These are technical metrics of the site's page structure and performance. They indicate how «heavy» and comprehensible the site's code is for browsers.What do these numbers mean and why are they useful? This is an «X-ray» of the page's software code. They show not how the site looks to the eye, but how it is constructed inside.If there are too many details, even a powerful computer or smartphone will start to «lag» while rendering the page.Hyperlinks show how many doors lead from this page to other places. For a store, this is important: the client must easily navigate to categories and products. But if there are too many «doors», the search bot can get confused, and the page's «authority» will be diluted.Images are the «heaviest» element. The more there are, the higher the optimization requirements. If there are many of them and the server is weak, the site will take painfully long to open, and people will leave for competitors.Scripts are responsible for chats, carts, animation, and analytics. But every script is an additional command for the phone's processor. An excess of scripts makes the site «clunky».HTML Tags Distribution — This is the quality of the layout. If standard «boxes» (div) predominate, the site is built simply. If «semantic» tags are used, it's like titled chapters in a book. It is much easier for search engines to understand where the important text is on the page, and where the menu or footer is.Headings H1-H6: This is the logical structure. It is the table of contents of the page. Google uses them to understand the hierarchy of information: what is the most important here, and what is secondary. Without headings, the text turns into complete «mush» for the search engine.What is the main benefit of this information? It allows you to find a balance. The site must be complex enough to be beautiful and functional, but simple and logical enough to load quickly and rank high in search.