Introduction
Gurobi Optimization, LLC ("Gurobi," "we," "our," or "us"), headquartered at 9450 SW Gemini Drive #90729, Beaverton, Oregon 97008, United States, is the developer of the world's leading mathematical optimization solver. Our website at www.gurobi.com (and associated subdomains including docs.gurobi.com, portal.gurobi.com, and support.gurobi.com) serves a global audience of enterprise customers, academic institutions, government agencies, and technology partners across the Americas, Europe, and Asia.
This Cookie Policy explains what cookies and similar tracking technologies are, how we use them, your rights and choices regarding their use, and how you can contact us with questions. It applies to all visitors of our websites regardless of geographic location.
This Cookie Policy should be read in conjunction with our Privacy Policy, available at www.gurobi.com/company/legal/privacy-policy.
Legal Framework: This Cookie Policy complies with the EU General Data Protection Regulation (GDPR), the California Consumer Privacy Act (CCPA/CPRA), the UK Privacy and Electronic Communications Regulations (PECR), and other applicable privacy laws.
What Are Cookies and Similar Technologies?
Cookies are small text files placed on your device (computer, tablet, or mobile phone) when you visit a website. They are widely used to make websites work more efficiently and to provide information to site operators.
2.1 Types of Cookies by Duration
Session cookies: Temporary cookies that expire when you close your browser. They allow the website to link your actions during a single browsing session.
Persistent cookies: Cookies that remain on your device for a set period of time or until you delete them. They are activated each time you visit the website that created the cookie.
2.2 Types of Cookies by Origin
First-party cookies: Cookies set by Gurobi directly from our website domain.
Third-party cookies: Cookies set by external parties, such as analytics providers, advertising platforms, and social media networks, through content embedded on our pages.
2.3 Similar Tracking Technologies
In addition to cookies, we may use the following technologies:
Web beacons / pixel tags: Small transparent images embedded in web pages or emails that allow us to track whether a page or email has been viewed.
Local storage and session storage: Browser-based storage mechanisms used to store data locally on your device.
Fingerprinting: Technical characteristics of your browser and device, such as screen resolution, browser version, and installed fonts, used to identify unique visitors.
Scripts and SDKs: JavaScript code executed on your browser that collects data for analytics or functionality purposes.
Categories of Cookies We Use
We classify the cookies used on our websites into the following four categories, consistent with the categories established by the International Chamber of Commerce (ICC) UK Cookie Guide.
3.1 Strictly Necessary Cookies
These cookies are essential for the operation of our website and cannot be switched off. They are usually set in response to actions made by you, such as setting your privacy preferences, logging in, or filling in forms. You can set your browser to block these cookies, but some parts of the site will then not work.
Legal basis: Legitimate interests (GDPR Article 6(1)(f)) — no consent required.
| Cookie Key | Domain | Cookie Type | Expiration | Description |
|---|---|---|---|---|
| __cf_bm | .pages.gurobi.com | First-party | 29 minutes | Distinguishes between humans and bots |
| __cf_bm | .docs.gurobi.com | First-party | 29 minutes | Distinguishes between humans and bots |
| __cf_bm | .support.gurobi.com | First-party | 29 minutes | Distinguishes between humans and bots |
| VISITOR_PRIVACY_METADATA | .youtube.com | Third-party | 5 months 4 weeks | Stores user consent and privacy choices |
3.2 Performance & Analytics Cookies
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us understand which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous.
Legal basis: Consent (GDPR Article 6(1)(a)) — these cookies are only deployed after you have provided your consent via our cookie banner.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us understand which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous.
