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nofollow & dofollow

Discussion in 'Search Engine Optimization' started by copcop1973, Jul 8, 2009.

  1. #1
    Hello if any person best answer please reply me and any one know what is the different between nofollow & dofollow ?
    SEMrush
     
    copcop1973, Jul 8, 2009 IP
    SEMrush
  2. jamesjame

    jamesjame Peon

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    #2
    Nofollow means site will not be Indexed by Search Engines. And Dofollow means the site must be Indexed by search engines.
     
    jamesjame, Jul 8, 2009 IP
  3. DIA_8497

    DIA_8497 Well-Known Member

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    #3
    Nofollow will ask search engine not to follow that page and dofollow allows search engine to follow those pages. You can put that in robot.txt with mentioning pages to be followed and not to be followed.
     
    DIA_8497, Jul 8, 2009 IP
  4. Dirky47

    Dirky47 Active Member

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    #4
    They have a big difference mate. Search Engines credits more dofollow links than nofollow.
     
    Dirky47, Jul 8, 2009 IP
  5. drcsystems

    drcsystems Peon

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    #5
    IMO nofollow means search engine index that link but not following that and not passes link juice also.

    dofollow is normal link which consider by all search engines.
     
    drcsystems, Jul 8, 2009 IP
  6. digital_point001

    digital_point001 Banned

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    #6
    Thank you.
    Now i also got idia about nofllow and doflow
    Thank to every one
     
    digital_point001, Jul 8, 2009 IP
  7. qazu

    qazu Well-Known Member

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    #7
    NoFollow = Don't Follow this link
    DoFollow = Follow this link..
     
    qazu, Jul 8, 2009 IP
  8. angeela

    angeela Peon

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    #8
    Agreed with Qazu
    NoFollow = Don't Follow this link and Don't pass link juice
    DoFollow = Follow this link and pass link juice
     
    angeela, Jul 8, 2009 IP
  9. Canonical

    Canonical Well-Known Member

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    #9
    Hmmm not exactly... Nofollow will NEVER completely prevent a page/site from being indexed. All it takes is one followed link from another site (or somewhere else on your site) to that same page to get it indexed.

    If you want to prevent a page from being indexed you have typically 3 options:

    1) Password protect the page (i.e. put it behind a login and/or password prompt of some sort),
    2) add <meta name="robots" content="noindex"> to the <head> of the page, or
    3) add a Disallow: URLofPageYouDontWantIndexed to your robots.txt

    Nofollow means slightly different things to different engines. And there are multiple implementations of nofollow/follow. follow/nofollow can apply at the individual link level (which is what MOST talk about when they are talking about follow/nofollow) or at the page level.

    Link Level follow/nofollow:

    A typical hyperlink appears in HTML as:

    or if it's an image link then

    Nofollow at the link leve is implemented using an additional attribute on the <a> element call rel="nofollow". <a> elements are by default followed links... so:

    is a followed link. To make it nofollow simply add the rel="nofollow" attribute like:

    Another form of nofollow that you will frequently see used for blog comment links is:

    From Google's perspective if Page A links to Page B with a rel="nofollow" attribute like:

    then this tells Google a few things:

    1) do not pass page rank from Page A to Page B,
    2) do not count this as a backlink to Page B (i.e. don't give them credit for the link or link text),
    3) do not discover Page B because of this link (i.e. Do not index the page because of this one link. It does NOT prevent the page from being indexed however... only from getting indexed because of that one link. If another page links to Page B WITHOUT a rel="nofollow" attribute then it can STILL be indexed.), and
    4) you are not willing to vouch for the site where Page B resides (i.e. Don't penalize the site where Page A resides if the site where Page B resides is doing shady, blackhat stuff and is found to be violating Google's webmaster guidelines.)

    #4 above is ESPECIALLY helpful when linking to other sites, for example, in blog comments or forum posts. It keeps the owner of the blog or forum from being penalized because some spammer dropped a link on their site pointing to a bad neighborhood site. This is why MOST blogs nofollow all blog comment links.

