Cookie policy
Last updated: 24 October 2026
This is a translation provided for convenience. In case of any discrepancy, the Spanish version prevails.
This Policy explains which cookies AIM CODEX uses. The Service is designed to work with the bare minimum: we only use strictly necessary technical cookies. We do not use analytics, advertising or third-party tracking cookies.
1. What is a cookie?
A cookie is a small file that a website stores in your browser to enable or improve its operation. Depending on their purpose, cookies may be technical (necessary) or non-technical (preferences, analytics, advertising).
2. Cookies we use
| Cookie | Purpose | Type | Duration |
|---|---|---|---|
| codex_lang | Remember the language you have explicitly chosen (a link with ?lang=) so pages are served to you in that language. | Technical (preference you choose) | 365 days |
| Document opened (cdxv_…) | Remember that this browser has already opened a specific shared document, so another view is not deducted from its limit and you can accept or acknowledge it. A signed value with no personal data; it is only sent to that document’s address. | Technical (necessary) | 30 days |
| Document access (cdxd_…) | Remember that the access code of a specific document has been entered, so it is not requested again. A signed value with no personal data; it stops working if the issuer changes the code. | Technical (necessary) | 30 days |
| __cf_bm (paddle.com, third party) | Only when you pay: Cloudflare bot protection on Paddle’s checkout. | Technical (necessary for payment) | 30 minutes |
We use no session cookie: the console session is kept in browser storage (table in section 3). Because they are strictly technical and necessary to provide the Service, these cookies are exempt from prior consent under Article 22.2 of the LSSI, and are disclosed here for transparency.
3. Third-party cookies and browser storage
We do not use analytics, advertising or social media cookies, nor do we share browsing information with third parties for those purposes.
Only when you decide to pay (when you press a payment button or open a payment link) is the Paddle checkout loaded (our reseller, which charges in its own name); it may use its own technical cookies, necessary for payment and fraud prevention (such as __cf_bm); they are governed by Paddle’s policy. While you are only looking at prices, nothing from Paddle is loaded.
Besides cookies, the website stores only these technical items in your browser (local and session storage). They are not used to track you and do not leave your browser, except where stated.
| Key | Purpose | Where | Duration |
|---|---|---|---|
| cdx_cookie_ok | That you have closed the cookie notice. | Local storage | Until you delete it |
| aim-tema | The theme (light or dark), if you have changed it. | Local storage | Until you delete it |
| codex_lang_aviso | That you have closed the notice offering the page in your language. | Local storage | Until you delete it |
| codex_presupuesto_borrador | The quote you started on /plantilla-presupuesto and asked to send, so it opens pre-filled in your account. Only saved if you press the send button. | Local storage | Until you open it in your account or delete it; after 7 days it is no longer used |
| codex_token, codex_exp, codex_tenant | Keep you signed in to the console: the signed session token, its expiry and your account. It is only sent to our server, to identify you. | Local storage | 12 hours at most; deleted when you sign out |
| codex_acc_… | Only if you accept or acknowledge a document from a general link: your name, the date and the link to the receipt, so you see your own receipt when you come back. It is not sent anywhere. | Local storage | Until you delete it |
| codex_compartido | The document you drop on the home page to seal it, while it passes to the console; deleted as soon as the console picks it up. | Session storage | Until you close the tab |
| cdxRecarga | Prevent reload loops if the console does not finish loading. | Session storage | Until you close the tab |
| claridad_sesion, claridad_version | Only if you take part in a voluntary survey: a random identifier for that survey and the variant you see; sent together with your anonymous answers. | Session storage | Until you close the tab |
| codex-v1 cache | If you install the app: the icons and the local verification script, so it works offline. Never documents or account data. | App cache | Until you clear it or it is updated |
4. How to manage or delete cookies
You can allow, block or delete cookies through your browser settings. Please note that, as these are necessary technical cookies, blocking them may prevent the Service from working properly or prevent you from signing in. Chrome, Firefox, Safari and Edge provide instructions in their help centres.
5. Updates
If we ever add non-technical cookies, we will update this Policy and implement a prior consent mechanism by category. For any questions: hola@aim-codex.ai.