Is Google able to crawl protocols other than http and https?

Is Google able to crawl more protocols than http and https? Daniël Voogsgerd, Veenendaal, Netherlands Have a question? Ask it in our Webmaster Help Forum: Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: More videos: Webmaster Central Blog: Webmaster Central: