Analytics & Tracking

Debugging & Data Accuracy Fixes
Find and Kill the Lies in Your Data.for the UK

Built for UK owner-led businesses competing in British search. We check every step of your tracking, using Google's own testing tools and real visits. We find and fix the mismatches that hide which ads work, push ad platforms to bid on the wrong things, and make leadership stop trusting your reports.

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↓ 70%
Data Discrepancy Rate
95%+
Event Match After Fixes
3-8×
Faster Root Cause Diagnosis
90+
Accuracy Rescue Projects

Your Data Is Lying to You. Here Is How We Catch It in the UK.

Typical Lies We Uncover

  • GA4 shows 40% more conversions than Google Ads because of broken enhanced matching in the UK
  • Form submits counted 3 times because of duplicate tracking codes and page reloads in the UK
  • Purchase values that are always £0 or always the same test value in the UK
  • Events that only fire in Chrome and die silently in Safari or with ad blockers in the UK
  • Attribution that credits the thank-you page instead of the actual source in the UK

Our Diagnostic Method

We treat bad data like a mystery to solve. We use every tool we have (GTM preview, GA4 debug view, browser network logs, Tag Assistant, real visits, BigQuery, ad platform reports). We do not stop until we can explain every major mismatch and show a fix with before and after numbers in the UK.

Tools & Techniques We Use Daily

Client-Side Debugging

  • GTM Preview + Console: Step-through triggers, variable values, tag firing order, and consent state at the exact moment of interaction in the UK.
  • Network Tab + Payloads: Inspect every request to google-analytics.com, google.com/ads, graph.facebook.com, etc. Compare what was sent vs what the platform reports in the UK.
  • Tag Assistant / Google Tag Manager Debugger: Validate enhanced conversions, CAPI test events, and measurement protocol hits in the UK.

Server & Platform Side

  • GA4 DebugView + BigQuery: Real-time event stream inspection and historical queries to find cardinality, sampling, and filter issues in the UK.
  • Ad Platform Reports: Compare Google Ads, Meta, Microsoft delivery vs GA4 + CRM for the same click IDs and time windows in the UK.
  • Server Logs & CRM: Reconcile what actually happened in the database vs what the browser claimed was sent in the UK.

Our Debugging & Data Accuracy Process

01

Symptom Collection

Gather every complaint: "GA4 is 3x Google Ads", "Meta says we had 1200 leads but CRM only has 400", "ROAS looks impossible". Document the exact numbers and time periods in the UK.

02

Reproduce in Controlled Conditions

Use GTM preview, incognito, different browsers/devices, with and without ad blockers, and with consent granted/denied. Capture the exact events that fire (or do not) in the UK.

03

Root Cause Analysis

Compare payloads, client IDs, timestamps, values, and user data. Check triggers, variables, consent, redirects, caching, and server-side logic. Identify the smoking gun(s) in the UK.

04

Fix Implementation

Correct the GTM config, add missing parameters, fix dedup, adjust consent, repair server uploads, or remove the duplicate/broken tag that was polluting everything in the UK.

05

Before/After Validation

Run parallel measurement during transition. Prove with real traffic that the discrepancy is reduced or eliminated. Document the new expected numbers in the UK.

06

Monitoring & Guardrails

Set up volume and match-rate alerts. Add a lightweight weekly data quality check to the runbook so problems are caught early next time in the UK.

FAQ

Common questions

Answers for businesses in the UK.

