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
Most analytics setups collect some data. We build systems that collect the right data - reliably, compliantly, and in a way your marketing team can actually act on.
We design your dataLayer from scratch - a clean, documented foundation that captures exactly what your business needs. No guesswork, no gaps, no surprises six months later.
Consent Mode v2 Basic & Advanced, CMP integration, and first-party infrastructure - compliant with GDPR and CCPA without losing measurement quality.
Google Tag Gateway and reverse proxy route analytics through your own first-party domain - invisible to ad blockers, recovering data that would otherwise be permanently lost.
Clean data flowing into Looker Studio and BigQuery dashboards that your marketing team can read and trust. Data that connects directly to business decisions.
Our Stack
Very few consultancies implement this full stack end to end. We do it on every enterprise engagement.
Consent signals flow through every layer with GA4 behavioural modelling preserved for non-consented users.
Virtual pageviews, consent state persistence, and accurate event tracking on React, Vue, and Angular sites.
Meta Conversions API, Google Ads, and other platforms receive clean, enriched first-party event data from the server.
Every implementation validated with ObservePoint, Tag Inspector, and Chrome DevTools before sign-off.
Services
From initial architecture through to ongoing maintenance - we handle the full lifecycle.
Client-side container setup, custom JavaScript, regex triggers, and enterprise tag management done properly.
Full sGTM infrastructure, Google Tag Gateway, and reverse proxy for complete first-party data collection.
GA4 setup, UA migration, event taxonomy, custom dimensions, and BigQuery export done correctly.
Basic and Advanced implementation with CMP integration. GDPR and CCPA compliant without breaking measurement.
Event taxonomy, SDR documentation, and full dev team handover with implementation validation support.
Full audit covering tag firing, dataLayer integrity, consent compliance, and attribution accuracy.
How We Work
We keep every engagement clear and structured - so you always know where you are and what comes next.
An honest conversation about what you are trying to measure, your current setup, and where the gaps are. No sales pitch.
Full SDR and tracking specification documented before implementation. Your dev team gets everything they need upfront.
Full stack built in staging - GTM, sGTM, GTG, consent, vendor tags - coordinated with your dev team and tested thoroughly.
Every event validated with ObservePoint, Tag Inspector, and Chrome DevTools. Clean QA report and full handover documentation.
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 Advanced 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 Advanced, OneTrust 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
I've been working with Hitesh for over 4 years, and his expertise has been invaluable in implementing GA4 and GTM. His strong technical skills and thorough documentation make the process seamless and efficient.
Industries
FAQ
If your question is not here, just reach out - we are happy to talk through your specific situation.