I have removed all the files in that website, I think it might be caused by the search engine robots.

的站点以及目录下的所有文件，这件事情可能是因为搜索引擎蜘蛛爬行我的站点所造成的。

youdao

Search engine robots will follow the link to your site map and will most likely add all your pages to the index.

搜索引擎机器人会根据链接浏览站点舆图，把所有网页添加到索引中。

youdao

So don’t lose sight of the fact that you're also providing this information to humans – not just robots (i.e. search engine bots).

所以请你不要忘记你是在向人类而不是机器人（如搜索引擎机器）服务。

youdao

Further, any French newspaper can opt out of the search engine just by making a minor change to the robots.txt of their own site.

FORBES: The French Don't Seem To Understand This Economics Of Google Thing Really, Do They?