AdSense alone is costing you 20–50% of potential revenue

Google AdSense is a self-serve ad network — easy to set up, single demand source. Google Ad Manager (GAM) is a professional ad server that lets you manage multiple demand sources simultaneously: AdSense, direct deals, and programmatic buyers via Open Bidding or Header Bidding. GAM typically increases RPM by 20–50% for publishers with 100K+ PV/month because you're running a competitive real-time auction across multiple buyers instead of relying on AdSense alone.

The audit covers: full GAM account structure review (network settings, ad units, inventory), Header Bidding / Open Bidding configuration check, AdSense + GAM integration verification, GDPR/TCF 2.3 consent signal audit, ads.txt & sellers.json review, and a prioritised PDF report + video walkthrough delivered in 3 business days.

It depends on your niche and audience geography. For EU publishers with GDPR consent issues, fixing TCF 2.3 alone (available without GAM) can recover 40–70% of lost revenue. For Open Bidding and Header Bidding to deliver meaningful uplift, 100K+ PV/month is typically the threshold. Our GAM Health Check (€199) will tell you definitively whether migration makes sense for your specific case.

For the audit we need read-only access to your GAM network and Google Analytics. For the Setup package, we need temporary editor-level access to implement changes. Your account remains under your full ownership and control at all times. We act as your independent advisor — not your account manager.

sellers.json is a file hosted at your domain root that lets advertisers verify they're buying from legitimate publishers. Without it, some programmatic buyers won't bid on your inventory, reducing CPM. It's critical for GAM setups using Open Bidding, where multiple SSPs need to verify your legitimacy. We include sellers.json setup in all packages.

In GAM with Open Bidding, broken consent signals affect every demand source — not just AdSense. EU/UK/EEA visitors without proper consent will see non-personalised ads across all SSPs, with CPMs 40–70% below personalised rates. Proper CMP setup with TCF 2.3 is arguably the highest-value single optimisation for European publishers. We configure and verify this in the Setup package.

Header Bidding (e.g. Prebid.js) runs a pre-auction in the browser before your ad server makes a decision, allowing more SSPs to compete for impressions. Open Bidding (GAM's server-side equivalent) is simpler to implement. For most publishers under 500K PV/month, Open Bidding via GAM delivers most of the uplift with far less technical complexity. We recommend the right approach for your traffic level in our audit.

GAM implementation varies by CMS. WordPress has plugins (GAM for WordPress, Ad Inserter) that handle tag injection cleanly. Wix and Squarespace have limited custom code injection, which can constrain Header Bidding but allows standard GAM tags. Webflow gives full control. We're familiar with all major platforms and adapt our implementation approach accordingly.

Our AdSense Setup service is for publishers who want to configure, fix, or optimise a standard AdSense account. Our Ad Manager Setup is for publishers ready to move beyond AdSense to a professional ad server with multiple demand sources. If you're not sure which is right for you, our Publisher Monetization service starts with a strategy audit to recommend the correct path.

For the GAM Health Check (€199): if we don't identify at least 3 specific, actionable revenue improvements in your setup — we refund in full, no questions asked. In practice, we have never issued this refund — every GAM account we audit has at minimum 3 fixable revenue leaks.

If your AdSense account is suspended, you cannot use GAM with AdSense as a connected demand source — the suspension applies across Google's ad systems. You would need to resolve the AdSense suspension first (which we can help with via our AdSense Setup service) before a GAM migration makes sense. We'll be honest about this during the audit.

Yes. GAM handles multilingual sites natively. Ad units can be targeted by language, geography, or custom key-values. For EU publishers with Polish, Ukrainian, Russian or English content, we configure targeting rules to match the right demand sources to the right content segments — which can improve CPM significantly compared to untargeted delivery.