Privacy
What we collect: very little.
OlympiadHQ is run as a public-good archive of mathematical problems. Reading the archive requires no account, no email, no payment. The points below describe everything the site does with data.
Reading
You can browse, read, and print every problem on the site without identifying yourself. There is no login wall in front of any reader-facing content.
Optional accounts
Accounts exist for one reason: so that bookmarks, notes, and progress markers follow you across devices. Without an account, those live only in the local storage of the browser you are reading from. With an account, the same data syncs to whatever device you sign in on next. We store your email address, a salted hash of your password (we never see the plain text), and the saved items themselves. That is all. Closing your account erases the lot. Email vamshi.jandhyala@gmail.com and it will be done within seven days.
Cookies
A single session cookie (ohq_session) is set only after you log in, and only to keep you logged in. No tracking cookies, no advertising cookies, no third-party cookies.
Analytics
The site uses Plausible Analytics, a cookieless, GDPR-compliant service that records page-view counts in aggregate. No individual visitor is identified, no personal data is shared, and no profile is built. The data tells us only how many people visited which pages.
Server logs
Standard web-server logs hold IP addresses and request paths for a few days for security and abuse prevention. They are never used for advertising or shared with third parties.
Your rights
Under the UK GDPR you can ask for a copy of any data held about you, ask for it to be corrected, or ask for it to be erased. Email the address above. You may also complain to the Information Commissioner’s Office.