Tool reference

Audits the published GTM container behind any website, no access needed: tags, consent settings, measurement IDs and risky Custom HTML.

89 expert checks on your GA4 property: data quality, events, ecommerce, links, audiences, PII and consent, scored out of 100 and ranked by impact.

20 expert checks on the live version of your GTM container, with real tag, trigger and variable names and the fix for each problem.

Every audit for a client in one go: GA4, the GTM container, Meta Ads and the website (tracking, GTM and consent), as one scorecard with the ten fixes that matter most and one branded report of everything.

Meta says 40 sales, GA4 says 25: finds out why. Reads both platforms for the same dates, the latest audits and, if you like, your thank-you page in a real browser, then ranks the causes by evidence with the fix for each.

34 expert checks on your Meta ad account: pixel and Conversions API, match quality, optimisation events, Learning Limited, rejected ads, frequency, UTMs, plus a live check that the pixel waits for consent.

Drafts your tracking plan from GA4 key events and your GTM tags. You confirm it, and every audit and live test then checks against it.

24 expert checks on your Google Ads account over the last 30 days: conversion tracking, wasted search terms, budgets, bidding and ad strength, ranked by impact.

Loads a page in a real browser and records every tag, pixel, hit and cookie that fires. Hits are blocked, so your analytics stay clean.

Clicks Reject and Accept on the cookie banner in two fresh visits and compares what fires, with a compliance verdict and screenshots.

Tests your conversion tracking end to end: opens the page in a real browser, answers the cookie banner, fills and submits the form, and checks that GA4, Google Ads and Meta receive the conversion.

Sessions, users, engagement, key events and revenue by channel, campaign, landing page, device or country, compared with the previous period, with data-quality warnings.

Any GA4 report: your choice of dimensions, metrics, dates and filters, checked against your property so a wrong name gets close matches instead of an error.

Queries, pages, clicks, impressions, CTR and position from Search Console, with the change against the previous period.

Answers what standard reports cannot (user paths, funnels, cohorts) with one read-only query on the BigQuery datasets you allow. A free dry run first, a size cap you set, and results with personal data removed.

Funnels, landing page paths, returning-user cohorts and events that stopped firing, from your GA4 export in BigQuery. Prebuilt, reviewed queries with a free dry run and a size cap you set.

Reviewed BigQuery SQL for the questions that matter most: first touch, last touch, linear and position-based attribution on your GA4 export, Meta results vs GA4 vs CRM by campaign, leads to won deals by source, and cost per won deal and ROAS on CRM revenue.

Leads, deals, win rate and won value from your CRM by source, campaign, stage or month, compared with the period before. Connect HubSpot, Salesforce or Zoho CRM (read-only, refreshed daily) or upload a CSV from any CRM. Names, emails and phones are never stored.

GA4, Meta Ads, Search Console and your CRM for the same dates in one table per channel or campaign: sessions, key events, ad spend, search clicks, deals and won value, with cost per deal and return on ad spend. Each platform's own conversions side by side, never added together.

Spend, clicks, CTR, CPC, purchases or leads, cost per result and ROAS from Meta Ads, by campaign, ad set or ad.

The conversions that matter for your business and where each one must arrive: GA4, Google Ads and Meta.

GTM versions published, GA4 key events added or removed, and Google Ads changes, so a sudden drop has a likely cause.

Cost, clicks, conversions, value and cost per conversion from Google Ads by campaign, ad group, keyword or search term.

Proposes negative keywords for search terms that waste budget. Google checks the change first, you approve it, and it can be undone.

Proposes pausing or enabling a Google Ads campaign, ad group or ad, with an undo.

Proposes a new daily budget, at most 20% up or down per change, and warns when the campaign is still learning.

Proposes sending qualified leads and won deals from your CRM to Google Ads, so bidding learns from revenue, not form fills.

Proposes a note on the GA4 timeline, such as "Consent banner changed", so later charts explain themselves.

Scans a new landing page and your live GTM container, then drafts the tags and triggers it needs. Tested in GTM preview first; nothing is published until you approve.

Shows every proposed change in your workspace and where it stands: waiting, applied, rejected, expired or undone.

Confirms MarStack is connected and shows your plan, credits and connected platforms.

Lists every GA4 account and property your connected Google accounts can open, with property IDs.

Lists every GTM container you can open, with GTM- IDs, ready for an audit.

Lists the Search Console sites you can see and your permission level on each.

Lists the BigQuery datasets you allow MarStack to read and their tables, with the GA4 export shown as one table and its date range.

Shows the columns, types, size and partitioning of a BigQuery table, so queries are written against the real layout.

Gives your assistant the SQL that maps CRM data you already keep in BigQuery onto standard columns (date, stage, won, value, source, campaign, click IDs), so it can join it with the GA4 export without moving any data.

Lists the Meta ad accounts your connected Meta logins can read, with IDs, currency and status.

Turns any check into a branded report: PDF or Word audit, Excel workbook or PowerPoint deck.

Turns an analysis across several MarStack results into one branded Excel, PDF, Word or PowerPoint file. Tables are copied from MarStack, never retyped; your agency brand if white-label is on.

Saves a lasting fact for your workspace, such as a target CPA or "never pause brand campaigns", after a person confirms it.

Finds past audits, answers, approved changes and platform changes in your workspace by meaning or by exact ID.

Finds MarStack's fix guidance for every audit check, plus the brand guidelines and briefs your workspace uploaded.

Tell MarStack what you think of a finding: right, wrong, accepted risk or badly worded. The next audit shows accepted risks labelled and unscored and your note next to the finding, and MarStack reviews what you mark wrong.

Lists the Google Ads accounts your Google connection can open, including accounts under a manager account.