500+ data and media teams
More reliable measurement,
without the technical complexity
With ServerSide, Sirdata deploys, hosts and connects your server-side GTM architecture to your marketing platforms.
ServerSide diagram: signals lost to browsers, iOS, adblockers, consent and the network are recovered, then routed to GA4, Google Ads, CRM, Meta, TikTok Ads and DV360.
(1) Data observed from Sirdata client cases using GA4 tracking.
+30%(1) of signals recovered
ServerSide by Sirdata
Measure better. Control better.
Activate better.
Get more reliable measurement without adding complexity for your teams.
-
Targeting
Measure reliably
Get a more complete view of journeys and consented conversions.
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Orchestration
Master your data flows
Control the data sent to each partner.
Signals from a website, an app and a consented environment pass through ServerSide, which redistributes them to analytics, targeting and CRM.
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Activation
Improve your campaigns
Feed your tools with more complete, better structured signals.
Configuration, European hosting, connections and monitoring:
our experts deploy an architecture suited to your environment.
ServerSide by Sirdata
We take on the complexity.
You stay in control.
We keep it running and keep it evolving.
- Privacy by design
- Performance
- Full control
- Compatible & scalable
How signals travel through ServerSide. On the left, five sources of loss: browsers with limited cookies, iOS and Safari with ITP, CMP and consent, adblockers and blocked scripts, network timeouts and drops. In the centre, four processing steps: reliable and exhaustive unblocking, enrichment into usable signals, validation of quality and consent, and smart routing. On the right, six destination platforms with native integrations: GA4, Google Ads, CRM, Meta, TikTok Ads and DV360.
ServerSide by Sirdata
What is your measurement worth?
Estimate in seconds the signal ServerSide could make usable again.
You are not seeing all of your visits
≈
visits a month never reach your tools
Visits recovered
with ServerSide
first-party CMP
per month, only with the visitor’s consent
measured today
Without ServerSide
With 
- measured today —
- recovered by ServerSide —
- recovered by a first-party CMP —
- out of reach —
What is this estimate based on?
- of your traffic is mobile
- In , roughly 1 visit in is never measured (ad blockers, private browsing, VPNs)
- ServerSide recovers 65 to 85% of it, depending on your setup
- of visitors accept cookies
The breakdown: ServerSide / first-party CMP
Of the invisible visits:
- come from visitors who accepted cookies, but whose signal never arrives ServerSide recovers them
- come from visitors who never saw your consent banner, blocked along with your scripts a CMP served from your own domain makes them reachable again
- will never be recovered: DNS-level blocking, pages where the script does not load
What about consent?
visits a month do reach your tools, but the visitor declines.
Every point of consent gained is worth ≈ extra measured visits.
We collect nothing without consent — which is why the design of your banner matters as much as your tagging.
A more reliable foundation
Better-fed targeting
From measurement to performance
A change of scale
This signal makes your reports and analyses more reliable. The impact grows markedly as soon as you run advertising.
This signal goes back to feed and improves the targeting of your campaigns.
With , this signal feeds your bids and audiences directly — that is where recovery turns into performance.
Your stack is exactly the case where ServerSide changes the scale: consume this signal continuously to optimise your campaigns.
Everything about ServerSide
Questions?
We have answers.
Infrastructure, hosting, ad blockers or consent:
the essentials before you get started.
GTM Server
What is a “secure first-party” cookie?
In more technical terms, these are HttpOnly cookies delivered by the server. Their characteristics prevent JavaScript from accessing them, offering protection against malicious actors.
What is the purpose of a CDN?
A CDN (Content Delivery Network) is designed to improve the loading speed and performance of websites by distributing content across multiple servers worldwide, reducing latency and providing faster access for users.
Who are your server hosts?
Our servers are managed by two providers: Scaleway — part of the French Iliad Group, and Hetzner, a German operator. We have set up redundant physical infrastructures with these hosts in France, Germany, and the Netherlands.
I have multiple containers, domains, and zones. How much does it cost?
Our GTM Server-Side offer includes unlimited domains and zones, as well as one container. Each additional GTM container is charged at €29 excl. VAT per month.
Is it complicated to set up?
No, there’s no need for a DevOps or code. Simply configure GTM for your site, set up your GTM DNS, and provide us with its ID. Sirdata takes care of the rest. If you already have a GTM deployed, setup is even quicker.
GTM Helper
How is GTM-HELPER more effective against ad-blockers?
GTM Server allows for URL rewriting of scripts, and GTM-HELPER complements this by automatically rewriting scripts, achieving optimal ad-blocker bypassing.
This also helps prevent the blocking of certain tools like a CMP or a chatbot.
How does GTM-HELPER improve consent management?
GTM-HELPER can block cookies managed by third-party tags that would otherwise be set by Google Tag Manager without consent.
What is the purpose of proxyfication?
Proxyfication enables the handling of personal data transfers outside the EU via a proxy.
This secures the transfers and data flows of European users’ personal data, ensuring regulatory compliance.
A dataLayer? What is it?
A dataLayer, or data layer, is a tool used to temporarily store data on user interactions with a website or application. It allows you to manage your data centrally, optimizing its use.
Is it complicated to set up?
No, there’s no need for a DevOps or coding. Simply configure your GTM tag’s DNS.