eenhoorn

Two to three quote requests a month and no tracking to show where they came from. We built the measurement foundation first, the campaigns after. The approach now runs across six OneMeeting Group venues.

1,500%
ROAS
4-5
Quotes per week
65%
Bookings from paid
Read the case →
E-commerce · Google Ads

InBalance Petfood

The account ran on ROAS and it ran well. We moved it to POAS, so bidding follows the actual margin per order. Performance Max went back to Standard Shopping with a branded split in most places.

7.65
POAS
10
Blended MER
DE
Second market opened
Read the case →
Healthcare · Ads, SEO and tracking

BGB Dentistry

A new practice in Schiedam, zero patients, zero tracking. We started the same week the doors opened. Google Ads for direct demand, Meta for awareness, treatment pages for the long run.

12 → 85
Conversions per month
+276%
Organic sessions
12.3%
Conversion rate
Read the case →
Recreation · Tracking and analytics

Climbing Network

A new Webflow site was the moment to rebuild tracking rather than move the old mistakes across. Six systems connected, including two booking platforms through iframe and API, with server-side tagging via TAGGRS.

+7.7%
Purchases measured
+9.2%
Data measured
6
Systems connected
Read the case →

We found a leak in every one of these accounts

In almost every audit something surfaces that a previous agency missed. A conversion counted twice, budget going to brand traffic you already had, a channel that performs better on paper than in reality.

See what is sitting in yours

★★★★★

We had a really good partnership with Coby Agency on Google Ads and Meta Ads. Marloes thought along with us about how to put our dental practices on the map, keeps up with the latest developments, and contact was always quick and easy.

BGB Dentistry

Dental practice, Schiedam

Google review

★★★★★

We had a great collaboration setting up conversion tracking and our Google tools. Communication ran smoothly throughout the entire partnership, and afterwards, everything is properly configured. We had no worries about things not working out, which is very nice and gives peace of mind while working.

Jesse Caljé

Marketing Manager, Climbing Network

Google review

★★★★★

I wasn’t looking for a large agency, but a specialist with whom you can communicate directly. The speed of response is something that I and other venues really value highly; it almost feels like you’re working with a colleague. Over half of our enquiry forms now come from advertising.

Maarten

Location Director, De Eenhoorn

Google review

See all reviews on Google →

Pick a time yourself

Thirty minutes with Marloes. You explain what you are running into, we tell you honestly whether and how we can help. Fill in the form above first and your name will already be there.

The diary loads as soon as you reach this point.

Open the diary in a new tab
Marloes Slotboom, founder of Coby Agency

Coby’s founder Marloes does your audit.

I started with Google Ads when it was still called AdWords (so, a lifetime ago). First at a marketing agency, then at The Body Shop, and later at Google itself.

Then I noticed a gap in the market: many agencies lacked technical skills, and their people worked in silos. I started Coby to do it properly, with a select set of services delivered by a select group of people. Everything works together as a whole, and everything is tracked, so we can provide a true 360-degree digital marketing strategy.

I hold a bachelor’s in marketing and a master’s in data science. That combination is why every partnership here starts with measurement: I understand your customer, and I understand the numbers underneath.

  • Ex-Google employee
  • Ex-eCommerce Manager at The Body Shop Benelux
  • Lecturer in Web Analytics and AI for Marketers
  • Works in most European languages. Born in the Netherlands, based in Barcelona

Frequently asked questions

Is it really free, or is this a quote in disguise?

It is free and you keep the findings whatever you decide afterwards. We hope you will want to carry on with us, but you are welcome to forward the document to your current agency. It happens, and that is fine.

What do you need from me?

Read access to the accounts we are looking at: Google Ads, GA4, Google Tag Manager, Search Console and Meta Business Manager if relevant. Read only. We change nothing unless you ask us to.

How long does it take?

From the moment we have access, usually three to five working days. For a large or complex account we tell you up front if it will take longer, before you are left waiting.

We already have an agency. Does this still work?

Yes. A second pair of eyes is usually the cheapest thing you can do. We do not write the audit as a case against your current agency either. If something is set up well, we say so.

Our budget is small. Is this worth it?

Below roughly 1,000 euro per month per channel there is often too little data in the account to draw firm conclusions. We will say so, and look at whether a tracking check on its own moves you forward. Our minimum for ongoing management is 795 euro per month, but the audit sits outside that.

What happens to my details?

We use them only to contact you about this request. No newsletter, no reselling, no retargeting based on this form. See the privacy policy.

Want to know where your leak is?

Fill in the form and you will know within five working days. If you are not leaving money anywhere, we will tell you that too.

Request your free audit