Server-side GTM · Stape.io
Browser-based tracking is losing 20–40% of conversion events to iOS privacy, ad blockers, and cookie restrictions. Server-side GTM via Stape.io routes your data through your own server — bypassing browser blocks entirely. Here's exactly what's involved.
Tell me your platform, monthly ad spend, and audience. I'll tell you how much you're likely losing and whether server-side tracking is the right investment.
Get a free assessment →Typical setup: 5–7 business days · from €550
Instead of loading tracking scripts from googletagmanager.com — a domain every ad blocker recognises — your GTM server runs on data.yourdomain.com. Ad blockers can't block a domain that looks like your own site. Stape.io handles the server infrastructure — no Google Cloud account needed.
Safari's Intelligent Tracking Prevention caps JavaScript-set cookies at 7 days — sometimes 24 hours. For returning customers who bought 2 weeks ago, they're completely invisible to attribution. Server-set cookies bypass this restriction entirely — extending cookie lifetime to 400 days and restoring returning customer attribution across your entire audience.
Your web container still collects events from the browser. It forwards them to your server container, which then sends them to GA4 and Meta — through a first-party endpoint that blockers can't intercept. Every platform receives the same clean, enriched event data regardless of what the visitor's browser is doing.
Before go-live, I run a complete validation: browser events vs server events, purchase counts vs Shopify orders, EMQ scores in Meta Events Manager. You see the before and after comparison in writing. If the numbers don't match, we don't go live.
Server-side tracking is the right investment if you match at least one of these:
Share your website and ad setup. I'll estimate the data loss and tell you whether server-side tracking makes financial sense for your situation — before you spend anything.
Get a free assessment