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Third-party Tracker Finder
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Third party third parties Free of charge 1 URL No legal advice

Third-party Tracker Finder

Find well-known tracking services, external script hosts, and third-party integrations that are relevant to consent, privacy, and tag governance.

GDPR Tracking Tool Preview
This check evaluates
Known trackers
External hosts
Script hosts
Transfer/provider candidates

Ideal for tag inventory, provider lists, AVV/third country verification and data protection documentation.

Audit scope

What the Third-party Tracker Finder evaluated

Known trackers
External hosts
Script hosts
Transfer/provider candidates

The exam is deliberately fast and focused. It recognizes technical signals in headers, HTML, JavaScript and resources. Interactions with banners, login, forms and tag triggers should be additionally checked in the browser.

Third-party host is not the same tracking proof

Illustrative example · no measurement result of your website

<img src="https://cdn.example.org/assets/logo.svg" alt="Example">

An external resource may involve a CDN, font, video, or measurement service. Known tracker patterns and the list of external hosts answer different questions. Not every external host is a tracker and not every tracker uses a foreign hostname.

Then check the results in the browser.

  1. Assign found hosts to a function and a responsible provider.
  2. In the browser, check the initiator and the transmitted parameters of the relevant request. A file name or domain is not sufficient for the purpose.
  3. Also check your own subdomains and reloaded resources, for example, after opening a video.

What this check leaves open

The pattern recognition comprises known signatures in the delivered document. Renamed scripts, proxies and only server-side processing can remain unrecognized.

Check the time of loading before consent →
Premium extension

From individual check to GDPR tracking audit

A tool shows a concrete symptom. The audit checks up to 500 URLs, prioritizes tracking, consent and form risks, and provides export data.

Starting a premium audit
Other tools

Targeted deepening of GDPR tracking

All GDPR tracking tools
Cookies and Attributes
Cookie scanner

Check which cookies a URL technically shows, whether tracking cookie candidates appear and which attributes such as Secure, HttpOnly or SameSite are set.

 Before consent
Pre-Consent Tracking Check

Recognize tracking and third-party candidates who are already visible in the initial delivered page before a user actively consents.

 Google Consent Mode
Google Consent Mode Check

Check if Google tags have technical consent mode signals visible and if denied/granted hints appear in the code.

 Storage & Fingerprinting
Browser Storage Check

Recognize technical storage and access signals such as cookies, LocalStorage, SessionStorage, IndexedDB and fingerprinting candidates.

 Consent UX
CMP and Cookie Banner Check

Check whether known consent management platforms and important banner signals such as rejection, settings and revocation are technically findable.

 Web analysis
Analytics without Consent Check

Check if a URL contains more frugal analytics candidates or marketing/tracking signals requiring consent.
FAQ

Questions about Third-party Tracker Finder

Are third-party providers always problematic?

No. However, they must be consciously used, documented and, depending on the purpose, correctly displayed in consent and data protection notices.

Does the tool also recognize videos and fonts?

Yes, typical embedments such as Google Fonts, Google Maps, YouTube, Vimeo or reCAPTCHA are marked as provider signals.

Is the individual check free of charge?

Yes. The standalone tools check a single URL. For larger crawls, complete tables and CSV export, the premium audit is planned.

Does the tool replace legal advice?

No. The tools provide technical pre-testing. Legal bases, contracts, information obligations and concrete consent flows must be subject to technical review.