# Privacy Policy — Adtimizer ads.txt analyzer

_Last updated: 2026-06-20_

This Chrome extension ("the Extension") analyzes `ads.txt` and `app-ads.txt`
files and is published by Adtimizer ("we", "us"). This policy explains what data
the Extension handles.

## Summary

- The Extension does **not** collect personal information.
- The basic analysis runs **entirely in your browser**. No data leaves your
  device for it.
- Data is sent to Adtimizer **only** when you explicitly click **"Deeper
  analysis"**, and only the contents needed to perform that analysis.

## What the Extension reads

When you open a page whose URL ends in `ads.txt` or `app-ads.txt`, the Extension
reads the **text content of that public file** (which is already publicly served
by the publisher). It uses this to check structure, find duplicates, and flag
unknown ad systems. This processing happens locally in your browser.

## What is stored locally

The Extension uses Chrome's local storage on your device to keep:

- A short list of recently analyzed domains and their scores (for the popup's
  "recently analyzed" list).
- Your settings (e.g. whether the on-page summary is shown).

This information stays on your device and is not transmitted to us. You can clear
it at any time by removing the Extension.

## What is sent to Adtimizer (only on request)

If — and only if — you click **"Deeper analysis"**, the Extension sends the
following to Adtimizer's API (`https://adstxt.adtimizer.co`) over HTTPS:

- The publisher domain of the ads.txt file you are viewing.
- The list of advertising-system records parsed from that public file
  (ad-system domain, publisher/seller ID, and relationship).

This is used solely to cross-reference those records against sellers.json data
and return the analysis to you. We do not use it to build a profile of you, and
we do not sell it. The request does not include your identity, browsing history,
cookies, or any personal data.

## What we do NOT do

- We do not track your browsing.
- We do not collect names, emails, IP-based profiles, or any personally
  identifiable information.
- We do not use remote code; all extension logic ships inside the package.
- We do not sell or share data with third parties for advertising.

## Permissions and why

- `storage` — to remember recent analyses and your settings on your device.
- Access to `https://adstxt.adtimizer.co/*` — to perform the optional deeper
  analysis you request.
- Access to pages ending in `ads.txt` / `app-ads.txt` — so the analysis can run
  on those public files.

## Contact

Questions about this policy: privacy@adtimizer.co — https://www.adtimizer.co