Legal basis: Consent (GDPR Article 6(1)(a)) — these cookies are only deployed after you have provided your consent via our cookie banner.
| Cookie Key | Domain | Cookie Type | Expiration | Description |
|---|---|---|---|---|
| _ga_Q9J8EF61TH | .gurobi.com | First-party | 1 year 1 month | Google Analytics — persists session state |
| _zitok | .www.gurobi.com | First-party | 11 months 4 weeks | Optimizes UX and improves website performance |
| _ga | .gurobi.com | First-party | 1 year 1 month | Google Analytics — distinguishes unique users |
3.3 Functional Cookies
These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.
Legal basis: Consent (GDPR Article 6(1)(a)).
| Cookie Key | Domain | Cookie Type | Expiration | Description |
|---|---|---|---|---|
| _cfuvid | .docs.gurobi.com | First-party | Session | Tracks users across sessions for experience consistency |
| _cfuvid | .vimeo.com | Third-party | Session | Tracks users across sessions for experience consistency |
| vuid | .vimeo.com | Third-party | 1 year 1 month | Vimeo video player cookie |
| _cfuvid | .zoominfo.com | Third-party | Session | Tracks users across sessions for experience consistency |
| _cfuvid | .support.gurobi.com | First-party | Session | Tracks users across sessions for experience consistency |
3.4 Targeting & Advertising Cookies
These cookies may be set through our site by our advertising partners to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.
Legal basis: Consent (GDPR Article 6(1)(a)).
| Cookie Key | Domain | Cookie Type | Expiration | Description |
|---|---|---|---|---|
| YSC | .youtube.com | Third-party | Session | YouTube — tracks views of embedded videos |
| VISITOR_INFO1_LIVE | .youtube.com | Third-party | 5 months 4 weeks | YouTube — tracks user preferences for embedded videos |
Third-Party Services and Data Transfers
Our website integrates with a number of third-party services that may set their own cookies. These providers are independent data controllers or processors under our instruction. Where these providers are located outside the European Economic Area (EEA) or the United Kingdom, we ensure appropriate safeguards are in place — typically Standard Contractual Clauses (SCCs) approved by the European Commission.
| Cookie Key | Domain | Cookie Type | Expiration | Description |
|---|---|---|---|---|
| __Secure-ROLLOUT_TOKEN | .youtube.com | Third-party | 5 months 4 weeks | - |
| wt_consent | www.gurobi.com | First-party | 11 months 4 weeks | - |
How to Manage and Control Cookies
5.1 Cookie Consent Manager
When you first visit our website, you will be presented with a cookie consent banner. You may accept all cookies, reject non-essential cookies, or configure your preferences by category. You can change or withdraw your consent at any time by clicking the "Cookie Settings" link in the footer of any page on our website.
5.2 Browser-Level Controls
Most web browsers allow you to control cookies through their settings preferences. The following links provide instructions for the most commonly used browsers:
Google Chrome: support.google.com/chrome/answer/95647
Mozilla Firefox: support.mozilla.org/en-US/kb/enable-and-disable-cookies
Apple Safari: support.apple.com/guide/safari/manage-cookies
Microsoft Edge: support.microsoft.com/en-us/microsoft-edge/delete-cookies
Opera: help.opera.com/en/latest/web-preferences/#cookies
Please note that restricting cookies may impact your experience on our website, including your ability to log into the Gurobi Customer Portal or download software licenses.
5.3 Opt-Out from Specific Providers
You may also opt out of specific third-party tracking tools directly:
Google Analytics: tools.google.com/dlpage/gaoptout (browser add-on)
Google Ads personalisation: adssettings.google.com
Meta/Facebook ad preferences: facebook.com/settings?tab=ads
LinkedIn ad opt-out: linkedin.com/psettings/guest-controls
Hotjar opt-out: hotjar.com/legal/compliance/opt-out
Network Advertising Initiative (all participating ad networks): optout.networkadvertising.org
Digital Advertising Alliance (USA): optout.aboutads.info
Your Online Choices (EU/UK): youronlinechoices.eu
5.4 Do Not Track
Some browsers include a "Do Not Track" (DNT) feature that signals to websites that you do not want your online activity tracked. Our website does not currently respond to DNT signals, as there is no consistent industry standard for their implementation. We recommend using our Cookie Consent Manager to set your preferences.
