Cookie Policy
Last updated: October 30, 2026
This Cookie Policy explains how OpenTrain AI (“OpenTrain,” “we,” “us,” or “our”) uses cookies and similar technologies on our websites and services (collectively, the “Platform”). It also explains the choices you have and how you can manage them.
This Cookie Policy should be read together with our Privacy Policy, which explains how we collect, use, and share personal information more broadly.
1. What cookies are
Cookies are small text files that a website places on your device (computer, phone, tablet) when you visit. Cookies help websites function, remember preferences, keep you signed in, and understand how people use the site.
Cookies are commonly described as:
- First-party cookies: set by OpenTrain (the site you are visiting).
- Third-party cookies: set by other companies whose tools or content are used on the Platform (for example, advertising or analytics providers).
- Session cookies: expire when you close your browser.
- Persistent cookies: remain on your device until they expire or you delete them.
2. Similar technologies we use
In addition to cookies, we and our service providers may use:
- Pixels (web beacons): small files or code that help measure whether you interacted with content (for example, visiting a page, clicking a link, or seeing an ad).
- Tags and scripts: code that enables site functionality, analytics, and advertising measurement.
- Local storage: browser storage used to remember settings or support site features (similar to cookies, but stored differently).
- SDKs (software development kits): commonly used in web and mobile experiences to support analytics or advertising functions.
For simplicity, we refer to all of these as “cookies” in this Policy.
3. Why we use cookies
We use cookies for the purposes below. Some cookies are essential to make the Platform work. Others help us improve performance, personalize your experience, and measure and improve our marketing.
A. Strictly necessary cookies (required)
These cookies are needed for the Platform to function and generally cannot be turned off in our systems. They are usually set in response to actions you take, such as:
- Maintaining your session and keeping you logged in (especially in authenticated areas of the Platform)
- Enabling core features like navigation, page load balancing, and form submissions
- Security, fraud prevention, and abuse detection
- Remembering your cookie consent choices (where required)
If you disable these cookies in your browser, parts of the Platform may not work.
B. Functional cookies (preferences and features)
These cookies help the Platform remember your choices and provide enhanced functionality, such as:
- Remembering preferences (for example, region, language, or other settings)
- Supporting embedded content or tools you choose to interact with
C. Performance and analytics cookies
These cookies help us understand how the Platform is used so we can improve it. They may collect information such as:
- Which pages are visited and how users navigate through the site
- Approximate location (derived from IP address), device and browser type
- Performance metrics (page load times, errors)
- Which features are used most often
We may also use cookies for testing and optimization (for example, measuring different versions of a page or feature to learn what works best).
If you allow analytics cookies, we may also record a masked replay of a page that loads slowly or shows an error: the layout, clicks, scrolling and load timing. All text and form fields are masked, and we do not record what you type. We use replays only to find and fix slow or broken pages, never to evaluate freelancers, attendance or pay. PostHog records replays on www.opentrain.ai and Sentry on app.opentrain.ai; we delete replays after 30 days. Rejecting analytics cookies in the cookie banner, or a Global Privacy Control signal, stops replays. See section 8.4 of our Privacy Policy.
D. Advertising and marketing cookies
We use advertising cookies to support and measure our marketing, including ads on platforms like Google and Meta (Facebook/Instagram). These cookies and pixels may be used to:
- Measure ad performance (for example, whether someone who clicked an ad later visited the site or created an account)
- Build audiences for remarketing (showing ads to people who previously visited our site)
- Limit how often you see the same ad (frequency capping)
- Help prevent fraud and improve ad safety
Advertising partners may use these technologies to collect information about your online activity over time and across different websites or apps.
E. Cookies and tools on www.opentrain.ai
On our marketing website, www.opentrain.ai, only the strictly necessary consent cookies below are set before you make a choice in the cookie banner. Analytics cookies and tools load only after you allow analytics. Advertising tags load only after you allow advertising. The live chat loads only after you allow functional cookies. If your browser sends a Global Privacy Control signal, we treat it as a rejection of analytics and advertising, even if you allowed them earlier.
