Find every site running the same Facebook (Meta) Pixel

Published November 18, 2025 · OSINT · 2 min read

The Meta Pixel loads fbevents.js and initializes with fbq('init','<id>'). Search a specific pixel ID to find every site firing conversions into the same ad account.

The Meta (Facebook) Pixel is on 2,330,473 sites in the index via its loader fbevents.js. That footprint finds "everyone running a pixel." The useful move is the opposite: start from one pixel ID and find the specific set of sites wired to the same ad account — landing pages, sister brands, or a dropshipper's fleet.

Grab the ID, then search it

Open a known site's source and find the init call — fbq('init', '1234567890'). Search that literal ID, e.g. "fbq('init', '1234567890')", or just the number in quotes if the formatting varies. Every hit shares the ad account. To find all pixel inits at once, use regex: /fbq\(.init., .[0-9]{6,}/.

Cross-reference

Pixels rarely travel alone. Combine the pixel with a store footprint to tighten a dropship network: "cdn.shopify.com" "fbevents.js" returns Shopify stores that also run a Meta Pixel. Then pivot the domains you find on their shared Analytics ID to widen the map.

Confidence check

Read the source of each result: confirm the ID is inside the site's own fbq call rather than an embedded third-party script. Export the confirmed set and keep pivoting on every identifier the pages have in common.

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Frequently asked questions

How do I find a site's pixel ID?

Open its page source and look for fbq('init','<id>') — the number is the pixel ID. Or search fbevents.js on the site to jump to the pixel block.

Can one pixel ID appear on many domains?

Yes. Landing pages, sister brands, and networks routinely share one ad account, so the same pixel ID shows up across all of them — which is exactly what makes it a useful link.

How do I catch every pixel at once?

Use a regex like /fbq\(.init., .[0-9]{6,}/ to match any init call, or search fbevents.js to find every site loading the pixel at all.