Inspecting 3D on HTML canvas from Web browser

I am trying to determine what technology is used for the 3D model loaded on this page. By using the Chrome Dev tools I am able to see the textures loaded on the Network tab. However, on the HMTL you only see the canvas element, which does not tell much. Setting breakpoints does not seem to work since the element does not change from an HTML perspective. How can I determine which script/code is working on the canvas?

As an extra question, does anybody know if WebGL is being used? Or a hint of which technologies and data formats (X3D...) are likely used for this.