Companies Using Facebook Pixel

With 10+ years in web crawling and technographic data analysis, I have examined Facebook Pixel's footprint across our full corpus. This analysis draws on 3,428,681 detected domains and the 1,664,190 of them we could match to a company record, as of our August 2026 crawl. Meta reported $201 billion in advertising revenue in 2025, up 22% year over year. That is the company's own number. What follows is what our data says about where the pixel actually loads.

One framing note before anything else, because it governs every figure on this page. The pixel is free. Meta gives it away precisely so that every advertiser installs it, and a solo realtor, a single-location gym and a Fortune 500 marketing team all appear in this data on identical terms. There is no purchase, no seat and no contract to count. Read every number below as "domains where we detect the pixel", never as customers. Calling 3.4 million domains "customers" would simply be false.

1. What the chart shows, and what it does not

The usage chart above covers the current crawl only: 2,821,759 active domains in June 2026, 3,377,894 in July and 3,428,681 in August. Three points, one consistent basis. We hold readings for Facebook Pixel going back years, and they are not on that chart on purpose. Our coverage then and our coverage now differ enough that joining them into one line would imply a growth rate the data cannot support, so no rate should be read between them and these.

Even inside the window, the June to July step of roughly 556,000 domains is bigger than a month of genuine adoption. Two things move it simultaneously: the crawled domain set turns over every month, with dead domains falling out and newly discovered ones coming in, and our detection signals widen as we add ways of recognizing the tag. Neither cause on its own explains the shape, and quoting one without the other would be misleading.

The same caution applies to the churn figure. 395,990 domains carried a pixel detection and no longer do. That is what we have observed since this window opened in mid-March 2026, roughly five months, not a lifetime tally. It also has an ordinary explanation for a free advertising tag: a domain that stops running Meta ads often leaves the tag behind or strips it in a routine site rebuild.

"The pixel is the largest single footprint on our site, and it is the one number most likely to be misread. Free distribution is not market power in the sense people assume. It measures how little effort Meta requires, not how much anyone paid." - Mehmet Suleyman, CEO at TechnologyChecker.io

2. Customer profile

60.78% of the domains we can size have 1 to 10 employees, 952,525 out of 1,567,200, with another 24.57% in the 11 to 50 band. More than 85% of the sized base sits in those two bands. Only 3,436 domains belong to companies with 10,001 or more employees, and 2,863 to the 5,001 to 10,000 band. The age data points the same way: 40.92% of the companies we can date were founded in the 2010s and another 21.13% in the 2020s, so 62% postdate 2010.

The large-organisation tail is small in percentage terms and interesting in composition. Our crawl finds the pixel on Infosys, HCLTech, Mahindra & Mahindra, HDFC Bank, Tech Mahindra and ICICI Bank, an unusually Indian and financial-services-heavy top of the list. That is not a sampling artifact. Indian IT services firms and Indian banks run some of the largest consumer and recruitment campaigns on Meta anywhere, and they run them from the corporate domain. Elsewhere the enterprise detections look the way marketing tags usually look: vacareers.va.gov, jobs.cvshealth.com, careers.rtx.com, jobs.boeing.com and athome.starbucks.com are careers and campaign hosts rather than corporate homepages.

Sales Signal: the enterprise pool is small enough to work by hand. 3,436 domains at 10,001+ employees, concentrated in IT services, banking and recruitment marketing, is a list a single rep can cover. The micro-business bulk is the opposite: it is only reachable through self-serve products, free tiers and platform app stores.

3. Industry and geographic concentration

Retail leads at 7.06% and nothing else reaches 3%. Real Estate (3.93%), Advertising Services (3.46%), Construction (2.82%) and Wellness and Fitness Services (2.75%) follow, and the top ten industries together account for just under 31% of the domains we can classify. A flat table on a horizontal advertising tag is exactly what should be expected, and the right reading is not that the data is thin. It is that the pixel follows advertising budget, every industry advertises on Meta, and the distribution therefore reproduces the shape of the commercial web rather than describing a buyer persona. The presence of Real Estate and Construction in the top four, neither of which sells anything online, is the giveaway: those are lead generation advertisers, and the pixel is how a form submission gets attributed to an ad.

Geographically the United States leads with 538,358 domains, then Brazil (117,974), the United Kingdom (105,860), Australia (86,231) and Canada (71,277). Brazil in second is the row worth pausing on. Most web technologies show the UK or Canada there. Brazil is a large, ad-heavy social commerce market where Meta carries an unusual share of retail demand, so the ordering here tracks advertising spend rather than population or web size. India follows at 66,918, consistent with the enterprise names above.

