What we collect
NephroZayan does not require an account or login, does not run advertising, and does not sell personal information. Browsing the site is designed to work without submitting names, contact details, or clinical records.
Privacy-conscious audience measurement
NephroZayan uses Cloudflare Web Analytics, Cloudflare aggregate HTTP analytics, and Google Analytics 4 delivered through Cloudflare Zaraz to understand which pages are useful, how the site performs, broad country and device patterns, and how visitors arrived. These services may process technical request information such as IP address, browser/device details, page URL, referrer, and campaign parameters. NephroZayan uses the resulting reports in aggregate and does not use them for advertising or to build patient profiles.
Cloudflare Web Analytics is designed without cross-site tracking or fingerprinting. Google Analytics processing is governed by Google's own privacy terms. Do not place patient names or identifiers in links, search terms, or campaign parameters.
Learn more in the Cloudflare Privacy Policy and Google Privacy Policy.
Nephro-Calc is temporary-only
Clinical inputs, calculation results, labels, and session history stay in memory in the current browser tab only. The calculator does not write those clinical values to localStorage or IndexedDB, does not upload them to NephroZayan, and clears them when the tab is closed or the page is reloaded.
Do not enter names, medical record numbers, contact details, or any other patient identifiers. The calculators are educational tools, not a clinical record system.
Preferences and technical services
Non-clinical preferences such as display theme, units, favourites, recent calculator links, and text size may be stored locally to improve usability. Browser caching and service-worker storage may also keep app assets. Cloudflare and hosting providers process standard network and security information to deliver, protect, and measure the site. External services such as PubMed and YouTube have their own privacy policies and receive information when you follow a link or choose to load embedded media.
Email and error reports
If you email nephrozayan@gmail.com, your email address and message are received through the email provider and may be retained for support, safety, or editorial follow-up. Please remove all patient identifiers before sending a report.
Deletion and your choices
Reloading or closing the calculator clears clinical inputs and results from the active session. You can clear locally stored non-clinical preferences through your browser or device site-data controls. Browser privacy controls can limit analytics storage or requests. Email records are managed through the mailbox provider.
Educational use only
NephroZayan does not establish a clinician–patient relationship and is not a substitute for professional clinical judgment, diagnosis, or treatment. Seek urgent care for emergencies.