SharePoint Search: Web Sites content source. Lack page content in crawled property.

Hi,

I have created content source: Web Sites. I have done full crawl so I have crawled properties, which mapped for managed properties.

The problem is the lack of information on crawled properties. I see only basic information about Title, Description and Path. Sometimes in HitHighlightedSummary message appears about what I'm looking for in query text (I use SharePoint Search Query Tool to search)

Question is: Can I access the content of the page through the crawled/managed properties?

I found an article in which properties are described, but it does not work as described by the author of the article:

https://blogs.technet.microsoft.com/anneste/2008/11/25/mystery-solved-crawled-properties-in-sharepoint-part-7/