gexDataSale privacy

Applies to the gexDataSale web app (repository name gexDataSale): a static site with serverless functions on Vercel that sells historical intraday options gamma-exposure (GEX) data. Today it offers one dataset, “SPX GEX levels, full history”, as a one-time US$49 download, and free sample files. The site’s footer and its /privacy page link here.

This service is operated by llab08, Hong Kong, and these terms are governed by the laws of Hong Kong. The section below explains this product’s data handling and current availability.

Checkout is switched on separately. While it is off, as on the date below, the buy button is disabled and no purchase data is collected. The free samples are available either way.

Summary

No accounts and no sign-in. No ads, no advertising SDK, no cookies set by the site and, as of the date below, no analytics or other third-party script. If a future version adds a cookie-less analytics script, this section is updated first.

Purchases

Payment runs on Stripe Checkout. Card details, your e-mail address and any billing details Stripe asks for are entered on Stripe’s page, which sets its own cookies; card details never reach us. We keep no order database of our own: an order is Stripe’s checkout session and payment record, and we add to that record only how many download links have been issued, when the download window started and when the delivery e-mail was sent. Stripe keeps payment records under its own terms. Write to the address below with any request about your order data.

Downloads and delivery e-mail

After payment, the download page, reached through a link that carries your checkout session id, shows your e-mail address in masked form and Stripe’s receipt link, and issues download links. Each is a signed link to the dataset file in our private Cloudflare R2 storage, valid for 24 hours; an order can issue up to five, and none is issued once a payment is refunded or disputed. Anyone who has the download-page link can use it, so keep the e-mail private. Cloudflare R2 sees the network address of whoever downloads. We send one delivery e-mail through Resend, from hello@llab08.com to the address you gave at checkout, with the item, amount, date, the download-page link and the link rules.

Free samples

The sample files are static files that anyone can download without signing up. We keep no record of who downloads them beyond ordinary access logs.

Hosting and logs

The site and its functions run on Vercel, and the dataset file is kept in Cloudflare R2. Hosts may keep short access logs (request path, time, status, client address); we do not use them to identify anyone.

Children

The service is not directed at children under 13 and does not knowingly collect personal data from them.

Contact: hello@llab08.com · Updated 11 October 2026 · All privacy notices