File name is important in SEO

Enter a meaningful name for each Web page.
   Good: keyword.html
    Bad: seite5.html

    Use only lowercase letters and numbers. Stay away from capital letters, special characters, spaces and special characters.
    Contains a file name next to a major search another word, separate the two with a hyphen, as search engines analyze whole words only and no stems. The underscore is the way not seen as word separators by Google!
   Good: milka-schokolade.html
    Bad: milkaschokolade.html
    Bad: milka_schokolade.html

    Grasp thematically related pages together in one directory. Also enter this folder a descriptive name, eg

    http://www.domain.com/hamburg/hotels.html

    Various languages ​​can be structured directories

      Do not overdo it, you think of your visitors!

    Overkill: http://www.domain.com/hamburg-hotel-hotel/hotel-in-hamburg.html

    Take into account that some users shorten the URL by hand. 

Example:

    The user is located on the side and cut to the URL
    http://www.domain.com/news/2009/xyz.html
    http://www.domain.com/news/2009/,
    because he believed the index for 2009.

    It could now be that an error page is displayed because of this contents are either not willing or is under a different URL. It should be ensured that in speaking directories include corresponding content is displayed.
    Make inconsiderateness for dynamic web pages that each sub site accessible only by just a URL. It must be avoided that by an inconsistent URL design identical pages under different URLs in the search engine index reach (duplicate content).
    This happens for example like with print versions or additional detached parameter. If necessary, the indexing of such pages on the meta-information "noindex" and / or "nofollow" can be prevented.

    By the link attribute rel = "canonical" one can tell Google recently the canonical main URL each sub page. Particulars under your Google Webmaster Central "Surely canonical
    Independent, self-contained sub-sections of a site, you can outsource to a sub domain. It is believed that words are ranked in a sub domain slightly higher than searches in a sub directory. A sub domain is also easier to write in web directories as a sub directory, which is accepted by only a few web directories.

    It makes sense for example:
    http://forum.domain.com
    http://blog.domain.org
    http://shop.domain.net

    Very large websites often have the problem that indexing by Google is incomplete. A breakdown into sub-domains may increase the number of sites included in the index because of Google sub domains are treated as separate domains tend.
    Do not use directories for visitors or search engines have no meaning.

    Bad:  http://www.domain.com/cms/ ...
    Bad:  http://www.domain.com/html/ ...
    Bad:  http://www.domain.com/inhalt/ ...
    Bad:  http://www.domain.com/web02/ ...
    Correct: http://www.domain.com/ ...

    If you rename files or directories that you should not forget to set an appropriate routing so that your visitors will not click into the void. Because the old addresses are still in the cache of search engines and can appear for months in search results. Furthermore, some visitors might have set in your browser bookmarks on sub pages.