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A tracking audit is the starting point for every analytics engagement we deliver. Before building anything new, we need to understand what is already in place — what is accurate, what is broken, and what is creating compliance or data quality risk. Skipping this step is the single most common reason analytics implementations fail to deliver useful data. Our tracking audits cover the full measurement stack: GTM containers, GA4 or Universal Analytics properties, conversion pixels, consent management, and data layer implementation. We work through each systematically and produce a written report with prioritised findings and recommended remediation actions. What a Hellenic Technologies tracking audit covers:
  • Tag inventory — Every tag in your GTM container is catalogued and cross-referenced against active marketing platforms. Orphaned tags, duplicate pixels, and misfiring triggers are identified and flagged.
  • Data accuracy — GA4 session counts, event volumes, and conversion figures are compared against server-side request logs and CRM data where available. Discrepancies above threshold are investigated to root cause.
  • Missing events — We review your site against your business goals and identify events that should be tracked but are not — form submissions, eCommerce funnel steps, scroll depth, video engagement, and more.
  • Duplicate triggers — GTM containers accumulate over time. We identify duplicate tag firings, overlapping trigger conditions, and variables that return incorrect values.
  • Consent gaps — We audit your CMP configuration against Consent Mode v2 requirements and GDPR Article 7 standards. Tags firing without valid consent are flagged as high-priority remediation items.
  • Cross-domain and subdomain tracking — If your funnel spans multiple domains or subdomains, we verify that sessions are correctly stitched and that GA4 client IDs are not being lost at domain boundaries.
  • eCommerce tracking — For retail and marketplace clients, we validate product impression, add-to-cart, checkout, and purchase events against actual transaction data from your platform.
Audit reports are delivered as structured documents with a severity rating for each finding (critical, major, minor), a clear explanation of the impact, and a specific recommended fix. Most audits are completed within five business days.