1. What Are Cookies
Cookies are small text files placed on your device when you visit a website. They help the website function correctly, remember your preferences, and give us analytics about how the site is used. Similar technologies include web beacons, pixels, and local storage — this Policy covers all of them.
This Cookie Policy applies to the website at calculusresearch.io, operated by Calculus Management LLC (d/b/a Calculus Research). It should be read alongside our Privacy Policy.
2. Cookie Categories We Use
Essential Always active — no consent required
These cookies are strictly necessary for the website to function. They cannot be switched off without breaking core functionality.
| Cookie / Technology | Provider | Purpose | Duration |
|---|---|---|---|
| __cf_bm | Cloudflare | Bot management and DDoS protection | 30 minutes |
| cf_clearance | Cloudflare | Security challenge clearance | Session / 1 year |
| HSID, SSID (portal) | HubSpot | Session authentication for authenticated portal sections | Session |
Analytics Require consent (UK/EU)
These cookies help us understand how visitors use the Site so we can improve it. All data is aggregated and anonymized for reporting.
| Cookie / Technology | Provider | Purpose | Duration |
|---|---|---|---|
| __hstc, hubspotutk, __hssc, __hssrc | HubSpot | Tracks visitor sessions, identifies returning visitors, ties form submissions to visitor history | Up to 13 months |
| _ga, _ga_* | Google Analytics | Distinguishes users, tracks pageviews and sessions | Up to 2 years |
| _gid | Google Analytics | Distinguishes users (short-lived) | 24 hours |
Functional Require consent (UK/EU)
These cookies enable enhanced functionality and personalization, such as remembering form state or preferences.
| Cookie / Technology | Provider | Purpose | Duration |
|---|---|---|---|
| messagesUtk | HubSpot | Identifies browser for chat widget continuity | 13 months |
| hs-messages-* | HubSpot | Stores chat conversation state | Session / persistent |
3. Third-Party Resources (Non-Cookie)
The following third-party services are loaded by our pages and may process your IP address or set their own cookies:
- Google Fonts — font delivery via Google's CDN; Google may log request metadata. Font files are loaded directly from Google's servers.
- Font Awesome via Cloudflare CDN — icon fonts; Cloudflare may log request metadata.
- Tailwind CSS CDN (if applicable) — stylesheet delivery; CDN provider may log requests.
We do not use third-party advertising cookies or retargeting pixels.
4. Your Choices and Managing Cookies
Cookie Banner (UK / EU Visitors)
When you first visit the Site from the UK or EU, a cookie consent banner will appear. You can accept all, reject non-essential, or manage individual categories. Your preference is stored so you are not asked again on the same browser for 12 months.
Browser Settings
You can control cookies through your browser settings. Most browsers allow you to:
- View and delete cookies currently stored
- Block cookies from specific sites or all sites
- Set preferences for future cookie acceptance
Note: blocking essential cookies will break website functionality. Links to browser cookie settings:
HubSpot Opt-Out
To opt out of HubSpot tracking specifically, visit: HubSpot's Privacy Policy for opt-out options.
Google Analytics Opt-Out
Install the Google Analytics opt-out browser add-on: tools.google.com/dlpage/gaoptout
5. Legal Basis for Cookie Use (UK / EU)
Under the UK Privacy and Electronic Communications Regulations (PECR) and the EU ePrivacy Directive:
- Essential cookies are used on the basis of our legitimate interest in operating a functioning website — consent is not required
- Analytics and functional cookies are used only with your freely given, informed consent via our cookie banner
You have the right to withdraw consent at any time by clearing your cookies and declining via the consent banner on next visit, or by contacting us.
6. Changes to This Policy
We may update this Cookie Policy from time to time as we add or remove cookies or as laws change. The "Effective Date" at the top indicates the current version. Significant changes will be communicated via the cookie banner or a notice on the Site.
7. Contact
Calculus Management LLC (d/b/a Calculus Research)
finance@calculusresearch.io
Subject line: Cookie Policy Inquiry