Insert a sample of ten URLs as a test while in the popup input box to make sure that the JSON-LD output is correct across all pages. Rich snippets or rich benefits are results on search engine effects page (SERP) which might be visually enriched with graphical features for instance https://ilovebookmarking.com/story19155178/facts-about-automatyczne-google-rich-snippets-json-ld-opengraph-seo-revealed