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GTM lets you install and manage tracking tags without editing code. Used right, it is the foundation of clean analytics; used wrong, it is the source of duplicate fires and corrupt data. These tutorials cover GTM installs, common tag setups, and the debug workflow that separates working tracking from broken tracking.
Shopify killed checkout.liquid in 2024, which broke the old GTM-on-checkout install pattern. This walks through the 2026-correct path: theme.liquid for storefront pages, Custom Pixels for the checkout. Both are required if you want full-funnel tracking.
There are three legitimate ways to install GTM on a WordPress site. Each suits a different operator. Pick wrong and you'll either have a brittle install, no dataLayer, or a developer dependency you didn't want.
Firing GA4 through GTM is the foundation of every modern analytics stack. Done right, it's one tag and a clean event map. Done wrong, you double-count every event and pollute six months of reports. This is the right way.
Meta doesn't ship a native GTM tag template, so the install is a Custom HTML tag. Done right, this is cleaner than the official Meta pixel-injection method — done wrong, you double-fire every event and the Events Manager fills with junk.
The default Form Submission trigger handles 70% of forms. The other 30% (AJAX forms, React forms, Webflow forms) need a custom pattern. This walks through both, and which one you need.
Every GTM tutorial assumes you know what dataLayer is. Most don't actually explain it. This one does — in plain English, with examples you can copy. No JavaScript prerequisites.
Server-side GTM is the difference between 'tracking works most of the time' and 'tracking works on iOS users behind ad blockers too.' It's not for everyone. But if you're past $5K/mo in ad spend, you're already losing money to client-side strip.
If three or more of these signals apply, hiring usually pays for itself in the first 30 days.
Google's analytics platform — required, free, and consistently the most-misconfigured tool in any marketing stack.
10 tutorials
Facebook + Instagram advertising platform managed through Meta Business Manager. The dominant paid social channel for e-commerce and DTC.
10 tutorials
Google's search, display, video, and shopping ad platform — the highest-intent paid acquisition channel for most B2B and SaaS businesses.
10 tutorials
Tag management platform — the right way to install GA4, Meta Pixel, and ad pixels on any site.
Part-time specialists run $14-16/hr. Full-time at $10-12/hr. Most ongoing engagements land between $400-1,200/mo depending on hours/week and account complexity.
When 3+ of the signals above apply, when your monthly spend on adjacent campaigns exceeds $2K, or when you're spending 6+ hours/week on this tool. The cost of compounding mistakes typically exceeds the cost of hiring before founders realize it.
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