# Add PageMap to the Sitemap Probably the best way to add metadata to existing pages is to Add PageMap to the Sitemap. This method does not require touching any existing pages, as all the metadata can be included in the new sitemap itself.
You can make your metadata available for Google Custom Search engine to crawl in the following ways in three ways. You can:
* Add PageMap data directly to your HTML page 
* Add PageMap data to a Sitemap
* Use rich snippets markup or meta tags to add structured data directly to your HTML.