methodology / Privacy & Compliance / #49

Third-party tracker count

live factor #49 · Privacy & Compliance · scoring impl: implemented · weight 1.3%

What we measure

Each third-party tracker (analytics, ad pixel, marketing tool) is a vendor with access to your visitors' data. Fewer is better for both privacy and performance.

How to improve your score

Audit which trackers you actually use and remove the rest. Where possible, switch to server-side tagging so visitor data isn't shared with third parties on the client.

Data source

Data source for this factor is not yet documented.

Implementation notes

Detect known tracker domains in the network requests captured by Lighthouse.

Scoring

Scoring formulas are versioned with the methodology. The current method (v1.1.0) maps raw measurements to pass, warn, fail. Factor weights determine how much each contributes to the composite — see the methodology index for the full table.

Version history

← back to methodology