Sales Signal: Brazil and India are both underserved by ad-tech tooling relative to their pixel density. Any product that integrates with the pixel or the Conversions API and ships Portuguese-language support has a ready audience of more than 100,000 Brazilian domains.

4. Why this page has no switching section

Most profiles on this site carry a switching table. This one does not, and the omission is deliberate. Attribution pixels are complements, not substitutes. The Meta pixel reports conversions to Meta, the Google tag reports to Google, the TikTok pixel reports to TikTok, and an advertiser running all three channels installs all three tags. When a domain drops the TikTok pixel while keeping this one, what changed is the ad budget, not the vendor. Publishing that as a switching corridor would invent a competitive story that does not exist, so we left it out rather than dress it up.

The same logic explains why the category share should not be read as dominance in the usual sense. At 60.21% of 5,694,844 domains across 82 tracked technologies, Facebook Pixel is the tag most commonly present. It is not the tag most companies chose over the alternatives, because for the most part there was no choice to make.

"A 3.8x lead over the Google tag is not a scoreboard. It is a measure of how many businesses buy Meta ads versus Google ads, plus the fact that nothing stops a dormant tag from sitting on a page for years." - Mehmet Suleyman, CEO at TechnologyChecker.io

5. Technology ecosystem

The co-occurrence table settles the most common misconception about this tag. Google Analytics appears on 79.51% of the pixel domains we can profile. These are not competing products, and nearly four in five pixel sites run a general analytics platform alongside it. Cloudflare (50.71%) leads infrastructure, cdnjs (14.10%) and jsDelivr (13.11%) follow, and React (12.15%) leads JavaScript frameworks.

The platform rows carry the commercial signal. WordPress sits at 30.45% and Shopify at 22.98%, which is strikingly close given how much smaller Shopify is than WordPress across the web as a whole. WooCommerce adds 8.56%, Wix eCommerce 3.59% and Squarespace Commerce 2.96%. That compression between a platform's overall size and its share here is the merchant skew showing through: online stores install this tag at a far higher rate than sites in general. The single most telling row is PixelYourSite at 4.12%, a WordPress plugin whose entire purpose is installing this tag. When a tool exists solely to paste in your snippet, and it shows up on one in twenty-five profiled domains, the effort barrier is close to zero.

Sales Signal: the WordPress and Shopify concentration defines where integration work pays back. A one-click Shopify app and a WordPress plugin cover more than half the profiled base between them, and the PixelYourSite share shows the audience will install a plugin to avoid touching code.

6. Key takeaways

1. Scale, correctly framed: 3,428,681 domains carry the pixel, the largest footprint in this category and among the largest we track. It is free, so this counts installations, not customers.

2. Share is presence, not preference: 60.21% of the category means most commonly present. Advertisers run several attribution tags at once, so this is not a share of decisions.

3. Core base: micro-businesses of 1 to 10 employees, founded after 2010, in the US or Brazil, running retail or lead generation on WordPress or Shopify.

4. Flat by design: no industry reaches 8% and the top ten account for under 31%. The distribution describes the commercial web, not a buyer.

5. Structural dependency: Meta ad delivery cannot be optimized for on-site conversions without the pixel or the Conversions API, which is why the tag is nearly universal among Meta advertisers and why it attracts almost no product reviews of its own.

7. Sales applications

For teams using TechnologyChecker.io data, this is one of the largest addressable lists on the site, which makes filtering the whole job. Two segments are worth separating.

The merchant segment: pixel plus Shopify or WooCommerce. These domains are running paid acquisition against a real basket, which makes them buyers for attribution, server-side tracking, email and retention tooling.

The lead generation segment: pixel on Real Estate, Construction and Wellness domains, which together are close to 10% of the classified base. These advertisers measure form submissions rather than purchases, and they are candidates for call tracking and CRM integrations rather than ecommerce tools.

What not to do: do not treat a pixel detection as evidence of an active campaign. The tag is free and frequently left behind, and 395,990 domains have already dropped a detection in the five months we have been watching. Qualify on a second signal, such as a current ad platform or an ecommerce stack, before spending outreach on it.

For deeper analysis, explore our full dataset of 1,664,190 matched Facebook Pixel company profiles and 3,428,681 detected domains at TechnologyChecker.io.