Server-side routes your data through your own server (server-side GTM, first-party subdomain) before GA4, Ads, Meta…
Result: data less affected by blockers and browser restrictions, and therefore more accurate.
Better attribution → more effective algorithms → improved ROAS and CPA.
Hybrid approach (client + server) recommended + fine-grained GDPR compliance.
Conventional tracking is no longer enough.
Blocked by ad blockers
A growing share of your data is never collected on the browser side.
Limited by browsers
Safari, Firefox and Chrome are increasingly restricting client-side tracking.
The end of third-party cookies
The historical tracking model is collapsing, a lasting alternative is needed.
Prone to errors
Technical errors and poorly managed consents distort your measurements.
You take back full control of your data.
Server-side tracking routes data through your own server before sending it to GA4, Google Ads, Meta, TikTok or your CRM.
- Via a server-side Google Tag Manager container
- Hosted on a cloud or a dedicated solution (Stape, Addingwell…)
- Via a first-party subdomain (e.g. track.votresite.com)
Client-side, server-side or hybrid?
Three approaches to tracking, and what they concretely change for your data and your marketing.
| Criterion | Client-side (conventional) | Server-side | Hybrid — recommended |
|---|---|---|---|
| Collection reliability | Medium | High | Maximum |
| Ad-blocker resistance | Low | High | High |
| Browser restrictions (Safari ITP…) | Suffered | Bypassed | Bypassed |
| Cookie lifespan | Short (≈ 7 days on Safari) | Long (first-party) | Long |
| GDPR and consent control | Limited | Granular | Granular |
| Attribution quality | Degraded | Good | Optimal |
| Setup | Simple | Technical | Technical |
| Best for | Simple showcase sites | E-commerce, paid media | Demanding data-driven organisations |
Our recommendation
a hybrid approach that combines the best of both worlds — maximum collection and reliability, without sacrificing compliance.
Reliable data, more effective marketing.
More reliable data
Less affected by blockers and restrictions: an accurate view of your real performance.
Higher-performing marketing
Better conversion attribution, more effective algorithms, improved ROAS and CPA.
GDPR compliance & control
Filter, anonymise, honour consents precisely and document compliance.
A controlled rollout, in three stages.
Server-side architecture
Server-side GTM container, first-party subdomain and securing of the data flows.
Connection to the platforms
Server-side sends to GA4, Google Ads, Meta, with deduplication and event consistency.
Compliance & consent
Integration with your CMP for compliant, controlled collection.
Frequently asked questions
Is server-side tracking GDPR-compliant?
Yes, provided it's set up correctly. Server-side even allows better control of data and consents.
Does server-side replace client-side?
No. The best approach remains hybrid: combining client-side and server-side to maximise collection and reliability.
Is it compatible with Google Analytics 4?
Yes, server-side tracking is perfectly compatible with GA4, and even strongly recommended.
Is it only for large companies?
No. It's particularly relevant for SMEs and e-commerce businesses that depend on digital marketing.
Who is server-side particularly aimed at?
E-commerce sites, businesses that depend on SEA/paid media, those subject to strong GDPR requirements and data-driven organisations.
Let's discuss your project.
Timothy or Bryan replies within 24h, no jargon, with a clear action plan.