Most businesses are making decisions on incomplete data - blocked by ad blockers, broken by consent restrictions, or misconfigured from day one. TagNexus builds analytics infrastructures that collect clean, complete, compliant data. Every time.
What We Do
From dataLayer architecture through server-side tagging and consent management - we design, build, and validate the complete measurement stack.
Google Tag Gateway, reverse proxy, and server-side GTM - the complete first-party data collection stack that works regardless of ad blockers or browser restrictions.
Consent Mode v2 Basic and Advanced - implemented correctly, with proper tag-level consent checks, CMP integration, and validation across all consent states.
Event taxonomy, Solution Design Reference documentation, and full developer handover - so your tracking is built on a structured, maintainable foundation from day one.
Meta CAPI, Google Ads Enhanced Conversions, TikTok Events API - server-side ad platform integration with proper event deduplication so your campaign data is complete and reliable.
Custom JavaScript, regex triggers, and dataLayer-driven tag architecture - built for enterprise scale without the fragility of auto-event triggers and built-in variable reliance.
Full audit covering tag firing, dataLayer integrity, consent compliance, and attribution accuracy - validated with ObservePoint, Tag Inspector, and Chrome DevTools.
The Stack
Every engagement is built around the same principle - data should flow cleanly from user interaction through to your BI stack, with no gaps and no guesswork.
Scripts and data requests served through your own domain - invisible to blockers and browser filters.
Longer cookie lifespans, more reliable user identification, and better attribution across sessions.
Every tag in both the client and server container respects the same consent state - no compliance gaps.
Meta CAPI, Google Ads Enhanced Conversions, TikTok Events API - complete conversion signals independent of the browser.
Problems We Solve
These are the most common reasons businesses come to us. If any of these sound like your situation - we should talk.
Ad blockers, browser restrictions, and ITP are silently stripping your data every day.
Tags fire on all users regardless of consent status - a GDPR risk you may not know about.
Years of accumulated tags, no documentation, conflicting triggers and nobody knows what fires.
Reports contradict each other and decisions get made on gut feeling instead of data.
How We Work
Every engagement follows the same four-phase structure - from discovery through to QA sign-off and documentation handover.
Full audit of your existing GTM container, GA4 setup, consent implementation, and dataLayer - so we understand exactly what we are working with before touching anything.
Measurement strategy, event taxonomy, dataLayer schema, and Solution Design Reference - all agreed and documented before any implementation begins.
Full stack built in staging - GTM, sGTM, GTG, consent, vendor tags - coordinated with your dev team and tested thoroughly before anything goes live.
Every event validated with ObservePoint, Tag Inspector, and Chrome DevTools. Clean QA report and full handover documentation included as standard.
Results
A real enterprise client engagement - details anonymised.
A large B2B enterprise was losing up to 35% of analytics data due to ad blockers and browser privacy restrictions. Their consent implementation was also misconfigured - GA4 was firing on all users regardless of consent status, creating a GDPR risk they were unaware of.
We implemented the full stack - Google Tag Gateway via reverse proxy, server-side GTM with first-party cookies, and Consent Mode v2 with OneTrust. The entire dataLayer was redesigned from scratch to support proper event-level consent signals.
Full analytics audit, dataLayer gap analysis, measurement plan and SDR documentation.
Reverse proxy config, Google Tag Gateway deployment, sGTM container setup.
Consent Mode v2, CMP integration, dataLayer rebuild and dev coordination.
Full validation, staging to production, clean data confirmed in GA4 and BigQuery.
Why TagNexus
7 years in digital marketing before analytics. We understand what data teams need to make decisions.
Client GTM, reverse proxy, GTG, sGTM, Consent Mode Basic & Advanced - we do all of it, not just the easy parts.
Large-scale enterprise implementations and focused consultancy - we operate at both levels without compromising quality.
We validate every event, every trigger, every payload before sign-off. Accuracy is the baseline, not a bonus.
Our Clients
Industries
FAQ
If your question is not here, just reach out - we are happy to talk through your specific situation.