Scribd PDF 搜索引擎优化功能
最近大家都注意到 Scribd 中的 PDF 文档对于搜索引擎来说也对 SEO 友好。例如链接 http://www.scribd.com/doc/ 17135767/FREE-by-Chris-Anderson
如果您打开页面并查看 HTML 源代码,则不会显示 PDF 中的纯文本。但是,如果您从 Google 搜索打开页面的缓存版本,则会出现一个标签 html_wrapper,其中包含整个 PDF 文档的文本。 它们是否根据发出请求的用户代理显示不同的内容 - 例如。浏览器还是机器人? 我听说过一些 SEO 做法不建议为机器人显示不同的内容?从 SEO 的角度来看,这种做法有多糟糕?
All recently noticed that PDF documents in Scribd are also SEO friendly for search engines. For example the link http://www.scribd.com/doc/17135767/FREE-by-Chris-Anderson
If you open the page and see the HTML source code, the plain text from the PDF is not presented. However if you open the cached version of the page from Google search it appears a tag html_wrapper which contains the text from the entire PDF document.
Do they display different content depending of User-agent that make the request - ex. browser or bots?
I've heard some SEO practices that don't recommend displaying different content for bots? How bad practice is this from SEO prospective?
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这就是谷歌看到的
http://webcache.googleusercontent.com/search?q=cache:- LY7o-liYlsJ:www.scribd.com/doc/17135767/FREE-by-Chris-Anderson+site:www.scribd.com/doc/17135767/FREE-by-Chris-Anderson&hl=en&strip=1< /a>
是的,你不应该向 googlebot 显示与人类用户不同的内容,说有一些方法可以进行良好的条件渲染(即:为无 cookie 客户端渲染,为无 javascript 客户端渲染,为没有语言标头的客户端渲染, ...)这种渲染可能会产生误导,但如果没有误导,那么对于谷歌来说可能没问题。如果你进行这种条件渲染,那么这始终是一个意图问题。
this is what google sees
http://webcache.googleusercontent.com/search?q=cache:-LY7o-liYlsJ:www.scribd.com/doc/17135767/FREE-by-Chris-Anderson+site:www.scribd.com/doc/17135767/FREE-by-Chris-Anderson&hl=en&strip=1
yeah, you should not display googlebot different content then a human user, said that there are ways to do ok conditional rendering (i.e.: render for no cookie clients, render for no javascript clients, render for clients without a language header, ...) this kind of rendering can be missleading, but if is not missleading then it might be ok for google. if you do this kind of conditional rendering it's then always a question of intend.