- From: Jukka K. Korpela <jkorpela@cs.tut.fi>
- Date: Sat, 29 Dec 2012 16:11:03 +0200
- To: Katrin Schumacher <katrinschumachermd@googlemail.com>
- CC: www-validator@w3.org
2012-12-28 13:16, Katrin Schumacher wrote: > after integrating rich snippets into my Website, I do have numerous > W3-errors on these pages That's because the pages declares an XHTML 1.0 doctype and it does not allow things like the itemscope and itemprop attributes. You could use an HTML5 doctype instead, but then you have problems with some other constructs, like some meta tags (HTML5 has a very limited set of meta tags it accepts). There's not much you can do about this. I once tried setting up an HTML5 DTD so that people could check the formal syntax of pages (as opposite to having to deal with the rather subjective restrictions imposed by the HTML5 mode of the validator), but the W3C Validator cannot really cope with it, due to technical limitations. > I have concerns that these errors provide disadvantages in SEO. They aren't. SEO has nothing to do with such formal syntax definitions that disallow some new attributes. The question is rather whether search engines pay any real attention to "rich snippets". It seems that for now, they use them only when encountered on some very large commercial or community sites. You can use tools like http://www.google.com/webmasters/tools/richsnippets to see what Google says to think about your rich snippets. It may inform you of some technical issues with the markup. But if everything seems to be technically OK, this still doesn't mean that the snippets have some effect. Yucca
Received on Saturday, 29 December 2012 14:11:30 UTC