I've some pages in my site in Chinese but I don't understand Chinese (it's some GIS data).
Is there any way to submit sitemap to Baidu?
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http://zhanzhang.baidu.com/sitemap/index is the (sparse) documentation about sitemaps for Baidu. It only describes that it may help to submit your sitemap, and it shows a screenshot of their webmaster tool, listing several sitemaps and their status. However, it seems that they intend this feature only for "high quality" sites, on invitation basis.
Here is also a FAQ about sitemaps: http://help.baidu.com/question?prod_en=master&class=477. They say, for example, that
So you’d need to register an Baidu account, login to their webmaster tool, add and verify your site(s) and then … wait and hope that you are invited to upload your sitemap. I don’t know their process, but I wouldn’t assume that this will happen for your sites.
http://zhanzhang.baidu.com/sitesubmit/index is their site submission tool, which even works anonymously. It’s probably intended to submit your website’s homepage only (e.g.,
example.com), but you also get a success message ("URL提交成功" = something like "URL successfully submitted") when entering the URL to your sitemap. However, this probably doesn’t mean that they’ll use your sitemap that way.
And special cases: For WordPress, there seems to be an official Baidu plugin that pushes any new content to Baidu and allows them to show updates in real time. For Discuz! forums, there is also a Baidu sitemap submission plugin.
Baidu has a Webmaster Tools application that is written in Chinese. But all is not lost. Here is a tutorial:
The tutorial is written in English and translates the options for you. I am not sure how up to date this is, but it does look complete otherwise and may be useful.
I do not see that Baidu reads the robots.txt file for a sitemap. But just in case, here is the format.