The nofollow tag is not mentioned as many times in some SEO articles as related topics such as original article updates and anchor text. However, there are many times when the nofollow tag is still necessary to be used in SEO. The nofollow tag can be understood in a simple way: it is a hyperlink with this tag, which tells the search engine that there is no need to crawl and track this link.
Our website often has some necessary pages, but there is no need to expect to have ranked pages. For example: contact us, online consultation and other such pages, these types of pages are designed for user needs, and we often do not think about the need to SEO such pages to obtain rankings, which is meaningless. If this is the case, then why waste time by letting spiders crawl such pages frequently?
We know that every time a spider comes to our website, it does not crawl all our web pages again every time, and it also has time. After coming for a while and crawling some pages, it leaves again. Then it’s time to do it again. Because of this, the nofollow tag is necessary. We use nofollow for pages that do not need to be included and ranked to avoid frequent crawling by spiders, and leave these more opportunities for other important pages. Every time the spider comes, it will crawl a lot in a limited time.
What needs special emphasis here is: the use of nofollow tags is not so important for small websites. After all, small websites do not have much article data. Even if you do not use nofollow, it will not have much impact on spider crawling efficiency and other aspects. But for medium and large-scale websites, it is particularly important. Because medium and large websites often have to solve the problem of collecting thousands of articles, if nofollow can be used well, the number of included articles will often increase significantly.
I think the key to nofollow is its role in increasing spider crawling efficiency. Of course, there are also other applications, such as the prohibition of weight transfer, which has been fully used in some spam messages and other aspects. This topic is also mentioned in the article "Does Baidu support nofollow tags"?
This article is published by the webmaster of http://www.jf269.com , please indicate when reprinting.
Author Yu Wuqing's personal space