In some cases, search results pages are useful, but it's a good idea to know in advance that a page only includes search results. Google started to show a label like "Matches 1-50 of 100", "Results 1-24 of 56" or "33 results" next to the snippets. For example, an Amazon page that includes a list of Star Wars-related products shows this label.
Another example is a store that sells games:
