Free Tool

Pixel Checker

Detect Meta / Google pixels on any URL.

The Discipline

Tracking Is Not A Vibe, It Is An Audit Trail

Most tracking issues are not caused by missing pixels. They are caused by pixels loading twice, firing under the wrong ID, or firing on pages nobody thought to check. This tool reads the HTML the way a browser does on first paint and tells you exactly which vendors are present and which IDs they are reporting to.

Use it before you launch a campaign. Use it when a client's numbers do not match the platform. Use it after a dev push to make sure nothing quietly disappeared.

What This Catches
  • — Meta, Google Ads, TikTok, LinkedIn, Pinterest, Snapchat, X, Bing, Reddit, Quora pixels
  • — GA4, Universal Analytics, Segment, Amplitude, Mixpanel, Plausible
  • — Google Tag Manager containers
  • — Hotjar and Microsoft Clarity session recording
  • — HubSpot tracking
Does not execute JavaScript, so tags injected purely at runtime by third-party scripts may be missed. Load the page in the browser network tab to confirm anything critical.
Common Mistakes

Five Ways Pixels Silently Break Attribution

Duplicate Meta Pixel Fires

One in the theme, one in GTM, one in the checkout app. Every event triples in the reports and CPA looks great until you audit.

Wrong Property ID In Staging

A dev environment container gets promoted to production and events start flowing into the sandbox GA4 property. Nothing looks broken, but the real property goes silent.

Pixels Only On The Home Page

The base pixel loads sitewide but PageView is scoped to `/`. Every deep-link visit from paid traffic is invisible.

Consent Banner Blocking In Prod

A CMP is set to deny by default and the analytics team never opts anything into the marketing category. Pixels are present in HTML but never actually fire.

Old UA Tag Still Loading

Universal Analytics has been sunset since 2023 but the tag is still on every page slowing down the site and confusing new team members.

GTM Container Published Empty

The container loads, so pixel checkers pass, but the tags inside were never published from the workspace.

Want A Full Tracking Audit With A Fix List?

We stress-test GA4, Meta CAPI, Google Ads enhanced conversions and GTM containers on the pages that actually drive revenue, then hand back a prioritised fix list. Usually pays for itself the first week.

Talk To Trakkify