Cookies and local storage

Last updated: 11 August 2026

The short version

hsmart.dev sets one cookie, and it only remembers which language you are reading in. Audience measurement is first-party and cookieless: no Google Analytics, no advertising trackers, no profile that follows you to other sites. One page, the contact page, embeds a booking calendar from Cal.com, and that is the only third party that loads in your browser.

1. What this site stores on your device

All of it is first party, and none of it is used for advertising:

  • •NEXT_LOCALE (cookie): the language you are reading in, so a link you share keeps its language. Strictly functional.
  • •i18nextLng (local storage): the same language preference, used by the translation library in your browser.
  • •hsmart_has_seen_chat_help (local storage): remembers that you have already been shown the assistant hint once, so it stops nagging you.
  • •hs_session and hs_attr (session storage): a random id for the current tab and, if you arrived through a campaign link, where that link came from. Both are erased the moment you close the tab.

2. How audience measurement works

Page views and a handful of conversion events are counted by our own server and stored in our own database. For each event we keep:

  • •The page you looked at and the site language.
  • •The random per-tab id described above, so two page views in one visit are not counted as two visitors.
  • •A coarse device class (phone, tablet, desktop) and country.
  • •The referring site and campaign tags, if you arrived through a tagged link.

No IP address is stored against these events, nothing is shared with an analytics company, and the random id cannot be linked to you or followed to any other website.

3. Third parties that load in your browser

Only one, and only on one page:

  • •Cal.com, on the contact page: the booking calendar is embedded from app.cal.com. Loading it means Cal.com receives your IP address and can set its own storage inside that embed. Their privacy policy: https://cal.com/privacy
  • •Cloudinary: serves images. It receives the request for the image file and nothing else.
  • •Everything else, including the newsletter and contact emails sent through Resend and the database hosted on Neon, happens on our servers after you submit something, never in your browser.

The calendar loads together with the contact page. If you would rather not load Cal.com at all, just email henoch@hsmart.dev instead of opening that page.

4. What this site does not do

For the avoidance of doubt:

  • •No Google Analytics. It was removed on 6 August 2026.
  • •No advertising or retargeting pixels, from anyone.
  • •No cross-site tracking, no fingerprinting, no data sold or shared with data brokers.
  • •No cookie consent banner, because nothing here requires consent to be set.

5. Staying in control

You can remove any of it at any time:

  • •Your browser settings let you clear cookies and site data for hsmart.dev, which removes everything listed above.
  • •Closing the tab already erases the analytics session ids by itself.
  • •Blocking third-party content in your browser will stop the Cal.com calendar from loading; the rest of the site works normally.

Questions

Anything unclear, or you want your data removed? Write to henoch@hsmart.dev