Privacy Policy

1. Information we collect

You can use the service without signing up or providing your real name. If you contact us by email, we receive your email address and message to respond.

Your IP address, access time, browser and device information, and pages visited may be generated and collected automatically while you use the service.

Publishing a post, comment or custom ETF sends your nickname, content, disclosed holdings and return, and timestamp to the server and makes them public. Deletion passwords are stored as hashes. Likes and votes are also sent to the server. Do not publish sensitive personal details.

2. How we use it

Collected information is used only to operate the service, analyze usage to improve it, serve ads, and prevent abuse.

We do not use it to identify or single out individual users.

3. Stored only in your browser

Your watchlist, saved portfolios and quantities, recent searches, theme, color and language preferences are stored in localStorage. Tickers needed for analysis are sent to the server to retrieve prices and holdings. Custom ETFs become public only when you choose to publish them. Nicknames, likes and votes are also sent when you use those features.

Save this screen creates an image in your browser and downloads it to your device without uploading it to the server. Share passes a link containing the ETF ticker and selected language.

Clearing your browser's site data deletes all of it immediately. We cannot read or restore it.

4. Cookies & advertising (Google AdSense)

This service is preparing to display Google AdSense advertising. Ads may appear on pages where ad units are enabled after approval.

Google and third-party vendors may use cookies to serve ads based on your visits to this site and other websites. Google's advertising cookies may enable personalized ads from Google and its partners.

You may refuse cookies in your browser settings and opt out of personalized ads at google.com/settings/ads. Refusing cookies does not affect the analysis features of this service.

5. Usage analytics (Google Analytics · Microsoft Clarity)

We use Google Analytics 4 to understand visitor numbers and page usage.

Google Analytics processes cookie identifiers, device and browser information, page visits and activity. We do not describe all of this as anonymous data. You can opt out with Google's browser add-on at tools.google.com/dlpage/gaoptout.

Microsoft Clarity analyzes navigation, clicks and scrolling. Page text, images and input values are masked; we do not put passwords, emails, phone numbers or other user-entered content into analytics events. Tags run only on the HTTPS production domain. URLs containing free-text searches, private portfolio identifiers or unknown parameters are excluded, and GA4 receives URLs without queries or fragments.

Clarity recordings are disabled when the referring URL contains a query or fragment. You can decline analytics with browser tracking protection without losing access to ETF features.

6. International transfers

The services in sections 4–5 (Google AdSense and Analytics, and Microsoft Clarity) operate servers outside Korea, so related information may be processed abroad. You can decline via browser cookie and tracking controls or Google's opt-out.

7. Retention

Access logs are used only to operate the service and investigate faults, and are discarded no later than three months after they are written (the server's log rotation may delete them sooner).

Community posts and comments are kept until you delete them or request their deletion under section 8.

Retention by Google Analytics, AdSense and Microsoft Clarity follows those providers' policies and project retention settings.

8. Your rights

You may request deletion of posts or comments you wrote at any time, and you can delete browser-stored data yourself.

Send requests to the contact below and we will act without delay. Because the service runs without accounts, we cannot verify identity — please include information that identifies the item (such as the post URL).

9. Sharing

We do not sell your information. Advertising and analytics may transmit the information described above to Google or Microsoft, and content you choose to publish is public. Other disclosures require a legal basis.

10. Children's privacy

This service is not directed at children under 14, and we do not knowingly collect their personal information.

11. Contact

Privacy officer: ETF Scanner operator

Contact: kospi9988@gmail.com

Korean users may also contact the Privacy Infringement Report Center (privacy.kisa.or.kr, 118) or the Personal Information Dispute Mediation Committee (kopico.go.kr, 1833-6972).

12. Changes

If this policy changes we will post the effective date and the changes on this page, giving at least 7 days' notice before changes that disadvantage users take effect.