Manual:NoFollow

This page is a translated version of the page Manual:Nofollow and the translation is 78% complete.

Outdated translations are marked like this.

"NoFollow" é um valor que pode ser assinado pelo atributo de HTML Rel na qual irá instruir mecanismos de buscas a não influenciar um alvo de hyperlink nos ranques de indexação desses mecanismos de busca. O configuration setting Manual:$wgNoFollowLinks é usado para controlar qualquer wiki link externo deve ter "NoFollow" ou não.

Benefícios e Custos

Benefícios

O benefício principal citado pelo uso do NoFollow é deter o spam. Esses benefícios são aplicados principalmente nas páginas onde pode ser esquecido e assim não revertido, como páginas de predefinições ou artigos que não possuem visitas ou edições constantes. ^[1] Nofollow mostly deters spammers who are sophisticated enough to know about nofollow but either not sophisticated enough to realize they can still get a return on their investment even with nofollow in place^[2] or aiming for higher returns on investment. "NoFollow" infelizmente não pode deter spammers se a sua motivação for atrair visitantes para as suas páginas, sites ou produtos externos nos quais venham beneficiar os ranques de buscas dos seus sites se o seu wiki for popular. ^[3] Outro caso de benefício citado pelo "NoFollow" são os direcionamentos para sites que possam ser prejudiciais ou artigos elevando sua relevância nos mecanismos de busca. Porem para o leitor não é essencialmente benéfico ou prejudicial dependendo se irá classificar tal informação como útil ou não, já que poderá criar propaganda ou divulgação sem curadoria dos administradores.

Custos

Usando o "NoFollow" irá prevenir a interligação dos links da sua Wiki com outros sites impulsionando seus acessos e ranques nos mecanismos de busca, porem isso será ruim se seus proprietário/administrador deseja impulsionar seu ranqueamento dentros desses mecanismos de buscas. Desligando o "NoFollow" é uma ideia especialmente boa se você está rodando uma Wiki Privada ou uma na qual apenas usuários registrados e/ou com permissões para editar de alguma forma. Turning off nofollow is especially a good idea if you run a private wiki (i.e. one that does not allow editing by anonymous users, and that allows registration by invitation only).^[4] Nesse caso o spam não deve ser uma preocupação pois apenas usuários selecionados e que possuam sua confiança poderão fazer alterações no site. Contudo wikis públicas devem evitar usar o "NoFollow" em prol de encorajar aos visitantes e usuários de fazerem contribuições e adicionar links externos ao seu site.^[5] Outro custo de se usar o "NoFollow" é sua incapacidade de usá-lo seletivamente e é comum de ser agumentado o seguinte: "Você pode imaginar a internet funcionando bem hoje em dia se todos os links forem marcados como não seguir("NoFollow")?"^[6]

Ver também

Referências

↑ Cumbrowski, Carsten (21 January 2007). All Wikipedia Links Are Now NOFOLLOW.This will not eliminate SPAM at Wikipedia, but it will over time certainly reduce it a bit. Especially the spam of invisible pages that have virtually no traffic but at least some PageRank is now virtually a waste of time for any spammer. Spamming of areas with traffic was futile already without the NOFOLLOW attribute in place, since Editors remove the SPAM within hours or even minutes after it happened."
↑ Cates, Andrew (22 November 2006). Nofollow. "Some spammers have western type return on effort criteria. Others do not: they live in China with a tiny income and are happy with an incredibly low success rate. If you get a link in Wikipedia it appears in all the mirror sites and many of these (such as answers.com, encyclopedia.worldvillage.com www.algebra.com ) do not use nofollow. The unsophisticated spammer doesn't know about nofollow. The sophisticated spammer knows he gets a return. You may put off a few in the middle and ones who won't accept a miserly pay-back. Also links on Wikipedia generate direct traffic (even us checking if they are genuine). People would spam even for that (some SEO companies even do contracts on a pay per extra visitor basis)."
↑ Disaffected Wikipedian (16 February 2008). Post details: MediaWiki software and rel=nofollow.
↑ MediaWiki notes, noah.org.
↑ Hammock, Rex (22 January 2007). All Wikipedia links are now 'nofollow'. "I’m not so sure this decision by Wikipedia regarding the NOFOLLOW attribute is very beneficial. Why not? It is a feature of most blogging platforms’ comments tool (links appearing in comments are not “indexed” by search engines, in other words) but that does not seem to slow down the attempts by link spammers to clog comments. Also, from my experience of maintaining a rather large and robust wiki, I think one of the reasons individuals participate in helping to create such resources is to pick up some link-love. In other words, I won’t be instituting the nofollow attribute on any mediawiki sites with which I am associated."
↑ Mayfield, Ross (11 January 2008). No Free Links and Why nofollow Doesn't Work for Wikis.

Links externos

No to Rel="Nofollow", NoNofollow.net
Evolving “nofollow” – new ways to identify the nature of links, Google Webmaster (2019)

[1] Cumbrowski, Carsten (21 January 2007). All Wikipedia Links Are Now NOFOLLOW.This will not eliminate SPAM at Wikipedia, but it will over time certainly reduce it a bit. Especially the spam of invisible pages that have virtually no traffic but at least some PageRank is now virtually a waste of time for any spammer. Spamming of areas with traffic was futile already without the NOFOLLOW attribute in place, since Editors remove the SPAM within hours or even minutes after it happened."

[2] Cates, Andrew (22 November 2006). Nofollow. "Some spammers have western type return on effort criteria. Others do not: they live in China with a tiny income and are happy with an incredibly low success rate. If you get a link in Wikipedia it appears in all the mirror sites and many of these (such as answers.com, encyclopedia.worldvillage.com www.algebra.com ) do not use nofollow. The unsophisticated spammer doesn't know about nofollow. The sophisticated spammer knows he gets a return. You may put off a few in the middle and ones who won't accept a miserly pay-back. Also links on Wikipedia generate direct traffic (even us checking if they are genuine). People would spam even for that (some SEO companies even do contracts on a pay per extra visitor basis)."

[3] Disaffected Wikipedian (16 February 2008). Post details: MediaWiki software and rel=nofollow.

[4] MediaWiki notes, noah.org.

[5] Hammock, Rex (22 January 2007). All Wikipedia links are now 'nofollow'. "I’m not so sure this decision by Wikipedia regarding the NOFOLLOW attribute is very beneficial. Why not? It is a feature of most blogging platforms’ comments tool (links appearing in comments are not “indexed” by search engines, in other words) but that does not seem to slow down the attempts by link spammers to clog comments. Also, from my experience of maintaining a rather large and robust wiki, I think one of the reasons individuals participate in helping to create such resources is to pick up some link-love. In other words, I won’t be instituting the nofollow attribute on any mediawiki sites with which I am associated."

[6] Mayfield, Ross (11 January 2008). No Free Links and Why nofollow Doesn't Work for Wikis.

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