Sarudo Web Analysis Privacy Policy

This policy covers Sarudo Web Analysis, the Chrome extension by Sarudo that grades the usability of the web page you're on, and the small scoring server it works with, which you install on your own computer. Both can be downloaded, with setup steps, from the Sarudo Web Analysis page.

In short: the extension reads a page only when you ask it to, works out counts and yes/no facts about it in your browser, sends only those to a server running on your own computer, and stores nothing. Nothing is sent to Sarudo or to anyone else.

1. What the Extension Reads

Only when you click the extension and choose Analyze this page, and only in that tab (including frames from the same site), it reads the page in your browser to count what the usability heuristics are scored from: headings, links, buttons, form fields and their labels, dialogs, overlays, fonts, and the page's visible text, to count words and estimate how easy it is to read. It also looks at the page's address and structured data to tell what kind of page it is, such as a checkout or an article. All of this happens inside your browser.

It never reads what you type into input boxes or text areas. Text in a rich-text editor, such as an email-compose box, is part of the page's visible text, so it counts toward the word count and the reading-ease estimate, but it is never sent or stored. The extension never runs on its own or in the background, and it has no access to your other tabs or your browsing history.

2. What It Sends, and Where

It sends only counts and yes/no facts about the page (for example “12 links, 1 form field without a label, the page has a title”), the page's language and the kind of page it detected. It does not send the page's address, its title or any of its text.

It sends these facts only to the scoring server you installed on your own computer, at localhost:8420, which only your computer can reach. The server sends back the grade.

3. What Is Stored

Nothing. The extension keeps no history of the pages you analyze. The local server keeps no log of requests and writes nothing about the pages you analyze. Results disappear when you close the popup.

4. What Is Shared

Nothing leaves your computer. Apart from the server on your own computer, the extension makes no network requests. Its setup page links to sarudo.com to download the server; that download happens only when you click it, and the extension adds nothing about you or your pages to it. The popup and the setup page also each have a link saying the extension is made by Sarudo; clicking it opens sarudo.com in a new tab, and the link carries only a label saying which of the two screens it came from, nothing about you, your pages or your grades. Like any visit to sarudo.com, the download and that link are covered by our website Privacy Policy. The website counts its visits, including that label, with privacy-friendly analytics that don't use cookies.

The extension itself has no analytics, trackers, advertising or third-party services. We don't sell or transfer any data, and we don't use it for any purpose other than showing you the grade.

Our use of the information this extension handles adheres to the Chrome Web Store User Data Policy, including the Limited Use requirements.

5. Permissions

• activeTab lets the extension read the tab you're looking at, only after you click it.
• scripting runs the counting script in that tab.
• The host permission for http://localhost:8420 lets it talk to the server on your computer.
• A small background script does one thing: it opens the setup page once, when you first install the extension.

6. Removing It

Remove the extension from chrome://extensions. To remove the server, run bash ~/.sarudo-web-analysis/uninstall.sh in Terminal; on a Mac this also removes the login item that starts it.

7. Changes to Policy

If this policy changes, we'll update this page and the date above before the new version of the extension is published.

8. Contact

Questions about privacy: support@sarudo.com