Tracking & Attribution

Know what is really working, so every decision gets easier.

Good marketing decisions depend on good data, and most brands are working with less of it than they think. We set up analytics, tagging, server-side tracking and conversion APIs properly, then build attribution and reporting your whole team can trust. The result is a clear view of what each channel contributes, so budget follows evidence rather than guesswork and every platform learns from accurate signals.

Every part of your measurement, set up and working together

Measurement strategy

We start by agreeing what matters to the business and which events, conversions and metrics prove it. That gives every channel, platform and report one shared definition of success, instead of each tool telling its own version of the story.

An AI agent for your marketing data

Every measurement setup we run comes with an agent that watches your tracking and data around the clock. Ask why platforms disagree, whether a tag has broken or which channel is really driving new customers, and get a clear answer backed by your own numbers.

It spots gaps, flags broken events and drafts fixes and reports at speed. Our team reviews every change before it touches your tracking or your reporting, so nothing goes live without a specialist checking it first.

You
Why does Meta report more sales than Shopify?
Meta counts view-through conversions and overlaps with search. I have compared both against order data and drafted a note on which figures to use for budget decisions.
You
Is our checkout tracking still working?
Purchase events dropped after last week's theme update. I have traced it to a missing trigger in Tag Manager and prepared a fix for the team to check.
Ask about your tracking and attribution

Why brands trust Vertical with their tracking and attribution

Measurement only matters if it changes decisions. We set it up properly and connect it to the work that spends your budget.

Built by the people who use it

The same team that runs your paid media, email and site relies on this data every day, so we care that it is accurate and useful.

Platform signals that work

Conversion APIs and server-side tracking send cleaner data to ad platforms, which helps their algorithms find better customers for your spend.

One version of the truth

We reconcile platform numbers with analytics and sales data, so leadership, finance and marketing can work from the same figures.

Privacy built in

Consent and data handling are set up to respect visitors and follow the rules, without throwing away the measurement you need.

AI with human judgement

Agents monitor tags, events and data quality continuously. Our specialists decide what changes and make sure every fix is tested before release.

Documented and handed over

Every tag, event and report is documented, so your team understands the setup and is never locked into a black box.

See how our clients are changing their businesses

FaceGym
50% more purchases, 41% more bookings
Canagan
900% email revenue growth
Tribal
74.3% more conversion value
McAdams
148% more email revenue
Decant Group
477% more leads
Moskovskaya
5,560% follower growth, 550% ROAS
Elit Vodka
New identity, 400% more engagement
Aesthetic Intelligence
3,000+ leads per webinar, 3,200% ROI
Decant Group
“Vertical transformed the way we approach digital marketing. They helped us simplify a complex investment offer, build high-performing funnels and scale campaigns with confidence. The results speak for themselves with lead volume, quality and efficiency all improved dramatically. They’ve been a true partner in our growth.”
Robbie Heald
VP Growth, Decant Group
477%
more leads

Full-funnel paid media, creative and bespoke landing pages that made whisky and fine wine investment simple to say yes to.

View case study

A powerhouse in a Power Station.

Vertical is a small, senior team of strategists, creatives and performance marketers based at Battersea Power Station in London, with clients and colleagues around the world. Strategy, creative and performance come from one team, with AI built into how we plan, make and measure.

The building has stood on the Thames for the best part of a century, and for fifty years it kept London’s lights on. We like the precedent.

Tracking and attribution questions, answered

What is marketing attribution?

Marketing attribution is the process of working out which channels and touchpoints contributed to a sale or lead. Most customers interact with a brand several times before buying, perhaps seeing a social ad, searching on Google, reading an email and then converting. Attribution assigns credit across those steps so you can judge what each channel is really worth. No single model is perfect, so we compare platform reporting, analytics data and backend sales to build a practical view your team can use to make confident budget decisions.

Why do Meta, Google and Shopify all report different numbers?

Each platform measures conversions in its own way. Ad platforms use different attribution windows, count view-through conversions and often claim credit for the same sale, while Shopify records actual orders and analytics tools see only what tracking and consent allow. None of them is simply wrong, but none tells the full story either. We reconcile these sources, explain the gaps and agree which numbers to use for which decisions, so your team stops debating the data and starts acting on it.

