MD Asadul Islam
Google Analytics, GA4, GTM, Ads Conversion Tracking Expert
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What is the Facebook Pixel?
The Facebook Pixel is a small JavaScript code from Meta that you install on your website
Track user actions (PageView, ViewContent, AddToCart, Purchase, Lead, etc.)
Optimize Meta Ads for conversions
Build retargeting audiences
Measure ad performance...
Facebook PixelGoogle Tag ManagerconversionoptimizationDigital MarketingDigital Marketing Social Media Marketing
Facebook Ads purchase Event server side tracking
conversionoptimizationtrackingpurchaseordersFacebook Ads ManagementSocial Media ManagementDigital Marketing Google AnalyticsGoogle Tag ManagerFacebook Pixel
JS - Client IP
function () { try { var xhr = new XMLHttpRequest(); xhr.open('GET', 'https://api.ipify.org?format=json', false); xhr.send(null); if (xhr.status === 200) { return JSON.parse(xhr.responseText).ip; } } catch (e) { return undefined; } }
JS – Client User Agent function...
What this does (perfect for Meta / Google deduplication)
Reads external_id from URL
Stores it in a 1-year cookie
Reuses cookie value if URL param missing
Generates a UUID only if nothing exists
Safe for GTM Custom JS Variable
No syntax errors
If you want, I can also:
Convert this to...
