This is an independent personal website. All opinions, analyses, viewpoints, and code snippets shared on this website represent the author's own personal experiences and do not represent, portray, or speak for any organization, company, institution, or employer.
1. Contact Form Data & Handling
When you submit a message or technical system query via the Contact Form (on the `/lien-he` page), the information you voluntarily provide (Full Name, Email, Topic, Message context) is securely encrypted via HTTPS and routed directly to the author's personal email inbox using EmailJS API libraries.
- No Database Storage: The nguyenchau.dev website operates as a static site and does not maintain any database server to store your contact information.
- Purpose of Use: Your information is solely used to communicate, discuss the technical challenges you submit, and network. I absolutely do not sell, share, or pass your contact details to third parties for commercial purposes.
2. Privacy of the Virtual Chatbot Assistant
The virtual Chatbot assistant integrated on the website is programmed to help navigate information and operates entirely client-side on your browser.
- Local Processing: All chat history, message content, and keyword matching are processed on your own device and stored only in your browser's localStorage, so the conversation survives page navigation. It clears itself after 24 hours; you can also wipe it immediately with the
/clearcommand in the chat box. - Sent Only If You Choose To Share Contact Details: Your conversation is not transmitted anywhere. The single exception: if you enter contact details (name, email, or phone number), that information along with the options you selected is forwarded to my personal inbox via EmailJS — the same mechanism as the Contact Form in Section 1. No server or database stores the conversation.
3. Client-Side Operations of Free Tools
Free tools provided in the R&D playground (such as batch image compression, software cost estimator, or AI search readiness checker) comply with local client-side processing guidelines:
- Images dragged into the optimizer are compressed directly in your browser using HTML5 Canvas and JavaScript. No files are uploaded to any server.
- When you run a scan, the URL you enter is passed through an endpoint on this site's own server, which calls the Google PageSpeed Insights API (the API key stays server-side and is never exposed to the browser). That endpoint keeps no logs and stores the URL in no database.
4. Cookies & Access Measurement
This website uses Google Analytics to gather anonymous statistics (such as page views, popular pages, average duration) for performance tracking and user experience improvements. Your IP address is automatically anonymized (IP Anonymization) before storage, making it impossible to identify you from this analytics data.
5. Data Amendment & Deletion Requests
Since this website does not store data on server databases, your contact information only exists in the form of emails inside the author's personal inbox. At any time, you have the right to request deletion of your entire email exchange history by writing directly to: nguyenchaudn1991@gmail.com.