Official Google answer: Does Googlebot use inference when spidering - having crawled site.com/article/page1.htm and /page2.htm, can it guess at the existence of a /page3.htm and crawl it?

Question:

Does Googlebot use inference when spidering - having crawled site.com/article/page1.htm and /page2.htm, can it guess at the existence of a /page3.htm and crawl it? Or does it stick entirely to what it finds via the link graph and/or Sitemaps/feeds?

Google's Matt Cutts answers:

Summary of the answer:

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Question

Views

Regarding "nofollow" on internal links: Does it hurt?

459

If Google crawls 1,000 pages/day, Googlebot crawling many dupe content pages may slow down indexing of a large site. In that scenario, do you recommend blocking dupes using robots.txt or is using Meta Robots noindex,nofollow a better alternative?

350

How would Google consider (and rank) a site that uses meta data and URLs in a language (Italian) and has the H1 of the pages in another (English) considered more appealing for users?

324

Tips on requesting reconsideration

494

Links from relevant and important sites have always been a great way to get traffic and acceptance for a website. How do you rate links from new platforms like Twitter, Facebook to a website?

549