Cookie Policy
Version 1.1 · Last updated: 12 February 2026
1. Purpose of This Policy
This Cookie Policy explains how cookies and similar technologies are used on NautilusTrader websites operated by Nautech Systems Pty Ltd (“Nautech Systems”, “we”, “us”, or “our”). It should be read together with our Privacy Policy.
2. What Are Cookies?
Cookies are small text files placed on a user’s device when visiting a website. Similar technologies may include local storage, session storage, or other browser-based mechanisms that serve comparable purposes.
3. Types of Cookies We Use
We use a limited set of cookies and similar technologies for essential website operation and, where applicable, analytics and performance monitoring.
3.1 Essential Cookies
Essential cookies are necessary for core website functionality, including session management, authentication, security, abuse prevention, and recording user cookie preferences.
3.2 Analytics and Performance Cookies
We use analytics cookies to understand how visitors interact with our websites so that we can improve performance, reliability, and user experience. These cookies may involve limited identifiers such as device or browser information, are not used for advertising or cross-site tracking, and are used only with user consent where required by applicable law.
3.1 Essential Cookies
Essential cookies are necessary for core website functionality, including session management, authentication, security, abuse prevention, and recording user cookie preferences.
3.2 Analytics and Performance Cookies
We use analytics cookies to understand how visitors interact with our websites so that we can improve performance, reliability, and user experience. These cookies may involve limited identifiers such as device or browser information, are not used for advertising or cross-site tracking, and are used only with user consent where required by applicable law.
4. Cookie Inventory
The table below describes the cookies currently used on our websites.
| Cookie Name | Type | Purpose | Duration | Provider |
|---|---|---|---|---|
session_id | Essential | Session management and authentication | Session | First-party |
csrf_token | Essential | Security and request forgery protection | Session | First-party |
nt_cookie_consent | Essential | Stores user cookie consent preferences | Up to 12 months | First-party |
ph_* | Analytics | Website usage analytics and performance monitoring | Up to 12 months | PostHog (first-party) |
5. Managing Cookies and Consent
Users can manage or disable cookies through their browser settings. Essential cookies are required for website operation and cannot be disabled through consent mechanisms. Analytics cookies are used only with user consent where required by applicable law.
6. Third-Party Cookies
We do not use cookies for advertising or cross-site tracking. Analytics cookies provided by PostHog are configured for first-party usage and subject to appropriate contractual and data protection safeguards.
7. Changes to This Policy
This Cookie Policy may be updated from time to time to reflect changes in our practices, technologies, or legal requirements. Updated versions will be published as appropriate.
8. Contact
Questions regarding this document may be directed to privacy@nautechsystems.io.
NautilusTrader™ is a product of Nautech Systems Pty Ltd (ABN 88 609 589 237). Nautech Systems provides algorithmic trading software only. We do not operate as a broker, dealer, or exchange, nor offer financial advisory services. Users are solely responsible for compliance with applicable laws and regulations. Subject to non-excludable consumer guarantees, we make no warranties and accept no liability for trading losses or regulatory violations arising from use of the software. Read full disclaimer.