What is server-side tracking and do we need it?

Server-side tracking sends event data from a server you control rather than relying entirely on scripts running in the visitor's browser. Browser restrictions, ad blockers and shorter cookie lifetimes mean browser-only tracking increasingly misses conversions. Moving key events server-side, usually alongside platform conversion APIs, makes your data more complete and reliable. Most brands spending meaningfully on paid media benefit from it, though the right setup depends on your platforms, site and budget, which we assess before recommending anything.

What is the Meta Conversions API?

The Meta Conversions API lets you send website and offline events directly from your server to Meta, rather than relying only on the browser pixel. Used together with the pixel and properly deduplicated, it gives Meta a more complete picture of who converts. That helps its delivery system optimise towards valuable customers and makes reporting more dependable. Google, TikTok and other platforms offer similar server-side connections, and we set these up as part of a wider tracking plan rather than in isolation.

Can you audit our Google Analytics 4 setup?

Yes, and it is often where we start. Our audit reviews your GA4 property configuration, data streams, events, conversions, ecommerce tracking, channel groupings, filters, consent setup and links to other platforms. We check whether the numbers match your sales data and whether reports answer the questions your team actually asks. You receive a clear, prioritised list of issues and fixes, explained in plain language, whether we then implement them or your own developers take them forward.

How does cookie consent affect tracking?

Under UK and EU rules, most marketing and analytics cookies need a visitor's consent before they are set. When people decline, standard tracking loses visibility of their activity. Tools such as Google Consent Mode let tags adjust their behaviour based on consent and help platforms model some of the missing conversions. We configure your consent banner, tag behaviour and platform settings together so you stay compliant while keeping as much useful measurement as the rules allow. We recommend checking specific legal questions with your own advisers.

What is the difference between attribution and incrementality?

Attribution assigns credit for conversions across the touchpoints a customer saw. Incrementality asks a harder question: would those sales have happened anyway without the marketing? A channel can look strong in attribution reports because it reaches people who were already going to buy. Incrementality tests, such as geographic holdouts or platform lift studies, help reveal the true added value of a channel. We use attribution for day-to-day decisions and recommend incrementality testing when the budget and stakes justify it.

Do you set up Google Tag Manager?

Yes. We set up or tidy Google Tag Manager with a clear, documented structure for tags, triggers and variables, covering analytics, ad platform pixels and conversion events. A well organised container makes it quicker to launch new campaigns and platforms, reduces the risk of duplicated or broken tracking and keeps unnecessary scripts off your site. Where it makes sense, we also connect Tag Manager to a server-side container so key events are sent more reliably.

Which platforms do you work with?

We work with the platforms most growing brands rely on, including Google Analytics 4, Google Tag Manager, server-side tagging, Meta, Google Ads, TikTok, LinkedIn, Klaviyo and Shopify, along with common dashboard and data tools. If your stack includes something else, we will assess it and tell you honestly whether we are the right team to help. The aim is always a connected setup where each tool shares accurate data with the others.

How long does it take to fix our tracking?

It depends on the size of your site and how much is already in place. Audits are usually quick, and fixing core issues such as broken purchase events or duplicate tags can often be done soon after. Larger projects, such as moving to server-side tracking or building attribution reporting from several data sources, take longer because they need careful testing. We agree a clear plan and timeline at the start and prioritise the fixes that matter most to your decisions.

Can you build marketing dashboards for us?

Yes. We build dashboards that bring together spend, revenue, customers and channel performance in one place, using tools that fit your team and budget. Rather than filling screens with every available metric, we design around the decisions you make each week and month. Every dashboard is explained in plain language and documented, so your team knows where the numbers come from and can trust what they are looking at.

How do we get started?

The best first step is a conversation about how you currently measure marketing and where the data lets you down. From there we usually audit your analytics, tags and platform tracking, then share a prioritised plan covering fixes, improvements and reporting. Whether you need a full measurement rebuild or help with a specific problem such as conversion API setup, we will tell you plainly what we think matters most and why.

Bring us the ambition. We’ll build the system behind it.