Nofollow is an anti-spam link label jointly developed by MSN, Yahoo, and Google in order to prevent the proliferation of spam links. Its function is to tell the search engine spiders "Don't follow this link." If an anchor text link contains the attribute rel="nofollow", then the link will not inherit the weight of this page. I think you have done it in vain. This link has no effect because you made it. We all know that adding a link to our website on a page is to gain the weight of this page. When you cannot gain the weight of this page, it is equivalent to doing useless work.
For example, if we want search engine spiders not to follow all the links on this web page, including external links and internal links that are not on this page, we only need to add this line of code to the original meta tag of this page: <meta name="robots" " content="nofollow">. This means that all links that exist on this page will not be crawled (tracked) by search engine spiders.
If I want to specify a link on a certain page to prevent it from being crawled by spiders, I just need to add the code rel="nofollow" to the specified link, for example: <a href="index.html" rel ="nofollow">》Brew honey network</a >
Nowadays, mainstream search engines support nofollow. Baidu, Google, Bing, and Yahoo all support nofollow. Once the anchor text contains the keyword attribute rel="nofollow", search engine spiders will not crawl the link and will not The link will be weighted, and of course the text of the anchor link will not be included.
Scope of use:
(1) Comments and messages on blogs and websites contain the rel="nofollow" tag. If your website is a blog site or has a comment page where links can be posted, then you need to add rel="nofollow". Otherwise, these spam links will be embedded in your web pages, allowing your website to vote for these spam sites invisibly. became the victim of implicated punishment.
(2) The advertising links of the website may need to add the rel="nofollow" tag, so as to prevent the advertising links from having a negative impact on your website, and thus prevent these web pages from bringing too much negative impact to you. impact, thereby avoiding the risk of your website’s weight declining.
(3) For links that are not helpful for keyword ranking, add the rel="nofollow" tag, such as the bottom navigation of the website, about us, contact us, website recruitment and some registration and login links of the website. You may need to add rel=" nofollow" because this link has no effect on ranking.
This is what I summarized when I listened to Mr. Moon, the founder of the SEO Research Center, give a lecture today and searched for information myself. I hope it can help novice SEOs. Welcome everyone to communicate with me on QQ, QQ: 921324958
Thanks to fanxinying for his contribution