Cookie Policy
Last Updated: December 2025
What Are Cookies?
Cookies are small text files stored on your device when you visit a website. They help the site remember your preferences and improve your experience. ETFSift uses cookies to provide essential functionality and understand how our site is used.
Cookies We Use
Essential Cookies
These cookies are necessary for the website to function properly. They include: • Theme preference (dark/light mode) — stored locally in your browser • Language preference (English/中文) — stored locally in your browser These preferences are stored using localStorage, not traditional cookies, and are never transmitted to our servers.
Analytics Cookies
We may use analytics tools to understand how visitors interact with ETFSift, including: • Which ETF comparison pages are most popular • How users navigate between pages • General geographic region of visitors This data is aggregated and does not identify individual users.
Third-Party Cookies
Our site may load resources from third-party services: • Stock data APIs (e.g., Tencent Stock API, Nasdaq API) for real-time ETF prices • OpenAI API for AI-powered comparison analysis These services may set their own cookies. We do not control third-party cookie practices.
Managing Cookies
You can control cookies through your browser settings: • Chrome: Settings → Privacy and Security → Cookies • Firefox: Settings → Privacy & Security → Cookies • Safari: Preferences → Privacy → Cookies • Edge: Settings → Cookies and Site Permissions Note: Disabling essential cookies may affect website functionality, such as theme and language preferences not being saved.
Local Storage
In addition to cookies, ETFSift uses browser localStorage to store: • Your theme preference (dark or light mode) • Your language preference (English or Chinese) This data stays on your device and is not transmitted to us. You can clear it through your browser's developer tools or by clearing site data.
Changes to This Policy
We may update this Cookie Policy from time to time. Any changes will be posted on this page with an updated revision date.
Contact Us
If you have questions about our use of cookies, please contact us at contact@etfsift.com.