Does having multiple websites on one server (virtual host) affect SEO? The question may seem simple, but in reality, there are some necessary backgrounds that have not been explained, so it needs to be answered in two layers. Does using virtual hosting affect SEO effectiveness? If it's just; Same server, multiple websites;, So this question is equivalent to asking: Does using virtual hosting affect SEO effectiveness? It can be said with certainty that virtual hosting has no impact on SEO, as this is the norm. Most websites in the world are hosted on virtual hosting, and search engines know that they do not discriminate against websites that use virtual hosting. But high configured virtual hosts have better performance than low configured ones, such as high or low bandwidth. Of course, the premise is that the virtual host used is fast enough and there are not many cheating websites on the same host. There are many articles online that say using virtual hosting has a negative impact on SEO performance because virtual hosting is slow. Don't be misled by this statement. The speed of page opening does indeed affect SEO, and the impact will become increasingly significant in the future. But virtual hosting and slow speed are not necessarily related. Virtual hosting can be fast, while dedicated servers can also be slow. Many articles promoting this viewpoint are written by host selling companies, who just want to sell more expensive exclusive servers. The clustering of cheating websites is similar. If most of the websites on the same server are cheating, search engines may punish the entire server or IP. If you are one of the few legitimate websites, it will be affected. However, in reality, there are hundreds of websites on a server, and most of them happen to be cheating. How unlucky would it be to encounter this? This is more likely to be a person renting an independent server, putting on a bunch of cheating websites, being punished, and then claiming that having multiple websites on one server is not conducive to SEO. Does having multiple websites affect SEO effectiveness? The question goes on to say, if these websites have similar keywords in the same industry but different architecture and content, will it affect SEO? The questioner missed two key pieces of information: First, is the content original and unique? Secondly, are these websites owned by the same person or company? If these websites are not owned by one person or company, is it just a coincidence that many websites in the same industry are placed on the same server? It has no impact on SEO. Although I believe the probability of such a coincidence occurring is extremely low. If the content is truly original and of high quality, and different websites have different content, even if the website belongs to one person/company, it will not affect it. Having the ability to create multiple high-quality websites is a good thing. But I guess what this reader really wants to ask is, these websites belong to the same person or company, and the content is plagiarized, reposted, or similar. If they are placed on the same server, will it affect SEO? So this is group cheating. If the search engine doesn't detect it, it's okay. If it does, punishment and demotion can be expected.

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