    A followed link on the otherhand tells Google:

    1) allow page rank to flow from Page A to Page B,
    2) the link from Page A to Page B can be counted as a backlink to Page B so give them credit for the link and link text,
    3) Page B can be discovered and indexed because of this link on Page A, and
    4) most importantly, you vouch for the site where Page B resides and trust that the site it's on is a good neighborhood.

    Page Level follow/nofollow:

    Again, all outbound links on a page are by default followed links. You can explicitly tell the search engines you want them all followed using:

    if you'd like but it's not necessary.

    You can, however, tell the search engines that you want ALL outbound links on the page treated as nofollow links without having to add a rel="nofollow" attribute to every <a> element on the page.

    To nofollow every outbound link on the page, use a <meta> element in the <head> of the page. The syntax is:

    This tells Google and the other engines that every outbound link on that page should be treated as if they each had a rel="nofollow" attribute on the <a> element for the link.

    NOTE: By doing this you have created a black hole for page rank. PR flows into the page but none comes out to other page. It's a blackhole... sink... dead end... for page rank/link juice.


    PS: With the recent announcement from Matt Cutts about how nofollow affects the flow of Page Rank, it makes no sense to ever NOFOLLOW internal links on your site. It can no longer be used for PR sculpting. It's only useful from a Google perspective on outbound links to pages on external sites that you don't trust.

    This is a great explanation about how nofollow used to affect the flow of page rank and how it's different from the way it now affects the flow of page rank. Pay special attention to the paragraph just before the first Q&A where he says:

     
    Canonical, Jul 8, 2009 IP
  10. meenka

    meenka Peon

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    #10
    the difference between these two phrases is
    NoFollow :- Google will not indexed that particular page....and these pages are not beneficial to us.
    DoFollow:- Google indexed that particular page.
     
    meenka, Jul 8, 2009 IP
  11. Atulya

    Atulya Guest

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    #11
    No Follow:

    Nofollow is an HTML attribute value used to instruct some search engines that a hyperlink should not influence the link target's ranking in the search engine's index. It is intended to reduce the effectiveness of certain types of search engine spam, thereby improving the quality of search engine results and preventing spamdexing from occurring.

    DoFlollow

    This is given in the HTML page or the Robot.txt of the website, in order to direct the search engines to follow that particular web page.
     
    Atulya, Jul 8, 2009 IP
  12. raviseo

    raviseo Peon

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    #12
    matt has explaind very nicely its as simple as that nofollow passes some value but it is not that much u should worried about
     
    raviseo, Jul 9, 2009 IP
  13. paul100

    paul100 Peon

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    #13
    nofollow is an HTML attribute value used to instruct some search engines that a hyperlink should not influence the link target's ranking in the search engine's index. It is intended to reduce the effectiveness of certain types of search engine spam, thereby improving the quality of search engine results and preventing spamdexing from occurring.

    And dofollow allows the SE to Index it. It passes the link juice.
     
    paul100, Jul 9, 2009 IP
  14. tommseo

    tommseo Peon

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    #14
    Nofollow will not pass the link juice whereas Dofollow will pass link juice
     
    tommseo, Jul 9, 2009 IP
  15. Earnest01

    Earnest01 Peon

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    #15
    I was just going to suggest good old googling, but Canonical's post kind of exhausts the subject :)
     
    Earnest01, Jul 9, 2009 IP
  16. melbel

    melbel Notable Member

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    #16
    Let me add, though, that the search engines do still give a boost for nofollow links, just not as much as dofollow. In my book, any link is good, but dofollow is preferred.
     
    melbel, Jul 9, 2009 IP
  17. vinnu

    vinnu Peon

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    #17
    No follow and Do follow are the attribute of Google, If you have Do follow Links That means Google spider crawl your link, if this is No Follow then Google Spider Will not crawl the link but other search engines treat similar
     
    vinnu, Jul 9, 2009 IP
  18. Samagrawal

    Samagrawal Banned

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    #18
    Basically, nofollow attribute is used to indicate the search engine robots for not to crawl the links with this attribute. There is no need to use dofollow attribute to get crawl the links by search engines.
     
    Samagrawal, Jul 9, 2009 IP