GA4 Services

Clean Data. Clear Insights. Better Decisions.

BrillMark makes sure your tracking is accurate, complete, and built around the metrics that matter. From GA4 and GTM setup to conversion, ecommerce, and server-side tracking, we handle the technical side of your analytics.

  • GA4 Audits & Implementation
  • Conversion & Ecommerce Tracking
  • GTM + Server-Side Tracking
  • Data Analysis & Reporting
GA4 Service
45,000+
Experiments supported
200+
Agencies and brands served
End-to-End
Development, QA, tracking, and delivery
White-Label
Ready to work under your agency’s brand

Trusted by 200+ Agencies And Global Brands

OUR SERVICES

Making Every Interaction Measurable

10+ Years of Experience. One Goal: Better Results.

Our GA4 & Tracking Services Include

What we hear

  • “Our tests take weeks to go live.”
  • “The backlog keeps growing and nobody builds it.”
  • “We can’t tell if the test actually won.”

What we do

Audits

Full GA4 property and GTM container review, data layer structure and quality assessment, event, conversion, and parameter validation, cross-domain and session continuity checks, and data accuracy reconciliation against source systems.

Book a 20-Minute Call

Buy Capacity The Way It Suits Your Program

Retainer or a Monthly block of hours, & Flexible Models to choose from. Fixed-scope pricing is also available for well defined projects.

FLEXIBLE

Block of hours

The lowest-risk way to start. Buy a block, use it against anything, no expiry pressure.

  • Use across any service
  • On-demand support
  • Tight budget control
  • Ideal first engagement
Start with a block

MOST POPULAR

Retainer partnership

For programs with a steady flow of tests, ecommerce teams and CRO agencies running continuous roadmaps.

  • Predictable monthly cost
  • Named dedicated resources
  • Priority queue
  • Quarterly roadmap review
Discuss a retainer

ONE-OFF

Project based

A defined scope with a defined timeline – a migration, a landing page suite, an analytics rebuild.

  • Fixed scope and timeline
  • Transparent pricing
  • Focused specialist team
  • Handover documentation
Scope a project

Hear It From The Teams We Work With

Gayla Worrell speaking on camera 1:30

I can’t imagine any other companies out there in a similar situation where we are that couldn’t benefit from the services that Brillmark offers.

Gayla WorrellCRO at Snap Finance
Amara Abara speaking on camera 1:10

Finding competent professionals to bring conversion research ideas to life and deliver results for clients without breaking their websites was challenging – until I found Brillmark. Abdullah and his team are a group of technical A-players with whom anyone serious about CRO and experimentation should work. I’ve collaborated with them on multiple projects, and they consistently prove they’re the real deal

Amara AbaraFounder at Conversion Central

Conversion Guides

I’ve worked with BrillMark’s developers since 2014. The abilities around high-velocity testing, quality on complex tests, and overall technical support for CRO are impressive. They’ve been my go-to team across dozens of clients and have become an integral part of how we deliver ROI
Jeremy EppersonFounder and CEO at Conversion Guides
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Case Studies

Analytics Problems. Solved.

GA4 Tracking Audit

GA4 Tracking Audit

Cleaner data. More reliable reporting.

We identified duplicate ecommerce events caused by overlapping Shopify and GTM tracking. We traced each implementation, removed unnecessary tracking, and validated the final GA4 setup.

GA4 Audit · Duplicate Events · Shopify · GTM

Conversion Tracking & Debugging

Conversion Tracking & Debugging

Missing conversions found and fixed.

We traced critical conversion events from the website and dataLayer through GTM and GA4, identified tracking gaps, implemented the required events, and validated the complete flow.

Conversion Tracking · Event Debugging · GTM · GA4

Consent & Analytics Compliance

Consent & Analytics Compliance

Tracking aligned with user consent.

We identified tracking firing before the required consent state. We reviewed Cookiebot, GTM, and consent signals, restructured the setup, and validated consent-aware tracking.

Consent Mode · Cookiebot · GTM · GA4

Let’s Scope Your
Requirement.

Send us your GA4 setup, your goals, or just a hunch that something’s not tracking right. We’ll come back with a fixed estimate and a documented plan — usually within one business day.