| Name or tool | Provider | Category | Purpose | Lifetime |
|---|---|---|---|---|
probo_consent | OpenTrain (cookie banner by Probo) | Strictly necessary | Remembers your cookie choices | Set by the banner, up to the consent period shown in it |
opentrain_ | OpenTrain | Strictly necessary | Shares your analytics choice (“allowed” or “denied”) with app. | Same as probo_ |
ot_locale_ cookie and local storage | OpenTrain | Strictly necessary | Remembers the site language you chose | 12 months |
ot_locale_ cookie and local storage | OpenTrain | Strictly necessary | Remembers that you closed the language suggestion | 12 months |
starlight-theme local storage | OpenTrain | Strictly necessary | Remembers light or dark mode | Until you clear it |
_ot_aid | OpenTrain | Analytics | Random visitor ID for first-party attribution | 12 months |
_ot_sid | OpenTrain | Analytics | Random session ID for first-party attribution | 30 minutes; a new one is set on the next visit after it expires |
_ot_attrib | OpenTrain | Analytics | First visit: campaign labels (UTM), ad click IDs, the referring site’s domain and a source label (such as search, AI assistant or direct), the first page path and the time, signed by us | 30 days |
_ot_click | OpenTrain | Analytics | Last ad click ID (for example gclid) | 30 days |
ph_* cookie and local storage | PostHog | Analytics | Product analytics: pages viewed and buttons clicked, and masked replays of slow pages (section 3.C) | 12 months |
| Trustpilot review widget | Trustpilot | Analytics | Shows our Trustpilot rating. Without consent you see a plain link instead | Set by Trustpilot |
cw_conversation (Chatwoot live chat) | Chatwoot | Functional | Keeps your chat with our support team open across pages. Without consent the chat does not load | 12 months |
| Google tag (gtag.js) | Advertising | Measures ad performance | Set by Google | |
| Meta Pixel | Meta | Advertising | Measures ad performance | Set by Meta |
| LinkedIn Insight Tag | Advertising | Measures ad performance | Set by LinkedIn | |
| Reddit Pixel | Advertising | Measures ad performance | Set by Reddit |
Before we send analytics events, we remove names, email addresses, phone numbers and other unrecognized parameters from page addresses.
4. Cookies set by platforms we use (Webflow, Bubble, and others)
Parts of our Platform may be built or hosted using tools such as Webflow (for marketing pages) and Bubble (for application functionality). These platforms may place cookies that are necessary for their infrastructure to work, such as cookies used for:
- Security and performance
- Session management and authentication (for logged-in areas)
- Load balancing and reliability
- Basic analytics or debugging
We may also use other embedded services (for example, review widgets, video players, customer support tools, or payment-related services). When these load, they may set cookies or similar technologies as described in this Policy.
5. How long cookies remain on your device
Cookie lifespans vary:
- Session cookies: deleted when you close your browser.
- Persistent cookies: remain until they expire or you delete them. Expiration can range from days to months (and sometimes longer) depending on the cookie and purpose.
6. Your choices and how to manage cookies
You have several options:
A. Cookie banner or preference tool (where available)
Depending on your location, you may see a cookie banner or preference tool that lets you accept or reject certain categories of cookies (for example, analytics or advertising cookies). You can also change your choices later if we provide a “Cookie Settings” link on the Platform.
B. Browser controls
Most browsers let you:
- See which cookies are set
- Delete cookies
- Block cookies (all cookies or only third-party cookies)
- Set rules for certain sites
If you block or delete cookies, you may need to reset preferences, and some features (especially login and account-related functions) may not work properly.
C. Advertising choices
You can also manage targeted advertising settings directly through providers (for example, Google and Meta) and through your device settings (for example, mobile advertising identifiers). Note that opting out of targeted advertising does not mean you will stop seeing ads. It means ads may be less relevant.
7. Targeted advertising and “sale” or “sharing” under some US state laws
We do not sell personal information for money.
However, using third-party advertising cookies and pixels (such as those used for measuring and improving advertising on Google and Meta) may involve sharing certain identifiers and online activity information with advertising partners. Under some US state privacy laws, this may be considered a “sale” or “sharing” of personal information for targeted advertising.
Where required, you can opt out by adjusting cookie preferences (if available) or using other controls described in this Cookie Policy and our Privacy Policy.
8. Do Not Track and similar signals
Some browsers offer “Do Not Track” signals. Because there is not a consistent industry standard for how to interpret these signals, the Platform may not respond to them.
Some jurisdictions also recognize signals like Global Privacy Control. On www.opentrain.ai we honor Global Privacy Control as a rejection of analytics and advertising cookies, as described in section 3.E. Elsewhere, where required by applicable law, we will process recognized opt-out preference signals.
9. Changes to this Cookie Policy
We may update this Cookie Policy from time to time. If we make changes, we will update the “Last updated” date above. If changes are material, we may provide additional notice on the Platform.
10. Contact us
If you have questions about this Cookie Policy or our use of cookies, contact us at:
- contact@opentrain.ai
- For support-related questions: support@opentrain.ai