Com impacten els rànquings del motor de cerca dels comentaris

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El comentari sobre altres blocs ajuda al rànquing del meu motor de cerca? L’algorisme de classificació de Google pesa molt en els enllaços rellevants al vostre lloc. Com que els enllaços de tornada al vostre lloc us ajuden, no tindria sentit que comentar i deixar els enllaços a tot arreu en beneficiés el lloc? No exactament.

En aquest vídeo recent, Matt Cutts (Search Quality for Google) analitza els riscos potencials de permetre als usuaris publicar comentaris amb el correu brossa al vostre bloc. Teniu control sobre el contingut del vostre lloc web i, si Google us detecta enllaços a llocs web brossa, probablement també consideraran que el vostre lloc web és brossa.

També toca la raó per la qual Google solen fer servir no penalitza el vostre lloc web per enllaços de contingut brossa. Si Google penalitzés els llocs web per qualsevol tipus d’enllaços vinculats, els competidors crearien els pitjors enllaços possibles entre si intentant eliminar la competència dels resultats de la cerca.

Encara hi ha molts blocs que no afegeixen el fitxer rel = "nofollow" atribut als enllaços de comentari. Per què un propietari de bloc vol fer-ho?

A bloc dofollow l'enllaç de comentaris és una recompensa senzilla per als usuaris que afegeixen comentaris i comentaris valuosos. El propietari del bloc obté un valuós comentari generat per l'usuari i el visitant que deixa un bon comentari obté un enllaç dofollow. La majoria de blocs que permeten enllaços de comentaris dofollow moderen estrictament aquests comentaris i enllaços, de manera que és probable que no us publiqueu un enllaç tret que el vostre comentari contribueixi i aporti valor a la publicació del bloc.

Una altra de les raons per les quals un bloc pot permetre comentaris dofollow és si el blog existeix des de fa molt de temps i el propietari no actualitza la plataforma sovint. Ho creieu o no, hi ha milers de blocs que no s’han actualitzat des que es va inventar l’atribut rel = 'nofollow'. Molts dels blocs encara s’utilitzen i s’afegeixen publicacions noves regularment. Molts d'aquests blocs es moderen de prop o estan plens de correu brossa de comentaris.

Si proveu de crear el vostre perfil de backlink, ho faria Mantingueu-vos allunyat de les publicacions del bloc amb altres comentaris brossa. És probable que no se us penalitzi si publiqueu enllaços al costat d’enllaços brossa, però Google sol identificar aquestes pàgines amb spam i filtrar-les del seu gràfic d’enllaços.

En la majoria dels casos, l’esforç de crear el vostre perfil d’enllaços posteriors mitjançant la publicació d’enllaços de comentaris de bloc no val la pena, ja que aquests llocs normalment contenen tants enllaços de comentaris que el valor de PageRank es divideix massa per tenir un valor considerable. Bloc els enllaços de comentaris amb l'atribut rel = 'nofollow' no passaran cap valor al vostre lloc web.

9 Comentaris

  1. 1

    Jeremy,

    This is outstanding information. One note I would add, though, is that providing great comments on another blogger’s blog can often get you some attention. When I first began blogging, I commented often on blogs and provided great content and discussion for them. Many took notice and began linking to my blog. I know that’s not a 1:1 trade on backlinks, but it can be fruitful!

    Also – I thought Google had adjusted the way that they treat nofollow and dofollow because of what SEO guys were doing with page sculpting… is that not the case?

    Great post! Thanks!

  2. 2

    @Doug – Last summer at SMX Advanced Matt Cutts suggested that we should think of PageRank as “evaporating” when the nofollow attribute is added. If we take him as his word this would mean that you can’t craft or sculpt your site’s PageRank using the nofollow attribute.

    For simplicity sake let’s say that your blog post had a PageRank value of 10. You have the ability to pass this value to other web pages via links. If you link to 9 other pages within your website and 1 external website, you are losing 10% of the PageRank value that you could have kept flowing through your website. When the nofollow attribute was adopted by Google, savvy SEOs attempted to add this attribute to the external link in this scenario to keep all of their PageRank. The thought was that this would strengthen other internal pages of their website. If we believe Matt Cutts about PageRank evaporating with regards to nofollow, then the tactic of page PageRank sculpting with this attribute has no value.

  3. 3

    It is important to mention that there is still value in linking to other valuable resources in your blog posts. Enrich your blog posts with videos, images, links and useful information. You’re likely to get far more PageRank value from those that choose to link to your blog post than what you may lose linking out to another valuable resource or two. “Give and you shall receive”, “Givers get”, karma, etc. You get the point. It works.

  4. 4

    I’d also like to note that Google reserves the right to ignore the nofollow attribute. They likely would never ignore this attribute on blog comment links. They may however choose to ignore this attribute on popular social media sites like Twitter once they establish which accounts they can trust. Another example would be if CNN.com chose to add nofollow to every link. Google would likely ignore most instances of the attribute because they trust that links on CNN.com are valuable editorial mentions of a website.

  5. 5

    i’ve read a few blog posts on this topic and they all seem to talk mostly about blog commenting as spam. My question is what if you comment on a dofollow blog with strictly moderated comments that is relevant to your site with a real comment? How do the search engines treat these links? Are the links worth less in the comments than if they were in the body of the blog post?

  6. 6

    Great post, Jeremy.

    Regardless of the value, real or perceived, of backlinks from blog comments, this is an example of where it all comes down to content.

    Posting relevant, insightful comments on blogs can still help drive users to your site and your services. By putting yourself, your personality, your reputation out there for others you establish yourself as an authority that folks will seek out.

  7. 7

    An honest editorial link posted in a blog comment that does not contain the rel=’nofollow’ attribute is a valid link to Google.

  8. 8

    Definitely link building through similar/familiar blogs to your niche market would make you drive traffic into your site. As far as you provide interesting comments, adding value to those blog´s article posts, blog owners would be happy to receive those comments and let you leave your link as well.

    I recommend joining the conversation about What makes a website Page Rank increase on Startups.com! You can follow this http://bit.ly/cCgRrC link to get straight to the question and answers already posted by other experts.

  9. 9

    Jeremy, if one is using WordPress CMS, there is no provision to selectively give do=follow status to a particular commenter. How does one deal with this?

    Plus, there is this talk about “you should not share your page ranking with other websites”. Is there any validity in this argument whatsoever?

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