Autor Subiect: nofollow, indexare si page ranking  (Citit de 15518 ori)

bassul

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nofollow, indexare si page ranking
« : Ianuarie 19, 2007, 07:25:26 pm »
Am auzit ca nofollow pentru un link opreste doar scurgerea ranking-ului catre pagina respectiva, dar crawler-ul va vizita totusi situl respectiv.
Cum e?

WBF

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nofollow, indexare si page ranking
« Răspuns #1 : Ianuarie 19, 2007, 08:21:00 pm »
invers.
Da pot sa ma insel.
Pentru un raspuns mai la obiect,poate totusi seopedia at fi ok

xServers.ro

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nofollow, indexare si page ranking
« Răspuns #2 : Ianuarie 19, 2007, 08:57:14 pm »
Daca afla cineva ceva, va rog postati si aici.

Multumesc anticipat.

impex.ro

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nofollow, indexare si page ranking
« Răspuns #3 : Ianuarie 19, 2007, 09:20:18 pm »
NoFollow, clar, nu va urmarii linkul.
Mai nou forumurile sunt astfel facute, astfel impiedicand spammerii sa faca posturi aiurea.

HostArea

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nofollow, indexare si page ranking
« Răspuns #4 : Ianuarie 19, 2007, 09:53:44 pm »
rel="nofollow" blocheaza urmarirea acelui link de catre motoarele de cautare, implicit de catre crawlerul de la Google, care calculeaza PR-ul pt o pagina

http://simonwillison.net/2005/Jan/17/relNoFollow/

Deci, @bassul: "nofollow" opreste scurgerea de PR si crawlerul nu viziteaza pagina din link (Google kicks ass :D)

bassul

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nofollow, indexare si page ranking
« Răspuns #5 : Ianuarie 19, 2007, 10:09:39 pm »
Da, asa e. Daca mai google-uiam putin gaseam si asta:
http://blog.searchenginewatch.com/blog/050118-204728

impex.ro

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nofollow, indexare si page ranking
« Răspuns #6 : Ianuarie 19, 2007, 10:16:22 pm »
Citat
What Nofollow Means

Below I'll cover what Google says it does, if it sees a link with the nofollow attributed associated with it. Yahoo and MSN are likely to react in a similar fashion, though I haven't yet spoken with them to get exact details since news of their support only just emerged.

If Google sees nofollow as part of a link, it will:

   1. NOT follow through to that page.
   2. NOT count the link in calculating PageRank link po*ularity scores.
   3. NOT count the anchor text in determining what terms the page being linked to is relevant for.

That's the situation at the moment. Google is going to evaluate how the attribute works, and it could decide to make other changes down the line, it says.

Now let's look at the impact of each action:

1) Not following the link to the page it points at means that potentially, Google might not index the page at all. As said, the more links that point at a particular page, the more likely it is that Google (and generally the other major search engines) will include that page within its index.

The nofollow attribute DOES NOT mean that someone will prevent a page they do not actually control from being indexed, however. If Google finds even one ordinary link pointing at a page, it may then index that page.

In addition, people can submit their pages directly to Google (and most major search engines). So it's crucial to understand that just because someone might place nofollow in a link pointing at your site, this WILL NOT prevent your page from getting indexed.

2) As for PageRank calculations, it's important to remember that PageRank is a pure po*ularity score (other search engines have similar scoring mechanisms, just not catchy names other than Yahoo's Web Rank). The nofollow attribute means that a link will not be counted as a "vote" in this po*ularity contest. That can have an impact on ranking, in cases where the impact of other factors beyond pure po*ularity come into play.

Huh? Say there are two pages, one with a PR score of 6, the other a PR of 7. Even though the PR7 page is more po*ular from a link counting point of view, it could still get outranked by the PR6 page if other factors such as the words on the page, or the anchor text pointing at the PR6 page, make it more relevant for a particular search.

It's also important to note that nofollow DOES NOT mean you are flagging a link as being bad in some way. Google isn't going to say, "Aha -- nofollow is on this link -- that's a bad link." Or as Matt Cutts, a Google software engineer who helped develop the attribute, said:

"It doesn't mean that it is a bad link, or that you that you hate it, just that this link doesn't belong to me."

Instead, nofollow effectively will cause Google to ignore the link, to pretend it doesn't exist. This also means you shouldn't worry that people will link to you and use nofollow as a way to hurt you -- Google says that won't happen.

3) This leads to anchor text. Generally much more important in ranking well for a particular term is to get the words you want to rank well for put into a link that points at you. With nofollow added to a link, Google won't associate the anchor text in the link with the page the link is pointed at. This, more than anything else, will sour things for link spammers.


Cred ca e clar :-)

HostArea

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nofollow, indexare si page ranking
« Răspuns #7 : Ianuarie 19, 2007, 10:53:28 pm »
Citat din: "bassul"
Da, asa e. Daca mai google-uiam putin gaseam si asta:
http://blog.searchenginewatch.com/blog/050118-204728


Cand am zis "Google kicks ass" nu ziceam ca nu ai googleuit destul. Ziceam ca baietii astia de la Google "e destepti" prin chestia cu "nofollow". Altfel, ar exista spam la greu.

tedallsearch.com

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nofollow, indexare si page ranking
« Răspuns #8 : Martie 15, 2007, 11:40:51 pm »
Din cate stiam metoda rel="nofollow" a fost adoptata de majoritatea motoarelor de cautare, dar acum cateva luni, la o cautare pe yahoo(link:domeniumeu.com) am avut surpriza sa observ ca mi-a indexat un link marcat cu "nofollow", care-l postasem pe un site. Partea si mai frumoasa e ca site-ul resp. are PR9  :D

web designer

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Răspuns: nofollow, indexare si page ranking
« Răspuns #9 : Decembrie 11, 2007, 04:56:57 pm »
Super, da google e mult in fata celorlalte motoare de cautare inclusiv yahoo.  Pe yahoo tot ce trebuie sa faci ca sa iesi in fata e ca obtii tone de linkuri nu prea conteaza de la cine si cum.

unloved

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Răspuns: nofollow, indexare si page ranking
« Răspuns #10 : Ianuarie 23, 2009, 11:04:14 pm »
Din cate stiam metoda rel="nofollow" a fost adoptata de majoritatea motoarelor de cautare, dar acum cateva luni, la o cautare pe yahoo(link:domeniumeu.com) am avut surpriza sa observ ca mi-a indexat un link marcat cu "nofollow", care-l postasem pe un site. Partea si mai frumoasa e ca site-ul resp. are PR9  :D
Si yahoo tine cont de nofollow. Faptul ca l-a indexat nu inseamna ca ti-a si atribuit PR de la pagina respectiva.

unloved

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Răspuns: nofollow, indexare si page ranking
« Răspuns #11 : Ianuarie 30, 2009, 12:26:33 am »
Poate va este de folos informatia asta: http://en.wikipedia.org/wiki/Nofollow#Interpretation_by_the_individual_search_engines

Cred ca e destul de clar acum... ;)