Any static website: HTML, CSS, JavaScript, images, fonts and PDFs. If it runs in a browser without a server, it runs here. That covers portfolios, landing pages, documentation, event pages, resumes and everything an AI builder exports.
If your site needs WordPress, PHP or a login system with its own database, it is not static, and OxyPages is not the place for it. Forms are the usual worry, and they are handled for you: a normal HTML form on a static page still collects submissions, with no backend of your own.