Website Tracking & Martech Audit

For marketing leads, growth teams & agencies managing conversion tracking, attribution & privacy compliance

Trust every number your marketing runs on.

Lumnio checks your live site the way a real customer uses it - then shows which marketing and analytics tools are actually working, which are quietly failing, and what's tracking people before they ever agree to it.

Observes what a real browser does - validating rendered interactions and network beacons against your tracking setup, with zero code installation.

Single page, read-only - sees your setup, never changes it.

Sees your setup, never changes it  ·  No card required  ·  Results in minutes

Three steps to clean data

No manual configuration. No browser extensions. Point Lumnio at a URL and get a complete audit in minutes.

Start

Point Lumnio at any public URL - that's all a site audit needs, no setup. For the GA4 and GTM audits, connect your Google account in a couple of clicks; it stays read-only, so Lumnio only ever looks, never changes anything.

Scan

Lumnio opens your live site in a real browser and uses it like a customer would - clicking, opening menus, moving through pages - watching exactly which tools respond and what they capture.

Report

Get a boardroom-ready executive summary and an interactive findings dashboard - every issue ranked by business impact, with the evidence behind it - ready to share in one run.

Four answers, one audit

The questions your dashboards can't answer - because the gap never shows up as a number.

Is your data actually being captured?

Lumnio tests every click like a real visitor, so you know your conversion and revenue events truly fire - not gaps you'd never spot in a report until the numbers are already wrong.

See every marketing tool you pay for

A full inventory of the analytics, advertising and tracking tools on your site - including ones nobody remembers adding - and which are actually sending data versus just loading and doing nothing.

Stay on the right side of consent

See what each tool records and what starts tracking a visitor before they ever agree - the details that quietly turn into a compliance problem if nobody's watching.

Make your ad spend count

Your GA4 and GTM setup checked end to end, so the ad platforms you bid on optimise against complete, correct data - not a half-configured signal that wastes budget.

If it's tracking your visitors, Lumnio sees it

Analytics, advertising, session recording, testing, monitoring and customer-data platforms - plus any unknown third party quietly loading on your pages.

Analytics & tags
Google Analytics 4 Google Tag Manager Adobe Analytics Consent Mode Segment Tealium
Advertising pixels
Google Ads Meta TikTok LinkedIn Microsoft Pinterest Snapchat Reddit
Session recording
Microsoft Clarity Hotjar FullStory Contentsquare LogRocket
Customer data & engagement
Salesforce Personalize Braze Klaviyo Amplitude Mixpanel
Testing & monitoring
Optimizely VWO AB Tasty New Relic Sentry Qualtrics and 30+ more

Every audit, one engine

Run any one on its own, or all of them - each produces its own standalone, downloadable report. The site audit is where the tracking and martech findings above come from.

Site audit report - tracking coverage health ring and verdict
01

Site Audit

A real browser works through your live pages like a customer - proving which interactions actually fire tracking, listing every marketing tool on the page, and flagging what runs before consent, with the evidence kept behind every finding.

Site audit
GA4 configuration audit report - config health score and checks
02

GA4 configuration

Audits property settings, key events, data retention, attribution and the revenue loop - conversion value, Google Ads import and reporting identity - against best practice.

GA4 audit
GTM container audit report - container health score and findings
03

GTM container

Reconciles tags, triggers and variables - Conversion Linker, Enhanced Conversions, consent mode and marketing pixels - so your ad spend optimises on complete data.

GTM audit

Adobe Analytics & Launch

Per-element attribution report

04

Adobe Analytics & Launch

Read straight from the live page, not Adobe's admin API: which Direct Call Rules actually bind to each interaction, which calls reach Launch but send no beacon, and which clicks Adobe can't attribute at all - plus the AppMeasurement values (tracking server, currency, cookie domains) and consent state the page itself is running with.

Adobe attribution audit

Two reports, every stakeholder covered

Every audit produces both - a brief the board can read and the detail your team can act on.

Executive

Executive Summary

A plain-English brief for decision-makers: what's working, what's at risk, and what it means for the business - each finding ranked by impact, no jargon required.

  • Impact-ranked findings
  • Plain-English verdicts
  • Visual evidence screenshots
Technical

Findings Dashboard

The full interactive detail for the people who fix it - every tool, every tracked interaction and the exact evidence behind each finding, filterable by severity and page.

  • Filter by severity & page
  • Tool-by-tool breakdown
  • Captured evidence for every event

Simple, transparent pricing

Five free scans, no card required. For ongoing access, talk to us.

Enterprise & Teams

Custom Access

Ongoing monitoring, site-wide crawls, team seats, and dedicated support.

Custom / contact us
  • Unlimited site audits
  • Publicly reachable staging URLs
  • Team seats & shared history
  • Priority support & SLA
Contact us

Payments secured by Stripe  ·  Read-only access only  ·  Cancel any time

Quick answers

No - never. Lumnio connects with read-only OAuth scopes (analytics.readonly, tagmanager.readonly). We cannot and do not write, modify, or publish anything to your GTM container or GA4 configuration. Your production setup remains completely untouched.
None at all for a site audit - just paste a URL. The GA4 and GTM audits need read-only access: your Google account with Viewer access to the GA4 property and Read access to the GTM container, or add our service account instead - instructions are in Settings after you sign up.
Yes. Lumnio uses a real browser and waits for the page to fully load and respond before it measures anything - so modern JavaScript sites built on React, Vue, Angular, Gatsby, or Next.js are all handled correctly, just as a real visitor would experience them.
Analytics and tag platforms (Google Analytics 4, Google Tag Manager, Segment, Tealium), every major advertising pixel (Google Ads, Meta, TikTok, LinkedIn, Microsoft, Pinterest, Snapchat, Reddit), session-recording tools (Microsoft Clarity, Hotjar, FullStory, Contentsquare), customer-data and messaging platforms (Salesforce Personalize, Braze, Klaviyo, Amplitude, Mixpanel), plus testing, monitoring and survey tools - and it flags any unknown third party quietly loading on your pages.
Those tools show you one tag firing, one page at a time, while you click around manually. Lumnio walks every interaction on the page like a real visitor and checks every vendor at once - GA4, GTM, ad pixels, session recorders, everything else loading - in the same run, then tells you what's broken and what fires before consent. It's the difference between spot-checking one tag and getting a full inventory with evidence behind it.

Your first audit is free.

No credit card. No setup. Just a URL and a few minutes.