Semantic markup – SEO WIKI
Semantic markup is content that has well-formatted HTML formatting tags.
The correct display of the text and the relevance of the page depend on it.
For semantic markup, two types of layout are used: block and tabular.
Tabular layout is considered obsolete, but due to ease of use is common. Search engines are very difficult to perceive the code, because the text is in the cells.
With block layout, the text is located in blocks to which css styles are assigned. This method is considered perfect.
The main advantages of semantic markup:
simplified text editing,
Reducing the weight of pages on the site
Improved page indexing.