Cookie Policy
March 27, 2026
This Cookie Policy explains how IPv4Center.com ("Platform"), operated by Centerium LLC ("Company", "we", "us"), uses cookies and similar tracking technologies. By continuing to use our Platform, you consent to the use of cookies as described in this policy.
1. What Are Cookies?
Cookies are small text files that are stored on your device (computer, tablet, or smartphone) when you visit a website. They are widely used to make websites work efficiently, provide a better user experience, and supply information to the website operators. Cookies may be "session" cookies (deleted when you close your browser) or "persistent" cookies (remaining on your device for a set period or until you delete them).
2. Types of Cookies We Use
We use the following categories of cookies on our Platform:
2.1 Essential Cookies
These cookies are strictly necessary for the Platform to function and cannot be disabled. They enable core functionality such as:
- User authentication and session management — keeping you securely logged in.
- Security tokens (CSRF protection) — preventing cross-site request forgery attacks.
- Cookie consent preferences — remembering your cookie choices.
- Load balancing and server routing — ensuring stable and reliable service.
2.2 Functional Cookies
These cookies allow the Platform to remember choices you make and provide enhanced, personalized features:
- Language and locale preferences — displaying content in your preferred language.
- Display settings — remembering your preferred currency, timezone, and theme.
- Marketplace filters — retaining your search filters and sorting preferences.
- Recently viewed items — keeping track of IPv4 listings you have viewed.
2.3 Analytics Cookies
These cookies help us understand how visitors interact with our Platform so we can improve our services. Analytics data is collected in aggregate form and does not identify individual users:
- Page views and navigation paths — understanding which pages are most visited.
- Session duration and bounce rates — measuring engagement with our content.
- Feature usage patterns — identifying which tools and features are most valuable.
- Error tracking — detecting and resolving technical issues promptly.
3. Third-Party Cookies
We may allow certain trusted third-party services to place cookies on your device when you use our Platform. These third parties include:
- Analytics providers — to help us analyze Platform usage and improve our services.
- Payment processors (e.g., Stripe) — to facilitate secure payment transactions.
- Security services — to detect and prevent fraudulent activity.
Third-party cookies are subject to the respective privacy policies of those providers. We do not control these cookies and encourage you to review the relevant third-party policies.
4. Cookie Retention Periods
The retention period for cookies varies depending on their purpose:
- Session cookies: Deleted automatically when you close your browser.
- Authentication cookies: Retained for up to 30 days (or until you log out).
- Preference cookies: Retained for up to 12 months.
- Analytics cookies: Retained for up to 24 months.
- Consent cookies: Retained for up to 12 months to remember your choices.
5. Managing Cookies
You have the right to decide whether to accept or reject cookies. You can manage your cookie preferences in the following ways:
5.1 Browser Settings
Most web browsers allow you to control cookies through their settings. You can typically:
- View and delete existing cookies.
- Block all cookies or only third-party cookies.
- Set preferences for specific websites.
- Receive notifications when a cookie is being set.
5.2 Impact of Disabling Cookies
Please note that disabling certain cookies may affect the functionality of the Platform:
- Disabling essential cookies will prevent you from logging in and using core features.
- Disabling functional cookies means your preferences will not be saved between sessions.
- Disabling analytics cookies will not affect your Platform experience, but it will limit our ability to improve our services.
6. Do Not Track Signals
Some browsers offer a "Do Not Track" (DNT) feature that sends a signal to websites you visit indicating that you do not wish to be tracked. Our Platform currently does not respond to DNT signals, as there is no universally accepted standard for how to interpret them. However, you can manage tracking through your cookie settings as described in this policy.
7. Updates to This Policy
We may update this Cookie Policy from time to time to reflect changes in technology, legislation, or our data practices. Material changes will be communicated via a notice on our Platform. The "Last updated" date at the top of this page indicates when the policy was most recently revised. We encourage you to review this policy periodically.
8. Contact Us
If you have any questions about this Cookie Policy or how we use cookies, please contact us:
- Email: [email protected]
- Company: Centerium LLC
- Address: 109 Fowler Ct, New Castle, Delaware 19720-5409, United States