If your station is content to copy and paste, it will be search engines do not like, because users want to see the results of the search diversified, rather than repeating the same result. Therefore, although the search engine will temporarily copy the contents of a collection, but over time it was out of fear, and the site contains keyword ranking dropped significantly. And now the search engine in order to ensure the interests of the original author of the original offer protection, in order to improve the user experience.
Copy the contents of the impact sites are optimized
1, the search engine spiders to crawl each site has a set budget, every creeping can only crawl a specific page number. Each time a spider crawling on page copy the contents of wasting some crawling budget. This means can be crawling good pages will be reduced, which may lead to a reduction indexed by the search engine index database page.
2, even the link to copy the contents of the page have wasted their link weights. Copy the page can be obtained PR or link weight, but that will not help them get ranked, the link is wasted.
3, no detailed explanation of how a search engine algorithms they choose which version to display the page. In other words, if we find three copies of the same content, it will filter out which of the two? Which show? Depending on whether the search query terms and different? In short, search engines do not necessarily choose which version you want.
While some SEO professionals may have a debate on the above details, but have a consensus on the whole. However, there are the following problems.
For example, there may be a lot of product pages and print versions of these pages on the site. Search engines may choose to display the printed page in its results. This does happen, but also occurs when the printed page than the home page link right product weight low and therefore should be ranked low.
The solution to this problem is to use canonical tags on all versions of the page, which is marked with the original version.
If you provide to third-party sync this situation may also occur. The problem is that search engines can put your article kicked out of search results, which gave people the reprint version of your article to rank well. To solve this problem, in addition to using your partner use NoIndex article on their page than, let the best partner to put a link to your site on the original source page. This search engine is almost always the correct interpretation and emphasize your original version.
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