friends
I have to find that a given(any) website is using microformats or not,how to do that?I'd seen how to use micro format but still not getting which are those exceptional tag,used only to make microforts.should I search for hcard or vcard??or span classes I am not getting pls help me. does google provide any api for that, I searched google webmaster as well.I am using c#,asp.net.
microformats.org has all the information you are searching for regarding class names, etc. You can use this bookmarklet to extract vcards on a page:
However that's only going to show vcards, so if you're testing a page and it has no vcard, that doesn't mean that it does not have other microformats on the page elsewhere.