Last updated: the publication date of this page.

This page explains how KiemTienTuWeb.com collects, uses and protects your information. By using this website you agree to the practices described below.

1. Information we collect

1.1. Information you provide

  • Email address — when you subscribe to the newsletter or request a free resource.
  • Name, email, phone number, message — when you submit the contact form.
  • Account details — if you register an account.

1.2. Information collected automatically

  • Browser type, operating system and device.
  • Pages viewed and time of visit.
  • Referring page.
  • Approximate location at country level.

About IP addresses: we do not store raw IP addresses. Every IP is one-way hashed before storage and used only for spam prevention and abuse detection. The original address cannot be recovered from the stored value.

2. How we use information

  • Send the resources you request and the newsletter you subscribed to.
  • Respond to your questions and support requests.
  • Improve our content and the site experience.
  • Analyse traffic in aggregate, without identifying you personally.
  • Prevent spam, abuse and unauthorised access.

We do not sell, rent or trade your personal information to third parties for marketing purposes.

3. Cookies

Cookies are small text files stored on your device. We use them for:

  • Essential cookies — session, language preference, form protection. These cannot be disabled without breaking the site.
  • Analytics cookies — to understand which pages are read and where visitors leave.
  • Advertising cookies — placed by third parties, see section 4.

You can delete or block cookies in your browser settings. Blocking essential cookies may prevent some features from working.

4. Third-party advertising

4.1. Google AdSense

This website uses Google AdSense to display advertising:

  • Google, as a third-party vendor, uses cookies to serve ads on this site.
  • Google uses advertising cookies to serve ads based on your prior visits to this website and other websites on the Internet.
  • Other third parties may also place cookies or similar technologies when serving ads.

How to opt out of personalised advertising:

We do not control third-party ad content and are not responsible for their privacy practices.

4.2. Google Analytics

We use Google Analytics to understand how the site is used. It collects aggregated data and does not identify you personally. You may opt out using Google''s official browser add-on.

5. Affiliate links

Some links on this site are affiliate links. If you click one and complete a purchase, we may earn a commission at no additional cost to you. The provider may set a cookie to attribute the referral. See our Affiliate Disclosure page.

6. Data security

We apply reasonable technical measures: HTTPS encryption, one-way password hashing, restricted database access and regular backups. However, no method of transmission over the Internet is completely secure, and we cannot guarantee absolute security.

7. Retention

  • Newsletter emails — kept until you unsubscribe.
  • Contact messages — kept for up to 24 months.
  • Analytics data — per Google Analytics default retention.

8. Your rights

You have the right to:

  • Ask what information we hold about you.
  • Request correction of inaccurate information.
  • Request deletion of your personal data.
  • Unsubscribe from emails at any time using the link in every email.
  • Withdraw consent you previously gave.

To exercise these rights, email hello@kiemtientuweb.com. We respond within 30 days.

9. Children

This website is not directed at children under 13 and we do not knowingly collect their information. If you believe your child has provided us information, please contact us for removal.

10. Changes

This policy may be updated. Changes will be posted on this page with a new date. Please review it periodically.

11. Contact

Questions about this policy: hello@kiemtientuweb.com