I'm running few sites in many non-latin languages such as Simplified Chinese, Traditional Chinese, Japanese, Thai, Vietnamese, etc.
I'm using unicode UTF-8 for all site including English and Latin language such as French, German, etc. See below...
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
I noticed lately that indexed page in Google for all of my Non-latin character (Asian) dropped slowly since October 2008 until now.
I tried to sort out the reason of causing that drop, the only thing that I found right now is the characters of language on all dropped sites were all Non-latin character.
So I'd like to know if Google has problem indexing Non-latin character site that are using UTF-8 unicode?
Anyone come across this? Thanks in advance for any comment.