Why does GA4 almost always show more conversions than Google Ads? expand_more
Common causes: missing or broken enhanced conversions, different attribution windows, internal traffic not excluded in one system, double-counting from reloads or duplicate tags, and modeled conversions in GA4 that Ads does not count the same way. We isolate which ones apply to you in the UK.
How do you prove which number is "correct"? expand_more
We reconcile against the source of truth (usually the CRM or payment database for actual closed revenue). We also run controlled tests with known clicks and known outcomes. The platform that matches the database most closely wins in the UK.
What is the single most common cause of "events not showing up in GA4"? expand_more
Consent Mode blocking + the tag firing before consent is granted, or a trigger that only fires on certain page templates or devices. Second most common: ad blocker + the measurement ID being treated as a tracker in the UK.
Can you fix data that was already collected wrong in the past? expand_more
Rarely in GA4 itself. We can sometimes correct future data and create better views in BigQuery, and we can upload corrected offline conversions to ad platforms. Historical GA4 reports usually stay broken; we document the cutoff date clearly in the UK.
How long does a typical accuracy rescue take? expand_more
Simple single discrepancy with clear symptoms: 3-7 days. Multiple platforms, long sales cycle, server-side, and messy historical data: 2-4 weeks. We always start with the highest-ROI fixes first in the UK.
Do you also audit the CRM data or only the browser events? expand_more
Both. Many "analytics problems" are actually CRM stage or value problems (deals marked won with £0, duplicate contacts, sales rep manually changing sources). We look at the full chain in the UK.
How do you handle ad blockers and privacy tools that deliberately break tracking? expand_more
We measure the real impact (what % of traffic is affected). We implement server-side where it helps, first-party endpoints, and we are honest with leadership about the untrackable percentage instead of pretending it does not exist in the UK.
What is the difference between debugView and real reports in GA4? expand_more
DebugView shows events in near real-time for the specific device/browser you are testing. It is not sampled the same way and does not go through all filters. We use it for diagnosis and then validate in unsampled BigQuery or the real reports after 24-48h in the UK.
Can one bad tag really destroy attribution for the whole site? expand_more
Yes. A duplicate purchase tag, a tag that fires on every pageview with a fixed value, or a redirect that strips gclid can poison bidding and reporting across channels. We have seen single tags cost tens of thousands in wasted spend in the UK.
How do you test fixes without breaking production for real users? expand_more
We use GTM environments or separate containers, feature flags for new event logic, and we often run the old and new in parallel with different event names or parameters during validation in the UK.
What tools do you always have open during a deep audit? expand_more
GTM preview, browser dev tools (Network + Console), GA4 DebugView, Google Tag Assistant, Meta Events Manager test events, the ad platform conversion reports, BigQuery, and usually a spreadsheet for side-by-side reconciliation in the UK.
How often should a company re-audit their tracking accuracy? expand_more
Light health check quarterly. Full deep audit whenever you change major platforms, do a site redesign, add a new domain or checkout flow, or when reported numbers start diverging again. We leave you with the checklist to run yourself in the UK.
Do you also fix the "why the numbers look weird in the dashboard" problems? expand_more
Yes. Many accuracy issues are actually reporting configuration (wrong attribution model, bad segments, currency mix-ups, internal traffic not filtered). We fix both the collection and the interpretation layer in the UK.
What does success look like at the end of a data accuracy project? expand_more
Leadership can look at the dashboard and the CRM and the numbers are within a documented tolerance. Marketing trusts the ROAS numbers enough to make budget decisions. Sales stops complaining that "the leads from ads are fake" in the UK.
What if the root cause is actually in the CRM or ad platform settings, not our tags? expand_more
We still find it and fix or document it. We have fixed "analytics problems" that were actually Salesforce stage automation, Google Ads conversion action misconfiguration, or Meta pixel dedup settings. The scope is the entire measurement chain in the UK.

Ready to stop making decisions on numbers that are quietly lying in the UK?

Get a free data accuracy audit. We will find the biggest discrepancies and show you exactly how to make the data trustworthy again in the UK.

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Marketing from $500 USD a month

Month to month, no commitment. One fee covers the pages, the search and ad work and the tracking. Ad spend is separate and stays in your own accounts in the UK.

Starting at

$500 USD per month

Free to cancel with 1 month's notice. Tell us what you sell and where. We come back with what the first month would fix in the UK.

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What $500 a month covers

  • Pages

    Included

    Pages built around the searches your buyers actually type in the UK.

  • Search and ads

    Included

    Search and ads aimed at people ready to enquire in the UK.

  • Tracking

    Included

    Calls, forms and bookings tagged to the search, ad or page behind them in the UK.

Our team

The same people on the audit and on the work

Martin writes every audit and takes the first call. The same team stays on the account. 160+ businesses since 2010 in the UK.

Martin, Founder, strategy and audits in the UK

Martin

Founder, strategy and audits

Writes every audit and takes every first call. On your account from day one, running growth for SMEs since 2010 in the UK.

Yoana, Social and app development in the UK

Yoana

Social and app development

Shapes social strategy and builds practical app experiences that turn attention into action in the UK.

Mike, SEO in the UK

Mike

SEO

Owns technical, local and content SEO so the right buyers find you when demand is highest in the UK.

Robert, Paid media in the UK

Robert

Paid media

Plans and manages paid search and social campaigns around qualified leads in the UK.

Elmer, Analytics in the UK

Elmer

Analytics

Connects tracking, attribution and reporting so decisions are based on revenue-quality data in the UK.

Dino, Design in the UK

Dino

Design

Creates clear brand and conversion-focused design across landing pages, campaigns and product experiences in the UK.

Certified and experienced

Certified where it matters. Accountable for the outcome in the UK.

Verified platform knowledge, 25+ years of hands-on experience, and an operating track record since 2010 in the UK.

Google AdsCertified
Google AnalyticsCertified
Google Tag ManagerCertified
Operating since 2010Proven experience