Site title Settings--symbols have you used them yet?

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The first thing to do in the new station is to set the title of the website, keyword, description. For the title of the site, the commonly used separator symbol is "-", ",", "_", "|", then "--" Have you used it? I'm sure you haven't used it, have you? Some of the well-known webmaster in the introduction of the site title separator symbol also did not say this Chinese separator symbol. But the author strangely found that the original Baidu related products are used "--" this separator symbol:

Is this the special symbol of Baidu? If not, the webmaster to imitate the title format of others how no one thought that the imitation of Baidu will be better? So, I did a small experiment, the personal new station title set such a symbol:

Very strange is that Google and 360 can do seconds, but Baidu, 10 days, home or has not been included! Is this a separate symbol?

Obviously, "--" the symbol is Baidu's special purpose. But when the author of this conclusion, accidentally found such an article:

The Forum also set such a symbol, but he can put the ranking to do the first page (now instead of "-" symbol).

"--" the separator symbol is dedicated to Baidu? I do not know! Perhaps the author of the new station quality problems, resulting in the site did not quickly be included in Baidu, or perhaps ... Readers of you, how to say it?

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