Start recovering lost revenue
with Server-Side GTM for free

Server-side GTM brings back long-lasting first-party cookies. Addingwell runs the infrastructure for you.

Try for free no credit card required. Plug&play with your existing GoogleTagManager or Shopify setup. First 100,000 requests free.

Trusted by + 2000 companies

Your ads are optimizing on incomplete data

If you’re searching for GTM server side, you already know something’s off.

• Google Ads doesn’t match backend revenue
• Meta performance fluctuates without explanation
• Smart Bidding feels unstable
• Retargeting pools are shrinking

It’s clear that you have a signal problem, causing you to lose ad revenue.

Server-Side GTM isn’t optional anymore

Client-side tagging is no longer a reliable infrastructure. Server-side tagging restores your control with:

• More durable cookies
• Higher match quality
• Stronger optimization signals

This is how you protect your ROAS.

Recover lost conversions with Addingwell

Addingwell removes the technical risk. Here’s what you get:

• Fully managed server-side GTM hosting
• First party in multi-domain & multi-Region
• Architecture Anti-Adblockers
• Architecture Anti Apple's ITP
• Conversion API for Meta, Tiktok, Pinterest, Snapchat...
• Google Enhanced Conversions
• Omnichannel Event Ready
• GDPR-ready with Consent Mode and monitoring
• Google Tag Gateway Ready
• Human Support & Alerting

This is how you protect your ROAS.

Transparent Pricing
for All Your Needs

Kickstart your journey with our free plan. As your needs grow, switch to our Pay as you go or Enterprise plan for advanced features and premium support.

Free Plan

Test Everything Addingwell allows, with this 100,000 requests free plan.

Try for free
Pay as you go

Best infrastructure and toolset for your server-side tracking strategy. The go-to solution.

from 90€/mo

Estimate your cost
Enterprise

High volumes, Security, compliance, and flexible deployment.

Talk to sales
Upgrade when you’re ready. No long-term commitment.

What happens after migration

Here’s what are clients typically see:

+152% Google Ads orders
+15% more data sent to Meta
4-second faster page load
43% more return visits on Safari


When platforms receive better signals, bidding improves.
When attribution improves, decisions improve.
When data improves, budgets scale.

Transparent infrastructure. Backed by Didomi.

Server-side tagging gives you control over:

• What data leaves your domain, your GTM container stays yours
• PII redaction & hashing
• Consent-aware event forwarding
• Regional hosting
• Data flow is visible and setup is never locked in

Addingwell manages the hosting and monitoring. You keep full control.
And now, as part of Didomi, a global leader in consent and privacy infrastructure, the foundation is stronger than ever.

You already know it’s time

You can read another blog post about server-side GTM. Or you can see what your data looks like when it actually works.

Start free with 100,000 requests, a custom domain, and automated tag health monitoring.

Start your free trial
Free sandbox before commitment. No long-term contract. Cancel anytime.