What is the function of html tag semantics and rendering efficiency? Seo crawler? Want to know the principle of a depth! Thank
It’s an interesting question.
In order to present a good content structure and code structure without CSS. In order to look good when running naked. Because each browser is not standard for
domFault tolerance is different.
User experience: for example
title、altIt is used to explain nouns or picture information and the use of label labels.
It is conducive to SEO: establish good communication with search engines and help crawlers to capture more effective information: crawlers rely on tags to determine the context and weight of each keyword;
It is convenient for other devices (such as screen readers, blind readers and mobile devices) to render web pages in a meaningful way. Teams that follow World Wide Web Consortium follow this standard, which can reduce differentiation.
This is really difficult to say, but we can guess, to make a metaphor, to give you a book with a catalog is easy to look up or a book without a catalog? ? Obviously, after Semantic
domMore standardized, so rendering will be more efficient, for example, there will be a lot of processing fault tolerance left.
Recommended links:Innovation of HTML 5-Semantic Label