Pixels installed twice
GA4 or the Meta pixel set up in your theme, Tag Manager and a Shopify app at once. Purchases get counted twice and ROAS looks better than it is.
Free tracking scan for Shopify stores
Know your tracking works.
Every day.
Paste your store. In 20 seconds you'll see whether GA4, the Meta pixel, TikTok and Tag Manager are installed right, or quietly double counting and missing purchases.
- Loading your storefront
- Reading your Shopify app pixels
- Opening your Tag Manager containers
- Checking for duplicates and gaps
The problems that cost you money, found in seconds.
Of five well-known Shopify brands we scanned on 8 November 2026, two had GA4 installed twice and three still had old Universal Analytics code in place. Big teams miss these. So do agencies.
Purchases nobody sees
Shopify checkout doesn't run theme code. If a pixel lives only in your theme or Tag Manager, your ad platforms probably never see a sale.
Broken Tag Manager
A container that's empty, deleted or never published, or two containers firing the same tags. We open every container your site loads.
Consent gaps
No cookie banner, or Google Ads running without Consent Mode, which shrinks your remarketing audiences and conversion modelling.
Leftovers and strays
Universal Analytics still loading years after it stopped working, or a second GA4 property splitting your data.
Silent breakages
The big one. A theme update or app install removes a pixel and nothing tells you, until the ad spend report looks wrong weeks later.
Tracking breaks quietly. Now you'll hear about it.
Subscribe a store and we check it every day. When something changes, you get one short email that says what broke and how to fix it.
Scan and subscribe
Run the free scan, then start monitoring that store in one click. Checkout takes a minute.
We check every day
Every tag ID, app pixel, custom pixel, Tag Manager container and consent tool, compared with yesterday.
You hear the same day
An email the moment something disappears or a new problem shows up, plus a one-line summary every Monday.
Today's check of yourstore.com found a change that affects your tracking:
- Meta pixel 1234567890 (Shopify app) disappeared from your site.
- The Facebook & Instagram app pixel is no longer installed.
Also changed: Tag Manager container GTM-ABC1234 was published (version 41 → 42).
One price. One store. Every day.
The scan is free forever. Monitoring costs less than one wasted day of ad spend.
Daily monitoring
$49/month per store
- Daily check of every tag, app pixel and Tag Manager container
- Same-day email when anything changes or breaks
- A plain-English fix for every problem
- Monday summary, so you know it's running
- Shareable report for your developer or agency
- Cancel anytime from your account page
Billing by Lemon Squeezy, our reseller: card or PayPal, sales tax handled, receipts by email.
Questions
Do you need access to my Shopify, Google or Meta accounts?
No. Pixel Check reads the same public pages and Tag Manager files every visitor's browser downloads. Nothing to install, no logins to share.
Does it work if my store isn't on Shopify?
The scan works on any website and finds GA4, Google Ads, Tag Manager, Meta, TikTok, Pinterest and consent tools. The Shopify-specific checks (app pixels, checkout tracking) only apply to Shopify stores.
What can't it see?
It reads your pages and containers, not live traffic. It can't confirm a purchase event fires with the right value, it can't read the code inside Shopify custom pixels, and headless storefronts that load tags from their own JavaScript are only partly visible. The report tells you when that's the case, and we don't suggest subscribing a store we can't watch properly.
How is this different from Google Tag Assistant or Meta Pixel Helper?
Those check one page in your browser when you remember to look. Pixel Check checks the whole setup every day and emails you when it changes, which is when tracking actually breaks.
Can I cancel anytime?
Yes. Every email has a link to your account page, where you can cancel in two clicks. Monitoring runs until the end of the month you paid for.
Will scanning slow down or affect my store?
No. A scan loads your home page once, like a single visitor. We don't fire your pixels, so your analytics and ad data are untouched.
Built by a tracking engineer
I'm Matt Klette. I'm a contract tracking engineer for a US apparel brand, working in Google Tag Manager, server-side tagging and the Meta Conversions API every day. I built Pixel Check because the most expensive tracking bugs I find are the ones that broke quietly months earlier. Questions or a strange result? Email mbkconsultinggroup@gmail.com and I'll answer myself.