On the function of JS language in SEO

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A talk about SEO, we will first avoid using JS, etc. are considered to be not friendly to the search engine things. Because we all regard the search engine as the first user, but the real user cannot compare with the search engine. This kind of thought actually has the very serious misunderstanding. Here the author to share my personal views on the role of JS in SEO.

JS Performance Good side

JS is a client-side scripting language that has important links to HTML and Web sites. You can see whether a large web site is usually called JS because it does not have to interact with the database. This reduces the burden on the server and shortens the time to load pages. This from search engine optimization, is not the beneficial side, from the user experience, is not improved, so do not put JS final search engine unfriendly.

Second, HTML is rendered static page, JS can bring it dynamic effect, search engine on static and dynamic pages, is really more like static. However, users are more interested in dynamic effects. Search engines have also been improving, to improve the crawling of dynamic pages, from which we can also see a trend, dynamic will be a mainstream, search engines are analog people, we should not take the search engine as the first user. Now there are more people like the effectiveness of Ajax, Google search engine has been trying to crawl the content, in fact, as early as two or three years ago, Google has been able to crawl the JS language, this Zac has also been mentioned in his blog.

JS deficiencies

To JS know people are clear, carving JS is a difficult thing. Second JS on the impact of SEO, Baidu Guide to the Optimization manual also said that the search engine on the JS language is not friendly, it is true that Baidu does not send a crawl JS language information. Because of this, many people try to use less or no JS language.

So how do you weigh the use of JS scripts? Here I think the use of the time is still to use, such as some two-level navigation is to use JS jump, that is directly used. Do not too taboo JS, of course, use more or impact is quite large, so we have to master a degree of problem.

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