blocks|key|836369|text|这不是一个标准，但我记得我读过一篇关于RDFa的文章。它，或其他形式的微格式化，可能正是您正在寻找的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|836370|entityMap|0|LINK|mutability|MUTABLE|url|http://www.alistapart.com/articles/introduction-to-rdfa/^0|J|4|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

It's not a standard, but I remember reading on A List Apart about <a href="http://www.alistapart.com/articles/introduction-to-rdfa/" rel="noreferrer">RDFa</a>. It, or other forms of microformatting, may just be the solution you're looking for.

blocks|key|1051149|text|我想DC.date标签可以用来做这件事。Dublin+Core元数据相对成熟且广为人知。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1051150|你也可以用XMDP标记你的网站，它有一个日期标签，应该是最后一次修改的日期。|1051151|entityMap|0|LINK|mutability|MUTABLE|url|http://dublincore.org/documents/dcq-html/|1|http://gmpg.org/xmdp/^0|2|7|2|7|0|0|5|4|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|H|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

I suppose the <a href="http://dublincore.org/documents/dcq-html/" rel="noreferrer"><code>DC.date</code></a> tag could be used for that. The Dublin Core metadata is relatively established and well known.

You could also mark your websites with <a href="http://gmpg.org/xmdp/" rel="noreferrer">XMDP</a>, which has a date tag that is supposed to be the date of the last modification.

blocks|key|1051205|text|你可以像James和hangy建议的那样尝试RDFa+(或微格式)，Google通过一个叫做Rich+Snippets的特性来支持它们。使用富片段测试工具来查看它是如何工作的-例如，它确实从用hreview标记的one+of+my+blog+posts中提取dtreviewed和评级。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1051206|entityMap|0|LINK|mutability|MUTABLE|url|http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=99170|1|http://microformats.org/wiki/hreview|2|http://www.google.com/webmasters/tools/richsnippets?url=http%253A%252F%252Fwww.boogdesign.com%252Fb2evo%252Findex.php%252Flws-may-accessible-design%253Fblog%253D2&view=^0|3L|A|1A|D|0|2O|7|1|2Y|K|2|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]|$9|X|A|Y|1|Z]|$9|10|A|11|1|12]]|E|$]]|$1|F|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]|P|$5|I|J|K|E|$L|Q]]]]

You could try RDFa (or Microformats) as James and hangy have suggested, Google supports them through a feature called <a href="http://www.google.com/support/webmasters/bin/answer.py?hl=en&amp;answer=99170" rel="nofollow">Rich Snippets</a>. Use the Rich Snippets Testing Tool to see how it's working - for example it does pick up the <code>dtreviewed</code> and the rating from <a href="http://www.google.com/webmasters/tools/richsnippets?url=http%3A%2F%2Fwww.boogdesign.com%2Fb2evo%2Findex.php%2Flws-may-accessible-design%3Fblog%3D2&amp;view=" rel="nofollow">one of my blog posts</a> which is marked up with <a href="http://microformats.org/wiki/hreview" rel="nofollow">hreview</a>.

blocks|key|1051270|text|对于标记内容，您可以使用microdata的HTML5路径。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1051271|我也在为同样的问题而苦苦挣扎--谷歌可以计算出我网站上某些内容的日期，但其他内容就不行了。我想帮助它，这样它就可以随时获得文章上的日期。|1051272|我正在尝试上面建议的"dc.date“元标签的组合，并使用微数据标记页面上出现的时间戳。|1051273|Google关于如何使用微数据标记时间戳的示例如下：|1051274|<time+itemprop="startDate"+datetime="2009-10-15T19:00-08:00">15+October+2009,+7PM</time>|code-block|syntax|javascript|1051275|entityMap|0|LINK|mutability|MUTABLE|url|http://www.google.com/support/webmasters/bin/answer.py?answer=176035^0|C|9|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|C|$]]|$1|J|3|K|5|L|7|13|8|@]|9|@]|C|$M|N]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

For marking content, you can go the HTML5 route of <a href="http://www.google.com/support/webmasters/bin/answer.py?answer=176035" rel="nofollow">microdata</a>.

I'm struggling with the same question - google can figure out dates on some content on my site, but not others. I want to help it, so it can always get the date on the article. 

I'm trying a combination of the "dc.date" metatag suggested above, and marking up the timestamp that appears on the page using microdata. 

Google's example of how to mark up your timestamps using microdata is:

<pre><code>&lt;time itemprop="startDate" datetime="2009-10-15T19:00-08:00"&gt;15 October 2009, 7PM&lt;/time&gt;
</code></pre>

One thing that search engines really suck with is the date when a website was created. You know the problem: You search for some CSS or JavaScript problem and Google returns a ton of results from 2002 explaining how to fix the problem in IE 5.5 and Netscape 4.6 while the helpful articles are buried on Page 3.

Anyway, I just wonder if there is a standardized or at least generally accepted tag or meta tag that I can put on my own pages to indicate the date they were created?

Not that it helps filtering out the old crap out of search results (especially since the people at #1 with their 2002 articles have zero incentive to change), but I'd just like to do my part :P

Is there a standardized (meta?) tag for the date of a website?

HTML5

搜索引擎最不擅长的一件事就是网站创建的日期。你知道问题所在:你搜索一些CSS或JavaScript问题，谷歌会返回一大堆2002年的结果，解释如何在IE5.5和Netscape 4.6中修复这个问题，而有用的文章却被埋在了第3页。无论如何，我只是想知道是否有一个标准化的或至少是普遍接受的标签或元标签，我可以放在我自己的...

问有没有标准化的(元数据？)标记一个网站的日期？
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