Seo optimization-can a website use duplicate content?

Content plagiarism is a key issue for search engines, especially Google, when searching for duplicate content. First of all, I want to talk about the difference between content plagiarism and similar content. For websites with similar content, google marks "similar pages" behind the URL in the search results. However, if Google finds that the original copy, that is, the content is plagiarized, google will never be easy, and the rankings of such websites will decrease, or even be completely deleted from its database.

Some website administrators and some SEOER disagree with the duplicate content and feel that there is no need to worry too much. Some discover the seriousness of the problem, and there are many examples of such problems around me, my attitude towards Google's severe attack on counterfeit websites some time ago is that this is inevitable. In addition to the illegal products sold by these counterfeit sites, it violates the interests of Google, another reason is that there is a lot of content plagiarism in these fake sites, and some may even be completely copied. In fact, this kind of website is not long enough. Google must kill these websites, do not think that Google has nothing to do, but it is just the time to come.

Repeated content is actually divided into the following types. We need to understand the differences:

(1) re-printing: it is a form of repeated content. It is published on multiple websites simultaneously after being permitted by the copyright owner. In fact, you can also think of it as a reprint. We often add "if you repost the source of this article and add my link" at the end of an article ". The purpose of this practice is to get a part of the chain, and it is a method of external chain. For example, in the English SEO operation, I submitted the content of the press release platform, there are also related content aggregation websites in China. Duplicate printing is harmless. It does not completely duplicate content, but may be classified as "similar pages", thus being overwritten by other search results.

(2) image websites: this word should often be heard by us. Anyone who has some knowledge of SEO knows that this is a cheating method. This causes the website to be cleared from the search engine database. At the beginning, website images were a website security setting. Copying the same website can avoid any loss or security risks caused by website problems. However, it is clear that such behavior has evolved into a malicious behavior, such as fake websites, phishing websites, and illegal access to users' private information.

(3) content plagiarism: content plagiarism is a most common and silly behavior that is copied from other websites without modification. It has no technical content and makes no sense.

(4) intra-site repetition: this intra-site repetition is interesting. That is to say, what if you use duplicate content within your own website? This is actually not desirable, and the search engine will also punish you.