This policy explains what information this website collects, how it is used, and what control you have over it. It covers the site itself, the third-party services used to serve advertising, and the calculators you use here.
The short version
- The numbers you type into any calculator on this site are not sent to this website or to anyone else. Every calculation runs in JavaScript inside your own browser.
- There are no accounts, no logins and no forms that submit data. The site has no database of user inputs.
- The site does use cookies, primarily through third-party advertising and measurement services, as described below.
- You can block or delete these cookies at any time through your browser settings or through the advertising industry opt-out links listed below.
Information processed by your browser
When you use a calculator, the values you enter are held in the memory of the page you are viewing. They are converted into results locally. They are not transmitted over the network, not written to any storage this site controls, and not retained after you close or reload the page. You can verify this by disconnecting your device from the internet after a page has loaded: every calculator continues to function normally.
Information collected automatically
Like most websites, this site and the third-party services it uses may collect standard technical information when a page is served. This typically includes your IP address, browser type and version, operating system, referring page, the pages you visit, the time and duration of your visit, and approximate location derived from your IP address. This information is used in aggregate to understand which pages are useful and to detect abuse. It is not used to identify you personally.
Advertising and cookies
This site is supported by advertising. Advertising is served by third-party vendors, including Google. These vendors may use cookies to serve ads based on your prior visits to this website or to other websites.
- Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and other sites on the internet.
- Google uses the DoubleClick DART cookie for this purpose. Its use of advertising cookies is described in Google's own privacy and terms pages.
- You may opt out of personalised advertising by visiting Google's Ads Settings, and you may opt out of personalised advertising from many other third-party vendors at www.aboutads.info/choices.
- You can also opt out of some third-party vendors' use of cookies for personalised advertising by visiting www.networkadvertising.org/choices.
- Blocking or refusing cookies does not prevent the calculators from working. It only affects advertising relevance.
Third-party vendors and ad networks operate under their own privacy policies. This site does not control the cookies those vendors set and cannot read them.
Cookies this site sets directly
The site does not set first-party tracking cookies and does not build a profile of individual visitors. Any cookie you see associated with this domain will relate to advertising delivery or to a security function of the hosting provider.
Third-party links
Some pages link to external resources, such as exchange contract specification pages or advertising industry opt-out tools. Once you follow such a link you are subject to that site's privacy policy, not this one. Links to exchanges and specification pages are provided for verification and are not endorsements.
Children's privacy
This site is a set of financial calculation tools intended for adults. It is not directed at children under the age of 13, and no information is knowingly collected from them. If you believe a child has provided information through this site, please make contact using the address below and it will be removed.
Your rights
Depending on where you live, you may have the right to access, correct or delete personal information held about you, to object to certain processing, or to opt out of the sale or sharing of personal information. Because this site does not hold user accounts or inputs, most such requests will concern information held by advertising vendors, and those requests are best directed to the vendors through the opt-out links above. You can also write to the address below and the request will be passed on where possible.
Data retention
This site retains no user-submitted data, because none is submitted. Aggregate server logs, if kept by the hosting provider, are retained for a limited period for security and diagnostic purposes and then discarded.
Changes to this policy
This policy may be updated to reflect changes in the services used or in applicable law. The date at the top of this page shows when it was last revised. Continued use of the site after a revision constitutes acceptance of the revised policy.
Contact
Questions about this policy can be sent to 185423201@qq.com.