Who Is Domain Checker

Who Is Domain Checker Privacy Policy

Last updated: October 2026

Summary

Your saved domains are stored only on your device and there is no account. When you look up or refresh a domain, its name is sent to a WHOIS lookup service. There are no ads, analytics or subscriptions.

This policy covers the Who Is Domain Checker app for iPhone and iPad, published by mk0.net, an independent app studio. It is written from what the app actually does in its code. Questions: hello@mk0.net.

What we receive

We receive no personal data. Domain lookups go to a WHOIS service that receives only the domain name and standard connection data such as your IP address.

What stays on your device

  • Your saved and owned domains, with expiry dates and reminder settings, are stored on this device.
  • Exported PDF and text files are created on this device before you share them.
  • Settings are stored on this device.

We cannot see this data. It is not uploaded to us.

Permissions the app may ask for

  • Notifications: Asked when you turn on expiry reminders, which are scheduled on the device.

Every permission is optional and can be changed later in the iPhone Settings app. Features that need a permission you decline simply stay unavailable.

Data that leaves your device

The app talks to the following services. Each receives only what is listed, and only for the purpose shown.

  • a WHOIS lookup service (yazilimbilgini.com) (domain lookups): Each time you look up or refresh a domain: the domain name only.

Ads, tracking and analytics

No ads, no analytics, no tracking across apps, and we never sell your data.

Account

No account needed.

Children

Who Is Domain Checker is not directed at children under 13, and we do not knowingly collect personal information from children.

Keeping and deleting your data

Remove domains from your lists in the app. Deleting the app removes all local data.

Your rights

Depending on where you live (for example under the GDPR, UK GDPR, CCPA or KVKK), you have the right to access, correct, export or delete your personal data. Because the app keeps your records on your own device, you can do most of this directly in the app or by deleting it. For anything else, or for data held by a service listed above, email hello@mk0.net and we will help within 30 days.

Changes to this policy

If the app starts handling data differently, we will update this page and the date below before the change ships.

Contact

mk0.net, hello@mk0.net