Meta Pixel Checker – Test Facebook Pixel Installation
Detect Meta/Facebook Pixel IDs, fbq init, noscript, and duplicate installs.
Use this Meta Pixel Checker (also called a Facebook Pixel Checker) to inspect whether the Meta Pixel base code, Pixel ID, noscript fallback, and visible fbq calls appear in public HTML. It does not log into Meta Events Manager and cannot confirm server-side Conversions API delivery.
Detect Meta/Facebook Pixel IDs, fbq init, noscript, and duplicate installs.
Limitations: Automated output for review — align with your live site and analytics. Not a ranking, citation, or revenue guarantee.
Verify Meta Pixel / Facebook Pixel installation from public HTML
About this tool
Use this Meta Pixel Checker (also called a Facebook Pixel Checker) to inspect whether the Meta Pixel base code, Pixel ID, noscript fallback, and visible fbq calls appear in public HTML. It does not log into Meta Events Manager and cannot confirm server-side Conversions API delivery.
How it works
- Fetch the public homepage HTML with SSRF-safe networking.
- Detect fbevents.js, fbq('init'), and facebook.com/tr noscript pixels.
- Extract Pixel ID(s), visible track event names, and duplicate-install signals.
- Return a checklist for Events Manager validation you must run yourself.
What it checks
- Meta Pixel / Facebook Pixel script presence
- Noscript image pixel fallback
- Pixel ID extraction (one or many)
- fbq init call count
- Visible client-side event names in HTML
- Likely duplicate installations
What it cannot check
- Whether Events Manager is receiving events
- Server-side Conversions API / CAPI events
- Consent-mode blocking after user interaction
- Browser-only tags injected only after login or SPA navigation
Common problems
- Pixel installed twice (theme + GTM or plugin + hardcoded script)
- Missing noscript fallback
- Wrong Pixel ID across environments
- Assuming PageView means purchase events are configured
Example output
Meta Pixel: detected Pixel IDs: 1234567890 Script: yes · Noscript: yes fbq init calls: 1 Visible events: PageView
FAQ
- Is Meta Pixel the same as Facebook Pixel?
- Yes. Meta Pixel is the current name for the Facebook Pixel tracking base code.
- Can this tool validate server-side events?
- No. Public HTML cannot prove Conversions API delivery. Confirm in Meta Events Manager.
- What if the pixel loads only through GTM?
- Homepage HTML may still show GTM, while the Pixel ID appears only after the container publishes tags. Cross-check with the GTM Checker and Events Manager.
Related tools and next steps
Updated 2026-08-06