Nofollow FAQ Baidu is not very strict with nofollow

"nofollow" label is Google, Yahoo and Microsoft in the previous years together with a label, link plus this tag will not be calculated weights, search engine support nofollow attributes, to a large extent, to inhibit the blog or forum spam. It's a great thing for a webmaster. Here's a Lou of some nofollow FAQ.

　　

This tag is usually used in blog comments or forum posts, because these are the places where the most junk links appear. The Z-blog system defaults to its own nofollow label.

　There are two ways to add nofollow tags to your web site:

<meta name= "Robots" content= "nofollow"/>

This code tells the search engine that the entire page is not tracked and the code is placed between the code.

<a href= "http://lusongsong.com/" rel= "nofollow" > here is anchor text </a>

This code means to add rel= "nofollow" to the hyperlink and tell the search engine that the connection is not tracked.

　　Rel= "nofollow" is generally used in links unrelated to the site

Nofollow in the blog, the forum generally used to message, comment area, a little expansion we can also add it to the less frequently updated pages, such as advertising instructions, website introduction page, note that add rel= "nofollow" is generally the site does not update the page, and site-independent links to join.

　　Is there a link in the nofollow to calculate outside the chain?

　Here is a quote from Google:

Typically, Google does not track these sites, that is, Google does not send PageRank or position text through these links. In essence, using nofollow will prevent us from grabbing the page that the target link points to. However, if other sites link to these destination pages and do not use nofollow, or if the Web pages are contained in a site map submitted to Google, they may still appear in the index. Also note that other search engines have a slightly different approach to nofollow than we do.

Google more emphasis is the PR will not be passed, but the PR does not represent rankings, Zac has said: For users, click on this link you came to another site, did not use the script to do the turn, just an HTML link, this is not an external link is what?

　How to use nofollow in navigation

Many people through experiments show that spiders crawl the first occurrence of the link most important, the first link anchor text is also the most important, but a lot of the first link is the "home" word, but also can not add its keywords, we can through the CSS way to control. For example, the code in the "low-key and gorgeous" template.

<div id= "logo" >

This is through the CSS control, so that its logo image into the first link, but also annotated with the anchor text and description. This looks like "home" is the first link, which is not actually the first one to appear in the code.

　Export links and PR Independent

Many of the site's links are using the nofollow tag, is to cherish links such as gold, many webmasters are afraid of linking to other sites will generate web-level PR loss. Theoretically, the export link does not affect the PR value of this web page. The PR value of any given URL is determined by the number of backlinks and the PR value cast, regardless of the exported link.

Is there a conflict between using both robots.txt and nofollow meta tags?

Both robots.txt and nofollow can ban search engines from crawling pages, and if you use both robots.txt and the META tags, Googlebot will use more restrictive if there is a conflict between robots.txt and meta tags. In specific terms:

If you ban a page in the robots.txt, Googlebot will never index that page or read any of the logo on that page.

If you allow it in robot.txt, but use meta tags on the page to limit it, then Googlebots will visit that page and read the tag inside, but not index it.

　Baidu and Google's attitude towards nofollow

Google for nofollow: The most recent Google search engine Optimization Beginner's guide makes it clear that if you set the "rel" attribute of a link to "nofollow," that means you're sending the message to Google: You don't want Google to keep tracking the pages that these specific links point to, and you don't want to pass the reputation of your own pages to the pages that these links point to. (that is, do not follow the known nofollow link does not pass the appropriate weight)

Baidu for nofollow: web-level nofollow do not track links, do not pass the weight and anchor text, link-level nofollow is the tracking link and record anchor text, but does not pass the weight.

Baidu is not very strict with nofollow

Baidu also finally support nofollow, but it seems not very strict, there has been a Bo friends did an experiment, in a site added rel= "External nofollow" Properties of the B link, Baidu is still indexed in the B site in the back chain.

　　

Thus, Baidu's declared support for nofollow is not as strong as the rumors, at least for now, some exceptions can be found.

Author: Lou This article address: http://lusongsong.com/reed/397.html