NeuroFiCookie policy
Last updated: October 27, 2026
NeuroFi stores your preferences in your browser and sets no analytics or advertising cookies of its own. Cloudflare may use technical security cookies. The site loads no third-party components: charts, quotes and logos are served from its own domain.
1. Browser local storage
When you mark a favorite, add a stock to the comparison, change columns or choose a language, the site saves it in your browser’s localStorage to remember it on your next visit. This data never leaves your device, except the list of alerts, which is sent to the server only if you turn on push alerts (see the privacy policy).
| Key | Purpose | Duration |
|---|---|---|
sp-scanner:favorites | Stocks marked as favorites | Until you delete it |
neurofi:market, neurofi:recent-markets | Last market chosen, which the home page opens with, and the recent ones in the market picker | Until you delete it |
neurofi:list:… (session storage) | Rows loaded and place in the list, to come back to the same spot | Until the tab closes |
sp-scanner:compare | Up to four stocks in the comparison | Until you delete it |
sp-scanner:compare-dividends | Compare by price or with dividends | Until you delete it |
sp-scanner:chart-dividends | Price charts with or without dividends | Until you delete it |
sp-scanner:columns:… | Visible columns in each table and their order | Until you delete it |
neurofi:lang | Chosen language (Spanish or English), if you change it | Until you delete it |
neurofi:crypto:favorites | Cryptocurrencies marked as favorites | Until you delete it |
neurofi:chart-levels, neurofi:chart-daily, neurofi:chart-weekly, neurofi:chart-broken, neurofi:chart-broken-daily, neurofi:chart-broken-weekly | Chart supports and resistances: whether they show, how many daily and weekly a side, and whether broken ones too, and how many | Until you delete it |
neurofi:alerts | Copy of the push alerts turned on in this browser | Until you delete it |
If you turn on alerts, the browser also registers a NeuroFi service worker (sw.js): a small program that only shows the notifications and opens the stock page when you tap one. It stores no data or cached content, and it goes away when you clear the site’s data.
2. Cloudflare technical cookies
The site is served through Cloudflare, which may set strictly necessary cookies to tell legitimate traffic from bots, such as __cf_bm (30 minutes), or cf_clearance if you are shown a security check. They are not used to track you or for advertising. More information in Cloudflare’s cookie policy.
3. How to delete this data
You can delete it at any time from your browser settings: look for “Clear browsing data” or “Site data” and remove the data for this domain. You can also block it. The site will keep working, but it will not remember your preferences.
4. Changes
If cookies that require consent, such as analytics cookies, are added in the future, this policy will be updated and your permission will be requested before setting them.