SiteDNA
Privacy policy
Effective 29 October 2026. This policy covers the SiteDNA Chrome extension and this website, both published by MT24Learning.
In short
SiteDNA analyzes the page you are looking at inside your own browser. It does not send the pages you analyze, or anything it finds on them, to us or to anyone else. It has no analytics, no tracking and no ads, and you never need an account. The only thing SiteDNA sends anywhere is your license key, and only when you activate SiteDNA PRO.
What SiteDNA reads
When you click the SiteDNA icon, Chrome gives the extension temporary access to the tab in front of you, and only that tab. SiteDNA then reads the page's styles and content to find its colors, typefaces, text sizes, images and SVG icons. This happens only after your click, and the results are processed entirely on your device.
What is stored on your device
| What | Where | How long |
|---|---|---|
| Your PRO status, license key and activation ID | Chrome's local extension storage | Until you uninstall SiteDNA |
| The data for the report you exported last | Chrome's session storage | Deleted when you close Chrome |
None of this is copied to our servers. We do not run any servers for SiteDNA.
What leaves your browser, and to whom
License activation. When you enter a PRO license key and click "Activate License", SiteDNA sends the key, SiteDNA's public store identifier and a fixed device label (SiteDNA_Chrome_User) to the license service of Polar at api.polar.sh, which confirms that the key is valid. As with any web request, Polar also receives your IP address. Nothing else is sent.
Images on the page you analyze. Image previews, and images you choose to save, load from the same website that published them, exactly as they do on that page.
Your clipboard and downloads. Copying a color, a font name or design tokens writes to your clipboard, and saving an image or a tokens file writes to your downloads folder. Both happen only when you click, and stay on your device.
Purchases
SiteDNA PRO is sold through Polar, which acts as the merchant of record: it takes the payment, issues the receipt and provides your license key. Polar shares your name, email address and order details with us so that we can provide your license and answer support requests. We never see your card details. Polar's own handling of your data is described in its privacy policy.
What we never do
We do not sell or rent data, use it for advertising or credit decisions, or let people read it. We do not build profiles of the websites you visit.
Chrome Web Store user data policy
The use of information received from Google APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements.
Permissions the extension asks for
| Permission | Why SiteDNA needs it |
|---|---|
activeTab | To read the tab in front of you, only after you click the SiteDNA icon. |
scripting | To run the analysis inside that tab. |
storage | To remember your PRO status on your device and to pass data to the report page. |
Access to api.polar.sh | To verify a PRO license key when you activate it. |
This website
This website is hosted on GitHub Pages. It uses no cookies, no analytics and no third-party fonts or scripts. GitHub, as the host, may log visitors' IP addresses for security, as described in GitHub's privacy statement.
Children
SiteDNA is a professional tool and is not directed at children under 13.
Changes to this policy
If SiteDNA starts handling data differently, we will update this page and its effective date before the change reaches you.
Contact
Questions about this policy or your data: mt24learning.support@gmail.com.