This is the only way to use labels as meta keywords..
Here is the code to do it.. which you should place instead of the Head tag..!
The Code is commented and it also outputs the Title and Meta Description tags(using Post title) for your convenience..
<!--::::::::::: Block1: Output post meta keywords -->
<b:if cond='data:blog.pageType == "item"'>
<b:section id='meta1' showaddelement='no'>
<!-- widget must be a of Type = 'blog' to have posts data exposed, and must have a unique id -->
<!-- Empty Includables(functions) to output nothing, You must keep them ): -->
<b:widget id='Blog2' locked='no' type='Blog'>
<b:includable id='nextprev'/>
<b:includable id='backlinks' var='post'/>
<b:includable id='post' var='post' />
<b:includable id='status-message'/>
<b:includable id='comment-form' var='post'/>
<b:includable id='backlinkDeleteIcon' var='backlink'/>
<b:includable id='postQuickEdit' var='post'/>
<b:includable id='commentDeleteIcon' var='comment'/>
<b:includable id='feedLinks'/>
<b:includable id='feedLinksBody' var='links'/>
<b:includable id='comments' var='post'/>
<b:includable id='main' var='top'><!-- Main Function of Any widget comes with ID 'main' -->
<!-- Loop Page Posts (only 1 in a post page )-->
<b:loop values='data:posts' var='post'>
<b:if cond='data:post.labels'>
<!-- If the post has labels, make Meta keywords by looping lables -->
<meta name="keywords" content="<b:loop values='data:post.labels' var='label'><data:label.name/><b:if cond='data:label.isLast != "true"'>,</b:if></b:loop>" />
</b:if>
</b:loop>
</b:includable>
</b:widget>
</b:section>
</b:if>
<!--::::::::::: Block1 END -->
<head> <!-- THE HEAD -->
<!-- must include(called) here to output other head sub elements -->
<b:include data='blog' name='all-head-content'/>
<!--::::::::::: Block2: Output Index Title,keywords,decription and Post Title,description -->
<!-- Post/Archive Page -->
<b:if cond='data:blog.pageType != "index"'>
<title><data:blog.pageName/></title>
<meta name='description' expr:content='data:blog.pageName' />
<!-- Index Page -->
<b:else/>
<title><data:blog.pageTitle/></title>
<meta name='keywords' content='your,blog,keywords!!' />
<meta name='description' content='your blog description!!' />
</b:if>
<!--::::::::::: Block2 END -->Some Issues you should be aware of ):
1- XHTML validation will give your warnings about these issues :
Meta Keywords tag Appears before the Head tag.
Why we have to put that code before the head tag? you have to ask ):
well.. You can't place a widget outside of a section, you can't place a section inside head tag. and Post lables must be called inside of 'Blog' widget.
Meta Keywords will be surrounded with Div tags which should not appear there.
why? Cause Widget and sections Tags are auto. converted to div tags by Blogger..!
2- Some Meta tags analyzers will warn you that they don't see meta keywords (Cause it was outside of the head).. But Most search engines would be able to find your meta keywords..
As you can see that's why I'm separating the code into 2 blocks:
first one outside the Head tag to output Post Meta keywrds.
Second one inside the Head Tag to output Title and meta description of all pages and meta keywords for index page; without the need of a widget. And in case an engine didn't like those meta keywords, you still have the title and description where they should be.
3- After Adding that code , you will get errors when trying to do anything in the 'Page elements' and clicking save. the Only solution is cut Block1 from the template & save, do what you need in 'page elements' & save. paste Block1 back in the template.
It is the only way, until Blogspot pay attention to the issue!
To edit your Blogspot template
Go to Layout > Edit HTML > Check 'Expand Widget Templates', and don't forget to save a backup before you do anything..
Don't forget to remove those comments.
Replace those Static Blog meta tags content with real ones.
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