Privacy Policy
Last updated: December 5, 2025
At Periodic Table Online ("we," "our," or "us"), we are committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website periodictableonline.com (the "Site"). Please read this privacy policy carefully. If you do not agree with the terms of this privacy policy, please do not access the Site.
Information We Collect
Automatically Collected Information
When you visit our Site, we may automatically collect certain information about your device, including:
- Browser type and version
- Operating system
- IP address (anonymized)
- Pages visited and time spent on pages
- Referring website address
- Date and time of your visit
This information is collected through cookies and similar tracking technologies to help us understand how visitors use our Site and to improve user experience.
Information You Provide
We may collect information that you voluntarily provide when you:
- Contact us through our contact form
- Subscribe to our newsletter (if available)
- Submit feedback or suggestions
This may include your name and email address. We do not require you to create an account to use our educational tools.
How We Use Your Information
We use the information we collect to:
- Provide, operate, and maintain our educational services
- Improve, personalize, and expand our Site's features
- Understand and analyze how you use our Site
- Develop new features, products, and services
- Communicate with you, including responding to inquiries
- Detect and prevent technical issues and abuse
- Display relevant advertisements through Google AdSense
Cookies and Tracking Technologies
We use cookies and similar tracking technologies to track activity on our Site and store certain information.
Types of Cookies We Use
- Essential Cookies: Required for the Site to function properly, such as remembering your theme preference (light/dark mode).
- Analytics Cookies: Help us understand how visitors interact with our Site by collecting and reporting information anonymously.
- Advertising Cookies: Used by Google AdSense to display personalized advertisements based on your browsing history.
Managing Cookies
You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent. Most browsers allow you to view, delete, or block cookies. However, if you do not accept cookies, you may not be able to use some portions of our Site.
Third-Party Services
Google AdSense
We use Google AdSense to display advertisements on our Site. Google AdSense uses cookies to serve ads based on your prior visits to our Site or other websites. You can opt out of personalized advertising by visiting Google's Ads Settings.
Scientific Data APIs
Our Site connects to external scientific databases (PubChem, ChEMBL, Materials Project) to retrieve chemical and material data. These services may log API requests but do not receive any personal information from our users.
OpenAI
We use OpenAI's API to power our material search functionality. Search queries are processed to identify relevant chemical compounds. OpenAI's use of this data is governed by their privacy policy.
Data Security
We implement appropriate technical and organizational security measures to protect your personal information, including:
- Secure HTTPS encryption for all data transmission
- Regular security assessments and updates
- Limited access to personal data on a need-to-know basis
- Secure data storage practices
However, no method of transmission over the Internet or electronic storage is 100% secure, and we cannot guarantee absolute security.
Your Privacy Rights
Depending on your location, you may have certain rights regarding your personal information:
- Access: Request a copy of the personal data we hold about you
- Correction: Request correction of inaccurate personal data
- Deletion: Request deletion of your personal data
- Opt-out: Opt out of personalized advertising
Children's Privacy
Our Site is designed for educational purposes and may be used by students of all ages. We do not knowingly collect personal information from children under 13 without parental consent.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. You are advised to review this Privacy Policy periodically for any changes.
Contact Us
If you have questions about this Privacy Policy or our data practices, please contact us.
Contact Us