Impressive Landing Page for UXToolset featuring an in-page demo that switches the current site into wireframe mode, brilliantly showcasing the wireframing product you are about to purchase. The product demos throughout the page are also very clear and lovely tough with the scrolling background components (included in the package) while you are reading about the component categories.
This website has unfortunately been redesigned or gone offline, so I have removed the direct link to it. The screenshot below hopefully preserved enough of the design but if you are really keen to inspect further, try this Archive.org link. FYI: the site was first featured on 24 November 2020.