The Problem
Client-side tracking is broken.
Traditional Google Tag Manager runs entirely in the visitor's browser. That means every tag, every pixel, every beacon competes for browser resources — while you lose data and performance.
Pages slow down
Every client-side tag loads synchronously or asynchronously in the browser, adding render-blocking weight and increasing Time-to-Interactive.
Ad blockers kill your data
Up to 30% of your traffic is never tracked because browsers and extensions silently block client-side analytics requests.
Visitor data leaks
Third-party scripts have direct access to the DOM and can exfiltrate user data to vendors you haven't audited.
The Solution
Server-side GTM moves tracking off the browser and onto a secure server you control.
How It Works
From inquiry to live tracking in 48 hours.
We handle the infrastructure so you focus on your product. No command line, no Docker, no cloud configuration required.
Fill the inquiry form
Tell us about your setup — domain, current GTM container ID, estimated monthly event volume, and your goals. Takes under 3 minutes.
We deploy your container
Our team provisions a dedicated GTM server container on enterprise-grade infrastructure within 24–48 hours. No shared tenancy.
Connect your domain
Add a CNAME record pointing your chosen subdomain (e.g. gtm.yourbrand.com) to our endpoint. SSL is provisioned automatically.
Go live & track cleanly
Update your GTM web container's server-side transport URL. Start getting accurate, complete data from day one — no more ad blocker gaps.
Features
Everything included. Nothing to configure.
Firstag is a complete, end-to-end managed service. We provision, configure, and maintain everything — you just point your domain and go.
Managed Infrastructure
We handle server provisioning, scaling, monitoring, and patching. You never SSH into anything.
Custom Domain & SSL
Use your own subdomain (e.g. metrics.yourbrand.com). TLS certificate is auto-provisioned and auto-renewed.
Data Privacy Ready
Server-side GTM means third-party scripts never run in your visitor's browser. You decide what data flows where.
Lightning-Fast Response
Our endpoints are deployed on globally distributed infrastructure with sub-50ms median response times.
99.9% Uptime SLA
We monitor your container 24/7. Guaranteed uptime with automatic failover and real-time incident alerts.
Expert Setup & Support
We configure your tags, triggers, and variables. Ongoing support via email for any GTM questions.
Pricing
Simple, transparent pricing.
No hidden fees, no setup costs, no surprises. Everything is included in one flat monthly rate.
Billed monthly. Cancel anytime.
Need more than 5M events/month? Contact us for a custom quote.