7 of the top ten results were from 2 sites

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  David Ogletree: What I said had nothing to do with rank. It was about how many results are allowed from one domain on any given SERP. If I type in a term that matches a domain name sometimes every single result on the first page is from one domain.
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  Webado C Webada: The rank is what determines the order of the returned search results. I don`t mean PR, that`s gone. But Google`s own internal rank that it continually computes for all indexed urls on the web.
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  Webado C Webada: But it`s not actually true that for a search on a domain name (as search string) you get only pages from that domain. In fact you might get none if the domain name does not appear as text anywhere on its pages.
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  Webado C Webada: Keywords in urls have no value when it comes to indexing and ranking. So the keywords being or not in the urls is irrelevant. Indexing is based on page content. If those pages contain the words you searched for (in any order and anywhere on the page unless you put the search term in quotes), they are fair game to be returned.
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  Webado C Webada: 2,3 ... it depends what better results may exist. Since your search was not particularly targeted you get what you get.
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  David Ogletree: I know that. There was a time when Google did not allow more than 2 results from any domain on any given SERP.
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  David Ogletree: Please don`t give advise if you don`t know what your talking about.
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  Dan Thies: Amit Singhal went to Uber. The lunatics have taken over the asylum.
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  David Ogletree: How many times do I have to say that my question had nothing to do with rank
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  David Ogletree: I know your comments are clueless and not helpful
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  Webado C Webada: Really? Tell me you know Google`s secret ranking algorithm.
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  Webado C Webada: Well David Ogletree, if you don`t like the result send feedback. But there are many situaitons where one or two sites are overwhelmingly more relevant than any others. RANK is what determines what gets returned and in what order.
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  Webado C Webada: If I`m clueless and you are cluefull, I`m out of here. Sayonara.
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  David Ogletree: Once the ranking algorithm is done Google then runs another algorithm that filters out how many pages and which pages from each domain it allows to be shown on any given SERP. It used to stop at 2 per domain. It also groups domains so that you never see 2 or more results in a SERP that are not next to each other bypassing the first algorithm. The first page listed when multiple results from same domain is the page that earned the place and n the first page and several other results can piggyback on a stronger page.
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  Tom Gooden: Not that it has anything to do with David`s post, but to address Webado`s first comment, Keyword in the URL is indeed a ranking factor. It may not be as powerful as some others, but a factor none the less.
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  Tom Gooden: https://moz.com/learn/seo/url
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  Tom Gooden: http://backlinko.com/google-ranking-factors
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  Webado C Webada: Wow, so many misconceptions, misunderstandings and obsolete information!
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  Tom Gooden: I know right, you should really fact check your responses ;)
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  Webado C Webada: I`m referring to YOURS.
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  Tom Gooden: If you think keyword in the URL is not a ranking factor, even a small one, then you`re either lying to yourself or completely misinformed. Sorry :
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  Tom Gooden: Considering it was even confirmed by Google to be one.
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  Webado C Webada: It`s not anything at all. It becomes bolded after the search just for giggles.
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  Webado C Webada: It was not confirmed by Google.
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  Tom Gooden: Oh really? https://www.youtube.com/watch?v=4FkSZIW6d48#t=1070