HSTS Studio is a set of lookup tools. When you check a domain, the query goes to public DNS and public endpoints to fetch a public answer. We do not require an account, we do not set advertising cookies, and we do not store the domains or values you look up.
What is processed
The domain or URL you enter is sent to our resolver network or the relevant public endpoint solely to perform the check you asked for, and the result is shown back to you. Standard, short-lived server logs may record request metadata for security and abuse prevention; they are not used to build a profile of you.
No tracking
This site runs no advertising or cross-site tracking scripts. Your theme and Easy/Tech preferences are stored locally in your browser and never leave your device.
Contact
Privacy questions can be sent to the address on our About page.