Facebook Pixel
Analytics
HSTS
SecurityFacebook Pixel and HSTS are both popular choices, but they serve different needs. Facebook Pixel is a Analytics with a traditional, manual approach to building, while HSTS is a Security that prioritises developer or designer control.
Below you'll find a side-by-side breakdown of detection signals, AI scores, and technical fingerprints — plus our honest take on which builder wins for different use cases.
How we detect Facebook Pixel vs HSTS — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
| Category | Analytics | Security |
| AI Score | 10/100 — Unknown | 10/100 — Unknown |
| Detection Signals | 3 patterns | 1 patterns |
| Script Detection | 1 patterns | — |
| CDN Detection | — | — |
| Header Detection | — | 1 headers |
| Sites Detected | No data yet | 273 scans |
| Best For | Professional websitesTry Facebook Pixel → | Professional websitesTry HSTS → |
| Official Website | Visit | Visit |
Analytics
Facebook Pixel is a analytics with an AI Score of 10/100 (Unknown). Our detection engine uses 3 signal patterns to identify Facebook Pixel-built sites.
Security
HSTS is a security with an AI Score of 10/100 (Unknown). Our detection engine uses 1 signal patterns to identify HSTS-built sites.
Facebook Pixel is a JavaScript-based analytics and advertising tracking tool developed by Meta, used primarily by e-commerce brands, digital marketers, and businesses running paid campaigns on Facebook and Instagram to measure conversions, build retargeting audiences, and optimize ad delivery. The AIWebsiteDetector engine identifies Facebook Pixel implementations through a combination of 1 distinct script pattern and 2 HTML patterns, targeting the characteristic `fbevents.js` script load from Meta's CDN infrastructure along with inline initialization code and associated HTML markup signatures embedded in page source. These signals are reliable across a wide range of site types, from small business storefronts to large-scale retail platforms, reflecting how broadly the pixel is deployed regardless of the underlying CMS or technology stack. Facebook Pixel is provided free of charge as part of Meta's Business Tools suite, accessible to any advertiser with a Meta Business account, which contributes to its near-ubiquitous presence across the commercial web and makes it one of the more consistently detectable third-party scripts in widespread use.
Choose Facebook Pixel if…
Choose HSTS if…
Our Pick — Based on 273+ detections
The most frequently detected security in our scan database.
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