Lynx is a text-based web browser, first released in 1992! In my mind there is no better window to what search engines see of your websites than running them in Lynx. Now the web is full of images and video and stunning in-page interactivity, but it’s really a text delivery system.
On the right is what a web crawler for a search engine would “see!” And it’s not bad at all! No errors, no accessibility issues, a minimum of duplication. At core, SEO is about whether your text is well structured and available to the web crawlers. And that screen shows the goods. Kudos again, LinkedIn.