The tag that transmits information to search engine bots about the language of a given web page and the targeted region. A website may wish to offer content in multiple languages or appeal to users located in different geographic areas. Hreflang tags must be used in such cases. Thanks to these tags, websites are presented the opportunity to be ranked in user queries made in a specific language or in a specific region. First the language, and then the country code must be specified while creating hreflang tags. Also, for example, by using markups such as "de-ES", it is possible to indicate that German content is intended to target users located in Spain.