Semantic markup format requirements and recommendations

Semantic markup accurately describes the content of the page. It also reports additional service data, such as the structure of the site. It can also accurately describe not only the contact details of the organization, but also the opening hours.

The top snippet shows a beautiful hierarchy of sections at the link location. This is done using BreadcrumbList semantic markup. The bottom one shows just a link.

Here are some recommendations to follow:

All pages, except the main one, should have BreadcrumbList markup. It helps search engines to index the site.
Enter information about your company using the Organization schema or its subsidiary schemas on each page.
There are special semantic markup formats for products, recipes, movies and other types of information materials. For such pages, search engines display information in special graphic blocks. Read more about them you can read in the documentation Yandex, and Google.
If the scheme assumes a large amount of text, then use the Microdata format. If not, use JSON-D.
Refrain from using the RDF semantic markup format. It is supported only by Google. Microdata and JSON-D formats are supported by both Yandex and Google.
It is better to replace outdated microformats vCard and hRecipe with semantic markup Organization and Recipe.

Lessons

Semantic markup format requirements and recommendations

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