  • A 20-minute call with an engineer, not a sales rep
  • A fixed estimate and technical approach in writing
  • A named plan before any code gets written
  • Start with a block of hours — no long-term commitment

    Which Services Are You Interested In?

    FAQ

    GA4 Tracking FAQs

    How long does a GA4 setup or audit take?

    A standard GA4 audit is typically returned within 2–3 business days of getting access to your property and site. A full implementation — custom events, ecommerce tracking, and Consent Mode — usually takes 1–2 weeks depending on how many event types and funnels are involved. Larger multisite or cross-domain projects are scoped individually, typically 2–4 weeks. We’ll give you a specific timeline in writing before any work starts.

    Do you set up direct gtag or Google Tag Manager — and how do you decide which one we need?

    Both — we recommend whichever fits your existing stack. If you’re already running GTM for ads or other tags, we build on top of that rather than adding a second, independent tracking install (which causes double-counting). If you have no existing setup, we typically recommend GTM for its flexibility with future tags, but a simple site with no other marketing tags can be perfectly well served by a direct gtag install. We’ll walk you through the trade-off during the scoping call, not just default to one silently.

    Do you handle Consent Mode v2 for GDPR/CCPA, or is that a separate service?

    It’s included in any implementation project, and available as a standalone engagement if you already have GA4 running but never wired up consent. We configure default-denied consent states, region-specific CCPA handling, Global Privacy Control (GPC) detection, and connect your existing cookie banner (Cookiebot, OneTrust, CookieYes, Complianz, or a custom one) so consent signals actually reach GA4 — not just sit in a banner that looks compliant but doesn’t talk to your tags.

    We're on WooCommerce/Shopify — do you track the full ecommerce funnel?

    Yes. We build out the complete funnel — product views, add-to-cart, cart views, checkout starts, and purchases — using each platform’s own events and hooks rather than guessing at timing with generic click listeners. That means accurate item IDs, prices, and quantities on every event, and no double-firing between your plugin’s own tracking (if any) and what we add.

    What do we actually get at the end — just configuration, or documentation too?

    Every project ends with a written documentation file listing every event we implemented — what triggers it, what parameters it carries, and where the code lives. This isn’t optional paperwork; it’s what lets your team (or your next developer, or us on a future engagement) know what’s tracked without reverse-engineering the site. A GA4 setup with no documentation is a liability the moment the person who built it moves on.

    Do you verify that tracking actually works, or just configure it and leave?

    We verify every single event live — in GA4 DebugView and by inspecting the actual network requests — before calling anything done. This catches the failure mode we see constantly in audits: tracking that looks correctly configured in the code but never actually fires, because of a timing bug, a consent-gating issue, or a selector that doesn’t match the real markup. Configuration without verification is guesswork; we don’t ship guesswork.

    We think GA4 is already set up correctly — how would an audit help?

    Most sites we audit have GA4 “installed” in the sense that it’s collecting page views, but are missing a meaningful share of the events the business actually thinks it has — broken ecommerce events, forms that don’t fire on AJAX submission, duplicate installs counting page views twice, or consent gating that silently blocks tracking for a large share of visitors. An audit tells you exactly what’s live, what’s broken, and what’s missing, with no changes made until you approve a plan.

    Can you work alongside our existing developer or agency instead of taking over the whole site?

    Yes — most of our GA4 work is scoped and delivered without touching your site’s template or feature code at all. Tracking code lives in its own isolated files, separate from your theme or plugin logic, specifically so it doesn’t create merge conflicts or step on work your existing team is doing elsewhere.

    Do you offer white-label GA4 services for agencies?

    Yes — this is a significant part of our work. We deliver under your agency’s brand, with documentation and reporting formatted for you to hand directly to your client, and we’re comfortable working entirely behind the scenes on calls, in Slack, or in your project management tool of choice.

    Do you just report on the data, or tell us what to do with it?

    Both, if you want it. Reporting gets you accurate dashboards; Insights goes further — a monthly read on where your funnel is leaking and which segments are worth doubling down on, handed to you as a short list of what to act on next rather than a dashboard you have to interpret yourself.