Free Tool
Tracking Verification Checker
See exactly which analytics tags, ad pixels and consent tools a page ships, with their IDs and any duplicates. Then get the exact steps to confirm they actually fire, because installed and firing are not the same thing.
Reads the page source for analytics, ad pixels, consent tools and server side tagging hints. Tip: check the page your ads send people to, and the thank you page after a lead form.
Free, no signup. Live lookup.
Every result has a shareable link.
What A Tracking Check Tells You
Ad accounts are only as good as the signals they receive. If the Meta Pixel is missing, Meta optimises blind. If it is installed twice, every lead is counted twice and the cost per lead looks half of what it is. If Universal Analytics code is still on the page, someone is looking at a property that stopped collecting data in July 2024. This tool reads a page's source and lists the tags it ships, so you can see the tracking setup before you change a budget.
What It Detects
Our server fetches the page as delivered, and your browser reads every script, its source address and the noscript fallbacks. It looks for the patterns each platform's install code uses:
- Google Tag Manager: container IDs starting
GTM-. - Google Analytics 4: measurement IDs starting
G-, from gtag.js and config commands. - Google Ads: conversion IDs starting
AW-. - Universal Analytics: old
UA-IDs, flagged because the product is retired. - Meta Pixel: the ID in
fbq('init', ...)and the noscript image. - TikTok Pixel: the ID in
ttq.load(...). - LinkedIn Insight Tag: the partner ID.
- Microsoft Advertising UET, Pinterest and Snap: their tag IDs and libraries.
- Hotjar and Microsoft Clarity: site and project IDs.
- Consent: Google Consent Mode
consent defaultcommands, the v2 parametersad_user_dataandad_personalization, and consent platforms including CookieYes, Cookiebot and OneTrust. - Server side hints: Google tags loaded from a domain other than googletagmanager.com, or a
server_container_urlsetting.
Duplicates
A duplicate is the same thing set up twice: a GTM container loaded by two scripts, a GA4 ID configured twice, a Meta pixel initialised twice, or PageView tracked more times than there are pixels. The usual cause is a theme setting or plugin adding a tag that GTM already fires. Two different Meta pixel IDs are listed separately, because that can be deliberate.
How To Read The Result
The table lists every tag found with its ID and a status. Installed means the code is in the source once. Duplicate means it is there more than once. Retired means the product no longer collects data. Check each ID against the accounts you actually own: an old agency's pixel, or a pixel from a different business entirely, is a common find. The findings below the table are sorted with problems first, then notes about GTM, consent and server side tagging.
What It Cannot See
Three limits matter, and the result states them:
- Tags inside Google Tag Manager. GTM loads its tags after the page arrives. The container's contents are not in the page source, so a site that runs everything through GTM shows only the GTM ID. Open GTM Preview mode to see what it fires.
- Whether a tag fires. Installed code can be blocked by consent settings, broken by a script error or set to the wrong trigger. Only a live test proves it fires.
- Server events. The Meta Conversions API and server side GTM send data from a server, not the page.
How To Confirm Tags Fire
- Google: connect the page in Tag Assistant and complete a conversion. Watch GA4 DebugView, and check the Google Ads conversion action reports Recording.
- Meta: load the page with the Meta Pixel Helper extension, then use Test events in Events Manager while you submit a real lead.
- TikTok: TikTok Pixel Helper, then Test events in TikTok Events Manager.
- LinkedIn and Microsoft: the Insight Tag status in Campaign Manager and the UET Tag Helper.
- Consent: decline cookies in a private window and confirm in Tag Assistant that tags respect the choice.
Mistakes To Avoid
- Checking only the homepage. Check the landing page your ads use and the thank you page after a form.
- Hard coding a pixel and adding it in GTM as well.
- Setting the consent default after the tags load. It must run first.
- Assuming a conversion is tracked because the pixel is installed. Submit a test lead every time you change the site.
For Agencies
Most ad accounts Wise Media audits have at least one tracking problem, and it is the first thing worth fixing, because every optimisation decision depends on it. Run this before taking over an account, and again after any website change. A duplicate pixel or a retired UA tag is a specific, credible opener with a prospect.
Fix What This Measured
Paid Ads Agency Course
The Paid Ads Agency Course starts where this check stops: building tracking that fires on the right action, server side events, consent that does not break attribution, and the reporting that keeps clients from cancelling.
Rather Not DIY It?
Let Wise Media Build It.
