1st of all let me thank you so much because for the 1st time I finally understood the technical implications in Matt Cutts’ article about “PageRank sculpting”. You are really an excellent writer! I went back and read Cutts’ article again and still without your post I would have only thought for the nth time: “Oh ok, PR sculpting is not that important anymore, so who minds?!” But your clever syllogism after a perusal of his article makes evident to me now the PR EVAPORATION due to nofollow links.

There is just one thing that make me still suspicious about having all this stuff clear (or at least quite clear).

You say: “Well, suppose you used rel=nofollow on a login page because search engine spiders don’t need to login to your site. What exists on that login page? Typically your header, your side menu, and your footer. Previously it was suggested to nofollow such links, to prevent unnecessary drain. This is no longer a good idea”.

But Cutts says clearly on the “PageRank sculpting” article: “There may be a miniscule number of pages (such as links to a shopping cart or to a login page) that I might add nofollow on, just because those pages are different for every user and they aren’t that helpful to show up in search engines.”

So what should we do? I would rather follow what yous ay, because it convinced me, but why do you think Matt says what I posted above?

Thanks

I heard that Google considers a sub-domain a different website. So on my main website I have a link (on every page) to the website blog hosted on a sub-domain with “nofollow”…

On the other hand, I have a regular link in the blog that points to the main site (I want to pass the juice from the blog to the site)

Is it a valid approach? Is there any pagerank lost with the new calculations?

Thank you

PageRank, have the same basic concept of link popularity, but it does not only consider the “number of” inbound and outbound links. The approach used is a page akan diangap important if other pages have a link to the page. A page will also become increasingly important if other pages have a rank (PageRank) refers to the high page.

With the approach used by the PageRank, the process occurs recursively where a ranking will be determined by the ranking of web pages that rangkingnya determined by the ranking of web pages that have links to the page. This process means a process that repeatedly (rekursif). In the virtual world, there are millions and even billions of web pages. Therefore, a web page ranking is determined from the link structure of the entire web page in the virtual world. A process which is very large and complex.

1. Include the JS from an external file which is blocked with robots.txt OR blocked with referrer or IP checking. I’ve done this for security before, you check to see if the included JS is being included from your local page by looking at the http_referer variable. If not, you don’t serve it.

2. Or muddle it in such a way that makes it hard to read, such as

document.write(“<a hre”+”f”+”=”+”ht”+”tp”+”://www.exa”+”mple”);
document.write(“.com”+”>”+”example”+”</”);
document.write(“a>”);

There are far more complex methods as well.
The downside of this method is accessiblity, you lose it.

Try this out:

http://www.javascriptobfuscator.com/Default.aspx

It encodes the JS (encrypts it in a way) to really make it hard to follow.

Many thanks, you’ve solidified the half-formed conclusions I’ve had since hearing about the nofollow/PR changes.

Keep the external links off your menu, footer, and header.

Can you expand on this: Also, if there is a repeating link on every page of your site, making sure that isn’t hurting you is also important.