Conversion Tracking Services
Ad platforms optimize toward the conversions they can see, and browsers now hide a growing share of them. We set up GA4 and Tag Manager as the shared layer, pair every platform’s pixel with its server-side Conversions API, and verify each event end to end before a campaign optimizes on it.
Pixel-only tracking misses the conversions you paid for
Ad blockers, privacy settings and App Tracking Transparency drop conversion events before they reach the platform. The campaign optimizes on what is left, cost per result climbs, and the report says the channel stopped working when the tracking did.
A browser signal and a server signal for every platform
The pixel catches what the browser allows; the server-side connection sends what it does not.
| Platform | Browser or device signal | Server or app signal |
|---|---|---|
| Meta | Meta Pixel | Conversions API |
| TikTok | TikTok Pixel | Events API |
| Snapchat | Snap Pixel | Conversions API |
| X | X Pixel | Conversion API |
| iOS apps | Device ID, only for people who opt in | SKAdNetwork |
What conversion tracking covers
One definition of a conversion
Leads, purchases and subscriptions named once, with the same values and the same rules, so every platform and every report counts the same event.
GA4 and Tag Manager
The shared layer under every platform: tags managed in one container, events defined once, and campaign links tagged so GA4 reports each source correctly.
Server-side Conversions APIs
Each platform’s pixel paired with its server-side API, sending the conversions ad blockers, privacy settings and short sessions drop — deduplicated so nothing counts twice.
App attribution
For iOS apps, SKAdNetwork set up so install and purchase campaigns still report results without device-level tracking.
Audit, define, pair, verify
Nothing optimizes on an event until a test conversion has been traced all the way through.
- 01
Audit what fires today
Every tag, pixel and conversion event checked against what actually happens on the site — duplicates, gaps and events counting the wrong thing.
- 02
Define the conversions
The events that matter to the business, their values and their rules, agreed once and documented.
- 03
Pair browser with server
Tag Manager and GA4 rebuilt where needed, and each ad platform’s pixel paired with its server-side API, with event IDs that let the platform deduplicate.
- 04
Verify end to end
Test conversions traced from the click to each platform’s events manager and to GA4 — before any campaign is optimized toward them.
Tracking that changed the numbers
$60–$75
Pro Football Focus
Meta cost per purchase, down from $125–$140, after Conversions APIs were implemented across Meta, TikTok, X and Snapchat to recover signal lost to iOS 14.5 — with SKAdNetwork attribution set up for the iOS app launch.
Anytime Capital
GA4, Tag Manager and the Meta Pixel connected into one measurement framework for lead attribution and customer behavior across in-store and online channels.
Read the case study →The tools behind the work
Native to our workflow or run through partners — chosen for the job, not the logo.
- Google Analytics 4
- Google Tag Manager
- Meta
- TikTok
- Snapchat
Where this fits
Attribution Modeling
Multi-touch attribution that gives each channel credited weight across the whole journey, not just the last click.
Measurement
Conversion tracking, attribution and reporting that tie content, search and paid media to revenue.
Lead Generation
Scale acquisition against the numbers you already know.
Marketing Automation
Turn manual marketing work into systems that run on their own.
Further reading
Marketing Analytics 101: How to Measure, Analyze, and Optimize Campaign Performance
Marketing analytics is the practice of collecting, analyzing, and interpreting data to understand how marketing activities influence business outcomes.
Marketing Attribution 101: Choose the Model That Fits
Most teams don't have a spending problem — they have a credit problem: revenue comes in, but no one can say what actually caused it. Here's how marketing attribution works, how the models really compare, and how to choose one that fits your business with the Fit Test, a four-question diagnostic.
Paid Media 101: A Starter’s Guide to Advertising Success
Paid media refers to advertising efforts where you pay to promote your brand or content to a targeted audience. In this comprehensive guide, we’ll cover everything you need to know about paid media – from what it is and why it’s important, to the various channels available, how to craft an effective strategy, ways to target the right audience, and how to measure success.
Frequently asked questions
What is a Conversions API?
A server-to-server connection that sends conversion events from your site or backend directly to an ad platform, alongside the browser pixel. Meta and Snapchat call theirs the Conversions API and TikTok calls it the Events API; the purpose is the same — conversions the browser misses still reach the platform.
Why did tracking get worse after iOS 14.5?
iOS 14.5 introduced App Tracking Transparency, which lets people opt out of cross-app tracking, and browsers have tightened cookies and blocked more scripts since. Pixel-only tracking now misses a meaningful share of conversions, so platforms optimize on incomplete data.
Will server-side tracking double-count conversions?
Not when it is set up properly. The browser and server events carry the same event ID, and each platform deduplicates them, keeping one conversion and the most complete data from either source.
Does better tracking actually lower costs?
It can. Platforms optimize toward the conversions they can see; when they see more of them, delivery improves. At Pro Football Focus, Meta cost per purchase fell from $125–$140 to $60–$75 after Conversions APIs were implemented.
Do you set up UTM tagging too?
Yes — tagged campaign links are part of the shared layer, so GA4 assigns every visit to the right source and channel. The free UTM builder shows which GA4 channel a link will land in before you ship it.
Let your platforms see the conversions they drive.
Book a call and we’ll look at what your pixels, tags and analytics count today — and where conversions are going missing before they reach the platforms optimizing on them.