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    • Attribution Health Check

    Recover your lost conversions

    Fix the attribution gaps that make GA4, Meta and Google Ads disagree. Get complete, trustworthy data across every domain, redirect and hand-off.

    Get Your Free Attribution Health Check

    The hidden cost of modern B2C architectures

    You've built a sophisticated customer journey. Multiple touchpoints. Hosted checkouts. Booking engines. Mobile apps. Each component best-in-class. But there's a problem.

    Every redirect drops critical attribution data. Every domain crossing breaks user sessions. Every server-side conversion creates duplicates or goes unmatched. Your Stripe checkout kills the gclid. Your booking engine loses the fbclid. Your CRM webhooks can't link back to the original campaign.

    The result? GA4 shows 1,000 conversions. Meta shows 600. Google Ads shows 750. Your CFO trusts none of them. You're optimising on guesswork, wasting budget on the wrong channels and missing the complete picture of what actually drives revenue.

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    Fix hosted checkout attribution

    Stop losing conversions at the payment step

    Your Stripe/Adyen Checkout or payment gateway redirect is killing your attribution. The moment customers leave your domain, you lose the gclid, fbclid and session context that links the conversion back to its source.

    We fix this with:

    • Systematic click-ID capture before the redirect

    • Trusted domain decoration to maintain identity

    • Server-side event enrichment with preserved context

    • Deduped delivery to both GA4 and ad platforms

    The result: Your payment completions correctly attribute back to their campaigns, even when finalised on a different domain.

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    Unify cross-domain journeys

    Connect every touchpoint in your customer journey

    Your marketing site, booking engine, customer portal and mobile app all live on different domains. Each crossing breaks the user session. Each hand-off loses attribution context.

    We fix this with:

    • First-party identity that persists across domains

    • Automatic session bridging in GA4 Measurement Protocol

    • Real-time identity resolution across touchpoints

    • Canonical user profiles that merge anonymous and known IDs

    The result: A complete, unbroken view of the customer journey from first click to final conversion, regardless of how many domains they cross.

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    How we fix it

    From signal loss to perfect attribution in 30 days

  • 1. Consent-native pixel

    Our lightweight pixel captures and persists critical browser state before it's lost. Click IDs, UTMs, session context – all preserved across every redirect and domain change.

  • 2. Stateful enrichment

    Our stateful API enriches every event with the complete user journey. First touch, last touch, user traits – automatically added at ingestion. No custom code. No complex functions.

  • 3. Deduped delivery

    We deliver enriched events to GA4, Google Ads and Meta with deterministic deduplication. Same user, same conversion, delivered once. Your platforms finally agree.

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    The 30-day timeline

    Fast, measurable results

  • Day 0: Baseline

    Capture your current attribution gaps. Document the GA4 ≠ Ads delta. Measure click-ID survival rates.

  • Week 1: Diagnose & Accept

    Receive your Attribution Health Check report. Review findings. Sign off on the implementation plan.

  • Week 2: Pilot & Accept

    Deploy the Fidero pixel. Configure server-side adapters. Verify consent mapping and data flow.

  • Week 3: Validate & Accept

    Monitor production data. Watch your kill-metrics improve. See platforms start to converge.

  • Week 4: Prove & Decide

    Review your before/after pack. Measure the lift. Make your decision based on proven results.

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    What we'll measure

    Concrete proof, not promises

    We track specific metrics that prove attribution recovery and data quality improvements:

    • Internal Attribution Coverage: Conversions with complete context ÷ total conversions
    • Meta Match Lift: Improvement in matched conversion percentage vs. baseline
    • GA4 Session Link Rate: MP events that join existing web sessions
    • GA4 User Link Rate: MP events that link to known users
    • Google Ads Import Success: Accepted imports within 48 hours
    • Duplicate-Block Rate: Successfully suppressed duplicate conversions

    Every metric is measured, documented and reported. Full transparency. No black boxes.

    Why Server-GTM isn't enough

    Server-side GTM was a good first step. But without these capabilities, you're still losing conversions.

    What Server-GTM can't do without heavy custom work:

    • Maintain a canonical identity store with anonymous → user merging
    • Co-ordinate client + server delivery with deterministic deduplication
    • Queue and replay events per-integration based on consent
    • Provide managed adapters that handle API changes automatically
    • Generate signed first-party IDs with cross-tab synchronisation

    Download our detailed comparison →

    FAQs

    Quick answers to common questions

    Is this really zero-code for the audit?

    Yes. The Attribution Health Check uses read-only access and browser developer tools. No code changes required.

    How do you handle Consent Mode v2?

    Our pixel automatically captures consent signals from your CMP and sends appropriate Google Consent Mode parameters. The server enforces consent universally, ensuring every destination respects user choices.

    What about our existing Server-GTM setup?

    We can work alongside or replace it. Most clients migrate gradually, proving value before decommissioning legacy tags.

    Do you support Shopify/WooCommerce/custom platforms?

    Yes. Our pixel works on any platform that allows JavaScript. For Shopify, we have a pre-built pixel app for even faster deployment.

    What's the difference between this and Meta CAPI?

    Meta CAPI is just one destination. We're the complete pipeline that captures, enriches and delivers data to Meta CAPI, Google Ads, GA4 and any other destination – with guaranteed consistency.

    How does deduplication actually work?

    We use deterministic keys (transaction_id, event_id) and time windows to ensure each conversion is counted exactly once, regardless of whether it's sent from client, server or both.

    Ready to fix your attribution?

    Stop guessing which channels drive revenue. Get a free diagnosis of your attribution gaps and a proven plan to fix them.

    Get Your Free Attribution Health Check
    Book a 20-min diagnosis call
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