Legal Basis for Processing (GDPR)
For users in the European Economic Area (EEA), the United Kingdom, and Switzerland, Gurobi Optimization, LLC processes personal data collected via cookies on the following legal bases:
| Storage Key | Type | Category |
|---|---|---|
| lastExternalReferrerTime | local | Strictly Necessary |
| lastExternalReferrer | local | Strictly Necessary |
Your Privacy Rights
Depending on your location, you may have the following rights with respect to personal data processed through cookies.
7.1 Rights Under GDPR (EEA, UK, and Switzerland)
Right to access: You may request a copy of the personal data we hold about you. Right to rectification: You may ask us to correct inaccurate data. Right to erasure: You may ask us to delete your personal data where there is no compelling reason for us to continue processing it. Right to restriction of processing: You may ask us to suspend processing of your personal data in certain circumstances. Right to data portability: You may request a copy of your data in a structured, machine-readable format. Right to object: You may object to processing based on legitimate interests. Right to withdraw consent: Where processing is based on consent, you may withdraw it at any time without affecting the lawfulness of prior processing.
7.2 Rights Under CCPA/CPRA (California Residents)
Right to know: The right to know what personal information is collected, used, shared, or sold. Right to delete: The right to request deletion of your personal information. Right to opt-out of sale/sharing: The right to opt-out of the sale or sharing of your personal information for cross-context behavioural advertising. Gurobi does not sell your personal data; however, sharing with advertising partners for targeting purposes may constitute "sharing" under CPRA. Right to limit use of sensitive personal information: Where applicable. Right to non-discrimination: We will not discriminate against you for exercising your privacy rights.
To exercise any of your rights, please contact our Data Protection Officer at:
Email: privacy@gurobi.com
Postal Address: Gurobi Optimization, LLC — Data Protection Officer, 9450 SW Gemini Drive #90729, Beaverton, Oregon 97008, United States
EU/UK residents may also contact our EU Representative [to be designated] or lodge a complaint with your local supervisory authority (e.g., the ICO in the UK, or the relevant EU DPA).
Cookie Retention Periods
The retention period for each cookie varies and is indicated in the cookie tables in Section 3 above. As a general principle:
Session cookies are deleted automatically when you close your browser. Persistent cookies are retained for the period indicated (ranging from 1 minute to 24 months), after which they expire automatically. You may delete cookies at any time using your browser settings or our Cookie Consent Manager.
The data collected through cookies may be retained by us or third-party processors for longer periods in aggregated or anonymised form, in accordance with our Privacy Policy.
Children's Privacy
Our website and services are not directed to individuals under the age of 16 (or the applicable minimum age in their jurisdiction). We do not knowingly collect personal data from children through cookies or other tracking technologies. If you believe a child has provided personal data to us, please contact privacy@gurobi.com and we will promptly delete such information.
Changes to This Cookie Policy
We may update this Cookie Policy from time to time to reflect changes in our practices, the technologies we use, or applicable legal requirements. When we make material changes, we will:
Update the "Last Updated" date at the top of this document. Display a prominent notice on our website. Where required by law, re-request your consent.
We encourage you to review this Cookie Policy periodically. The current version will always be available at www.gurobi.com/company/legal/cookies-policy.
Contact Us
If you have any questions, concerns, or requests regarding this Cookie Policy or our data practices, please contact:
Gurobi Optimization, LLC Attn: Data Protection Officer 9450 SW Gemini Drive #90729 Beaverton, Oregon 97008 United States
Email: privacy@gurobi.com
Website: www.gurobi.com/company/legal/privacy-policy/
Phone: +1 (713) 871-9464
For EU/EEA-related inquiries: designate EU Rep
For UK-related inquiries: designate UK Rep
