A web page. Every web page is implicitly assumed to be declared to be of type WebPage, so the various properties about that webpage, such as breadcrumb may be used. We recommend explicit declaration if these properties are specified, but if they are found outside of an itemscope, they will be assumed to be about the page A set of links that can help a user understand and navigate a website hierarchy. Indicates the collection or gallery to which the item belongs. Date on which the content on this web page was last reviewed for accuracy and/or completeness. Indicates if this web page element is the main subject of the page. Indicates the main image on the page A link related to this web page, for example to other related web pages. People or organizations that have reviewed the content on this web page for accuracy and/or completeness. One of the more significant URLs on the page. Typically, these are the non-navigation links that are clicked on the most. The most significant URLs on the page. Typically, these are the non-navigation links that are clicked on the most (legacy spelling; see singular form, significantLink). One of the domain specialities to which this web page's content applies.