Privacy Policy | ExtensionRadar

ExtensionRadar is a Chrome extension rankings and growth-data project. This policy explains, in plain language, what happens to information when you use the ExtensionRadar website, why the project collects as little as it does, and what choices you have. If anything here is unclear, treat that as a bug in the policy — the standard ExtensionRadar tries to hold its data to applies to this page as well.

What this policy covers

This policy covers the ExtensionRadar website and its chart pages — new, growing, and breakout rankings — in every language version we publish. It covers reading pages, filtering charts, following links to the Chrome Web Store, and any optional interactive features enabled on the site. It does not cover the Chrome Web Store, Mozilla Add-ons, or any third-party site you reach from ExtensionRadar; those services have their own policies, and we recommend reading them.

What ExtensionRadar collects

By design, very little. ExtensionRadar publishes charts built from public Chrome Web Store signals — listing names, categories, publication dates, and user-count observations. None of that is personal data, and none of it is tied to you as a visitor.

When you browse ExtensionRadar, standard server logs may briefly record technical request data (such as IP address, user agent, requested URL, and timestamp) for security, rate limiting, and debugging. These logs are kept only as long as operationally necessary and are not used to build profiles of visitors. ExtensionRadar does not run accounts, does not sell data, does not run cross-site trackers, and does not ask for your email to read a chart.

Two things are worth spelling out. First, the charts themselves are static files rebuilt by a scheduled pipeline — reading them sends no query to any database of people, because no such database exists. Second, ExtensionRadar treats any technical data it must touch as an operational cost to minimize, not an asset to collect: when a log outlives its debugging purpose, it is deleted rather than archived for some hypothetical future use.

What ExtensionRadar never collects

There are things this project will not collect, stated explicitly so the promise is auditable. ExtensionRadar does not collect names, email addresses, phone numbers, or payment details through the public website. It does not collect Chrome extension CRX files, extension reviews text, or developer contact information from the store. It does not read your browser history, your installed extensions, or any data from your device beyond the standard request information described above. The rankings on ExtensionRadar describe the extension ecosystem, not the people watching it.

Cookies and local storage

ExtensionRadar uses a small number of first-party cookies and local storage entries, all functional. A language preference remembers which of our six interface languages you selected, so chart pages load in your language on the next visit. A theme preference remembers light or dark mode. If an optional analytics or advertising integration has been enabled by the operator, its cookies apply only when you interact with the site and can be blocked with any standard browser tool without breaking the charts. There are no third-party login widgets required to browse ExtensionRadar, and no cookie walls.

Preferences ExtensionRadar stores

The complete list of first-party storage is short enough to print here: the language you picked, the color scheme you picked, and nothing else that identifies you across visits. Clearing site data in your browser resets both preferences in one action, and every chart remains fully usable afterward — the preferences change how ExtensionRadar looks, never what it will show you or whether it will show it.

Third-party services and data sources

The growth history behind ExtensionRadar charts builds on public weekly datasets published by Extension Tracker, used under the Creative Commons Attribution 4.0 license, combined with ExtensionRadar's own daily observations of public store pages. These sources contain information about browser extensions — not about you. Links from ExtensionRadar lead to the official Chrome Web Store; once you leave, the store's own terms and privacy policy govern. If analytics or advertising services are enabled, they process aggregate technical data under their own policies, and this page will name them when active.

How ExtensionRadar keeps sources at arm's length

Sourcing public store data does not create a data relationship between you and those sources. ExtensionRadar fetches store pages server-side, on its own schedule; your browser never requests Extension Tracker or the store on our behalf, and no identifier of yours travels with those fetches. The separation is deliberate — it keeps the observation pipeline observable, and it keeps your reading of a chart between you and ExtensionRadar alone.

Your choices and rights

Because ExtensionRadar does not maintain user accounts or personal-data profiles, there is generally no personal data to access, export, or delete. If you believe request logs or an enabled integration processed your personal data and you wish to exercise access, correction, or deletion rights under laws such as the GDPR, you may contact the operator through the public channels listed for the project. You can also block cookies, disable JavaScript analytics, or browse the charts from a privacy-respecting browser — every ranking page remains fully readable.

Children

ExtensionRadar is a research tool for builders and analysts and is not directed at children. The project does not knowingly collect personal data from anyone, including children, through the public website.

Data security and retention

Chart data is static, versioned, and republished daily; when a dataset version is replaced, the previous version's summary is retained only as long as it has operational value. Server logs are retained briefly and deleted on a rolling basis. If ExtensionRadar ever suffers a security incident that could affect visitors, the project will document what happened and what changed — consistent with how the methodology page already documents failure modes rather than hiding them.

Changes to this policy

If this policy changes, the "last updated" date above will change with it, and material changes will be described on this page rather than silently replacing the previous text. Continued use of ExtensionRadar after a change means the revised policy applies to your visits.

A closing note on scope

ExtensionRadar ranks browser extensions. It does not rank, profile, or judge people. The entire architecture — static charts, no accounts, no tracking pixels beyond optional aggregate analytics — exists to keep it that way, so that reading a chart of new Chrome extensions costs you nothing but a click.