The tool shows the gap. The studio closes it: brand, site, app and AI, then the ads, email, content and search that turn them into revenue.
Website Development
Custom sites with one job per page, built fast for phones, search and AI answers.
From $3,000CAD one timeSee Website DevelopmentApp Development
Web apps, portals and dashboards on Next.js, Supabase and Stripe, installable on any phone.
From $5,000CAD one timeSee App DevelopmentPaid Advertising
Meta, Google and TikTok campaigns built on the offer and page first, reported as one number.
From $750CAD per monthSee Paid AdvertisingSEO & AI Search
Rank in Google, get named by ChatGPT and Gemini, and convert the visit after the click.
From $350CAD per monthSee SEO & AI SearchBrand Identity
Positioning, logo suite, colour, type and the guide that keeps it consistent.
From $750CAD one timeSee Brand IdentityAI Agents & Automation
Custom AI agents, LLM features and n8n automation connected to the tools you already use.
From $1,000CAD one timeSee AI Agents & AutomationContent Production
Short form video, carousels and AI clone content produced on a weekly calendar.
From $750CAD per monthSee Content ProductionEmail Marketing
Campaigns written and sent, lifecycle flows and SMS, every send tied to revenue.
From $350CAD per monthSee Email MarketingWebsite Care
Updates, daily backups, monitoring, edits and search maintenance handled every month after launch.
From $100CAD per monthSee Website CareCyber Security
Email, accounts, staff devices and company data protected, with the documents your insurer asks for.
From $250CAD per monthSee Cyber SecurityTracking Verification Checker Questions
Straight answers on using it and acting on the result.
Quick Answer
How Do I Check Which Tracking Pixels Are On A Website?
Scan the page source for each platform's install code: GTM- container IDs, G- GA4 IDs, AW- Google Ads IDs, the Meta fbq init ID, TikTok ttq.load and LinkedIn partner IDs. That shows what is installed. To confirm tags fire, use Tag Assistant, Meta Pixel Helper and each platform's test events view.
- Detects. Google, Meta, TikTok, LinkedIn, Microsoft, Pinterest, Snap
- Also checks. Duplicates, consent mode and server side hints
- Cannot see. Tags inside GTM, or whether tags fire
FAQ
Frequently Asked Questions
Install the Meta Pixel Helper Chrome extension and load the page; it shows each pixel ID and event. Then use Test events in Meta Events Manager, enter your URL and submit a real lead. If the event arrives, the pixel fires.
GTM loads its tags with JavaScript after the page arrives. The container contents are stored by Google, not in your page source. Use GTM Preview mode or Tag Assistant to see exactly which tags fire and when.
Page views and conversions are counted twice. Reports overstate results, cost per lead looks lower than it is, and ad platforms optimise on inflated signals. Remove one install, usually the hard coded copy or the plugin.
No. Google stopped processing Universal Analytics data on 1 July 2024. A UA- tag still on a page collects nothing useful. Remove it and make sure GA4 is installed and recording.
It is how Google tags receive a visitor's consent choice. Version 2 added ad_user_data and ad_personalization. Google requires it for ads personalisation and remarketing with traffic from the EEA and UK. The default must be set before tags load.
No. The Conversions API sends events from a server, so nothing appears in the page source. Check Events Manager, where each event shows whether it arrived from the browser, the server or both.
The landing page your ads send people to, and the thank you page after a form or checkout. Conversion tags often live only on the thank you page, so checking the homepage alone can miss them.
The tags may be added by a plugin with JavaScript after load, loaded only after cookie consent, or the site may have blocked our checker. Check the page in a browser with Tag Assistant or the platform helper extensions.
More Free Tools
Built from the same toolkits Wise Media runs client work on.
Allowable Acquisition Cost Calculator
Customer lifetime value and the most you can pay for a customer.
Use The ToolAds Churn Risk Score
Lead handling, attribution and owned assets, scored for churn risk.
Use The ToolWebsite Health Checker
SSL, security headers, platform, speed and email auth, with a risk score.
Use The ToolEmail Deliverability Checker
SPF, DKIM and DMARC for any domain, explained in plain English.
Use The ToolContrast And Ramp Checker
Every pair in a colour ramp tested at 4.5:1 and 3:1, with a job for each step.
Use The ToolAnswer Block Checker
Does the page answer its question in the first 60 words?
Use The ToolRather Have It
Done For You?
Wise Media builds and runs this for clients. Thirty minutes with Cody: the bottleneck named, the fix scoped, the price on the table.