SERVER-SICE GTM
& SERVER-SIDE TRACKING
SERVER-SICE GTM
& SERVER-SIDE TRACKING
Browser-based tracking is getting less reliable every year. Ad blockers, ITP, consent mode restrictions, and third-party cookie deprecation are all chipping away at the data your client-side tags collect. At Vizionality, we implement server-side Google Tag Manager so your tracking runs through infrastructure you control, your data quality improves, and your ad platforms get the signals they need regardless of what’s happening in the browser.
OVERVIEW
SERVER PROVISIONING AND CONFIGURATION
We provision your server-side GTM container on Google Cloud or via Stape.io, configure your custom domain, and set up the transport URL so your client-side container is routing events to your own infrastructure instead of firing directly to third-party endpoints.
SERVER-SIDE TAG MIGRATION
We migrate your GA4, Google Ads, Meta, and other tags from client-side to server-side, validating that data is passing correctly at each step. Your existing tracking keeps working throughout the migration with no gaps in data collection.
CONVERSIONS API AND ENHANCED CONVERSIONS
We connect your server-side container to Meta Conversions API and Google Ads Enhanced Conversions so your ad platforms are receiving conversion signals that bypass browser restrictions entirely, improving match rates and giving smart bidding more complete data to work with.
First-Party Data and Cookie Durability
We configure first-party cookies set from your server so they persist beyond the limits browsers impose on client-side cookies. ITP restrictions and browser privacy settings can cut your cookie lifespan down to 7 days or less. Server-set cookies restore that durability so your attribution and audience data stays intact.
OVERVIEW
HOW WE DO
SERVER-SIDE TRACKING
We start by understanding where your client-side tracking is falling short. We look at your current GTM setup, which tags are firing browser-side, how ad blockers and browser restrictions are affecting your data, and what your ad platforms are missing as a result.
Before moving anything server-side, we document your existing tag implementation so nothing gets lost in migration. We identify which tags will benefit most from server-side routing and flag any firing issues that need to be resolved before we build on top of them.
We set up your server-side GTM container on Google Cloud or via Stape.io, configure your custom domain, and set up the transport URL so your client-side container is routing events through your own infrastructure instead of firing directly to third-party endpoints
We migrate GA4, Google Ads, Meta, and any other tags from client-side to server-side, validating that data is passing correctly at each step. Your existing tracking keeps working throughout the migration with no gaps in data collection.
We confirm events are routing correctly, check data integrity against your client-side baseline, set up first-party cookie configuration, and document the full server container so your team knows exactly what was built and how to maintain it.
Find out why your server-side implementation can’t be trusted.
Browser-based tracking is getting less reliable every year. Ad blockers filter out requests to known third-party endpoints, ITP restricts how long client-side cookies last, and third-party cookie deprecation is removing signals your ad platforms have depended on for years. If your tags are firing client-side, all of these factors are chipping away at your data whether you can see it or not. Server-side tracking routes events through your own infrastructure so those interceptions no longer apply.
If you are running significant paid media spend and need accurate conversion signals, if your GA4 data looks lower than expected and you suspect ad blockers are the cause, if you are dealing with ITP-related attribution problems, or if you want more control over what data gets sent to third-party platforms, server-side GTM is worth implementing. It is not just a technical upgrade, it is a data quality decision that directly affects how well your ad platforms can optimize.
A complete server-side setup covers auditing your current client-side implementation, provisioning your server container on Google Cloud or Stape.io, configuring your custom domain and transport URL, migrating your GA4, Google Ads, Meta, and other tags from client-side to server-side, setting up first-party cookie configuration, and validating data integrity against your client-side baseline before handoff.
Yes. We document your full client-side setup before migrating anything so nothing gets lost in the process. Your existing tracking keeps working throughout the migration and we validate at each step that data is passing correctly before cutting anything over. The goal is to improve your data quality without creating gaps along the way.
Standard GTM runs in the browser and is subject to ad blockers, browser privacy restrictions, and ITP cookie limitations. Server-side GTM runs on infrastructure you control, routes events through your own domain, and sets first-party cookies that persist beyond what browsers allow for client-side scripts. It gives you more reliable data, better cookie durability, and more control over what gets sent to third-party platforms.
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