Finding Sites
With Trackers
Law Firms & Financial Firms
Find 100s of Trackers Across 100K+ Sites (Research & Litigation)
Are you looking to find all of the sites with a specific tracker (or set of trackers) on them? It sounds easy until you need scale, documentation, and a repeatable process.
Why manual review fails
- Going site-by-site takes forever at 10K+ / 100K+ scale.
- HTML source often doesn’t reveal full tracking behavior.
- Network traffic is frequently overlooked.
- Litigation requires chain-of-custody style documentation.
What we do
We scan and extract tracker signals at scale and can return a list of websites using a specific tracker (or family of trackers), plus supporting artifacts.
- Shorten research time from months to days/weeks
- Reveal 3rd-party data flows you didn’t know existed
- Strengthen evidentiary basis before suit or investment decisions
When Is Knowing Trackers Useful?
Knowing which sites have which trackers is extremely useful in a few specialized contexts. The most common use case we support is legal research: identifying potential targets that may be sharing personal information with third parties.
We also see niche investment research use cases, where tracker adoption can help gauge the expansion of certain service providers.
What Trackers Can Be Tracked
In practice, we can scan for most tracker domains and common pixel families, including the well-known platforms (Meta/Facebook pixel, TikTok pixel, LinkedIn pixel, Google Analytics), plus large numbers of advertising and analytics domains used across major sites.
If you can name the tracker domain (example: xxxxxx.com), we can usually return a list of sites where it appears, along with supporting evidence options depending on your needs.
Collecting Tracker Data (at scale)
For tracker work, downloading HTML alone isn’t enough. You typically need a browser-driven approach that captures network behavior and makes the results reproducible.
We’ve built crawler workflows specifically to observe homepage (and custom page) network traffic across large sets of sites, including sensitive-industry lists when required.
Outcome
- Identify tracker presence across large site lists
- Separate “loads” vs “actively runs / transmits”
- Provide documentation suitable for review later
Some More Web Crawler Specifics
To do this reliably, we use an automation stack that remotely controls real browsers and captures network traffic. This helps ensure you aren’t missing trackers that only appear after scripts run, cookies set, or page events fire.
It also helps distinguish between a tracker merely being present and a tracker actively transmitting data. Capturing everything matters, especially when you need confidence in conclusions.
What You’ll Receive: List and Documentation
We’ll align on your required outputs up front. If you only need counts (e.g., “tracker XYZ appears on ### sites”), we can provide that plus a spreadsheet of identified websites.
Standard outputs
- Spreadsheet of matched sites (XLSX/CSV)
- Summary counts + breakdowns
- Optional segmentation by industry or site type
Evidence options
- Screenshots
- HAR files (network capture)
- Video capture (when required)
- Reproducible “show it later” artifacts
Let’s Get Started
Looking for a list of sites with a specific tracker? Send us the tracker domain(s), the scope (industry / geography), and whether you need evidence artifacts, and we’ll get back to you quickly.
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