Frequently Asked Questions
Common questions about dtducas.com, the work behind it, and your data.
It is the personal portfolio and brand site of Tran Quang Duong — a full-stack and DevOps engineer. It showcases projects, writing, and how the site itself is built.
Email contact@dtducas.com, use the contact page, or connect on the social links in the footer. I read everything and reply when I can.
No. Browsing and reading need no account. An optional account exists to demonstrate the encrypted authentication flow and to manage your subscription.
Yes. Sign-up and sign-in are protected end to end with a hybrid encrypted handshake (ECDH → HKDF → AES-256-GCM), a fresh key per request, Argon2id password hashing, and optional multi-factor authentication.
Only what a feature needs — a subscription email, account data, and consent-gated analytics. Non-essential cookies load only after you accept. See the Privacy and Cookie policies for details.
Use the unsubscribe link in any email, or email contact@dtducas.com to request deletion of your account or data.
The site is my own work. Feel free to take inspiration and link to it, but please ask before copying code, designs, or content.