Legal
Cookie Policy
Last updated: 12 April 2026
This page explains, plainly, what entries the code of stradiax.com creates in your own browser's local storage and which analytics we use. The core site does not keep those entries on Stradiax servers: your browser creates them and they live on your device. As product analytics we use Microsoft Clarity and Google Analytics (the latter through Google Tag Manager), and they are activated only if you explicitly accept them in the consent notice. We do not use ad pixels or commercial profiling tools.
1. What is a cookie?
A "cookie" is a small file your browser stores on your device when a website instructs it to. The technical term also covers other browser-side local storage mechanisms such as localStorage and sessionStorage, which the Spanish Data Protection Agency (AEPD) treats as equivalent. This policy applies to all of them. The functional entries described in section 2 live on your device and are not kept on Stradiax or third-party servers; the opt-in analytics cookies in section 3 do involve a third party (Microsoft or Google) and are only created if you accept them.
2. What your browser stores locally
The functional and strictly necessary entries in the table below are created by this site's code in your own browser, on your own device. We do not keep them on our servers: we don't have them stored at all. Of those, only two (the chat items) transit to our backend transiently during a conversation, and only for as long as the request takes to process; the others never leave your browser. The last two rows (_ga, _ga_*) are opt-in analytics cookies that do involve Google and are detailed in section 3.
| Name | Type | Purpose | Duration | Category |
|---|---|---|---|---|
stradiax-hero-rot |
localStorage | Rotates the main hero message across 3 variants so each visit sees a different angle on the value proposition. | Persistent until you clear your browser storage. | Functional (exempt from consent per Article 22.2 Spanish LSSI-CE). |
stradiax_chat_session |
sessionStorage | Random session identifier for the chat assistant. Lets the backend apply anti-abuse rate limits without knowing who you are. | Cleared when you close the browser tab. | Functional. |
stradiax_chat_history |
sessionStorage | Stores the recent history of your conversation with the assistant so context is preserved between messages. | Cleared when you close the browser tab. | Functional. |
stradiax-consent |
localStorage | Remembers your choice from the cookie notice so we don't show it on every visit. | 12 months, unless you revoke your choice. | Strictly necessary. |
stradiax_roi_unlocked |
HTTP cookie (HttpOnly, Secure, SameSite=Lax) | Set when you actively request access to the ROI calculators (via the unlock form, the contact form or a meeting booking). Lets the server serve you the calculator content without making you identify yourself again on every visit. Contains a signed identifier, no human-readable personal data. | 180 days from your last request. | Strictly necessary for the service you requested. |
_ga |
HTTP cookie (domain .stradiax.com) |
Created by Google Analytics (loaded via Google Tag Manager) to distinguish visitors in a pseudonymised way and measure aggregate site usage. Only created if you accept analytics. | Up to 2 years from your last visit. | Analytics (opt-in, requires your consent). |
_ga_* |
HTTP cookie (domain .stradiax.com) |
Created by Google Analytics 4 to persist the measurement session state. The suffix is the data stream identifier. Only created if you accept analytics. | Up to 2 years from your last visit. | Analytics (opt-in, requires your consent). |
Two important clarifications:
- What never leaves your browser.
stradiax-hero-rotandstradiax-consentare read and written directly by the site's JavaScript on your device. They do not travel across the network, they do not reach our servers, and we have no way to know what values they hold. - What transits to the backend, and for how long.
stradiax_chat_sessionandstradiax_chat_historyare attached to each chat message so the backend can apply the anti-abuse rate limit and keep the conversation context. We do not persist them: they are read to generate the reply and discarded as soon as the request finishes. They continue to live in your browser until you close the tab, and only then are they fully removed.
3. Product analytics (opt-in)
If you accept in the consent notice, we load two product analytics tools: Microsoft Clarity and Google Analytics (through Google Tag Manager). If you choose Essentials only, neither is loaded and none of their cookies is created.
3.1. Microsoft Clarity
We load Microsoft Clarity, a product analytics tool we use to understand how visitors navigate the site and improve it. Clarity anonymously captures mouse movement, clicks, scroll, heatmaps and session recordings. It does not capture passwords or data entered in sensitive form fields, and recordings are limited to interaction with the site.
The controller of this data is Microsoft Corporation (Redmond, WA, USA), acting as joint controller or processor depending on context. Microsoft uses this data per its own privacy statement and the Clarity cookie list. Transfers to the US are covered by the EU Data Privacy Framework (DPF) and, as a fallback, by Standard Contractual Clauses.
The cookies and storage entries Clarity creates in your browser (domains clarity.ms, c.bing.com) typically last up to 12 months. If you choose Essentials only, the Clarity script is not loaded and none of those cookies is created.
3.2. Google Analytics (via Google Tag Manager)
We load Google Tag Manager (container GTM-WW7LCXSR), which in turn activates Google Analytics 4. We use it to measure, in aggregate, which pages are visited, where traffic comes from and how the site is navigated, in order to improve it. We do not use this data for advertising or commercial profiling, nor do we cross it with your identity.
The controller of this data is Google LLC (Mountain View, CA, USA), acting as processor or joint controller depending on context, under its privacy policy and Google cookie information. Transfers to the US are covered by the EU-US Data Privacy Framework (DPF) and, as a fallback, by Standard Contractual Clauses.
The cookies Google Analytics creates in your browser (_ga, _ga_*; domains googletagmanager.com, google-analytics.com) typically last up to 24 months. If you choose Essentials only, Google Tag Manager is not loaded and none of those cookies is created. You can also install the Google Analytics opt-out browser add-on.
We do not install Meta Pixel, LinkedIn Insight Tag or any other advertising tracker. Web fonts and icons are served from public providers (Google Fonts and the Font Awesome CDN), but we do not use cookies from those services to identify you.
4. How to manage your consent
The first time you visit the site, a notice appears with two options:
- Accept all: the functional entries described above are activated and Microsoft Clarity and Google Analytics (via Google Tag Manager) are loaded for usage analytics.
- Essentials only: the site runs with the strict minimum. Neither Clarity nor Google Tag Manager is loaded and none of their cookies is created.
You can withdraw your consent at any time by clearing stradiax-consent from your browser developer tools, or by wiping site storage from your browser's privacy settings. The notice will reappear on your next visit and you can choose again.
5. How to block cookies from the browser
Every browser lets you control local storage and cookies from its privacy settings. Official links:
6. Contact
For questions about this policy or to exercise your data protection rights, write to the Data Protection Officer at ![dpo[arroba]stradiax[punto]com — escríbelo manualmente](/assets/emails/dpo-stradiax.svg)
.