It's amusing that the web crowd redefines standard graphics terms. A "wireframe" in graphics is a 3D model where only the edges are shown. This use of "wireframe" means something else entirely. In publishing, that's usually called a "layout".<p>In graphics, "rendering" refers to the final steps which generate the actual pixel values to be displayed. The web crowd uses "rendering" to mean creating the DOM to be displayed, which is still a long way from the pixels. Graphics people would call that creating the scene graph. This appears to be a concept created by Google.[1] For scraping purposes, Google runs most pages in a headless browser to build the final DOM. Then they scrape that. Thus, the Javascript gets executed before scraping. Google refers to that as "rendering", even though they don't take the last steps to generate a pixel image.<p>[1] <a href="https://webmasters.googleblog.com/2014/05/rendering-pages-with-fetch-as-google.html" rel="nofollow">https://webmasters.googleblog.com/2014/05/rendering-pages-wi...</a>