This page explains what data Numerus collects, what it does not, and how third-party advertising on the site works. Last updated .
What this site collects directly
Nothing. Numerus is a static website. The conversion happens entirely in your browser; no number you type is ever sent to a server. There are no accounts, no cookies set by Numerus itself, and no analytics scripts.
Hosting logs
The hosting provider (Cloudflare Pages or equivalent) maintains short-term server logs that include your IP address, browser user agent, the page you requested, and a timestamp. These are standard request logs used to operate the service and detect abuse; they are not joined with any other data and are not used to identify visitors.
Advertising
Numerus displays advertisements served by Google AdSense. Google and its partners use cookies to serve ads based on a user's prior visits to this and other sites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to Numerus and other websites on the internet.
You can opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of a third-party vendor's use of cookies for personalized advertising by visiting aboutads.info.
For more on how Google uses information from sites that use its services, see Google's privacy & terms page.
Children
Numerus is a general-purpose utility and is not directed at children under 13. It does not knowingly collect any personal information from anyone, of any age.
Changes to this policy
If this policy changes, the updated date at the top of the page will reflect it. Material changes will be summarized in a short note here.
Contact
Questions about this policy can be sent via the contact page.