Blogspot blogs offer HTML editing so you can insert a “meta” keyword tag directly into the blog's code.
Meta Keywords are a specific type of meta tag that appears in the HTML code of a Web page and help tell search engines what the topic of the page is. ... The most important thing to keep in mind when selecting or optimizing your meta keywords is to be sure that each keyword accurately reflects the content of your pages.
Step 1: Login to your blogger.
Step 2: Choose your one blog.
Step 3: Go to Template>>Edit HTML.
Step 4: And find the code <b:include data=’blog’ name=’all-head-content’/>
Step 5: Then paste the Below codes below the above code.
<b:if cond='data:blog.url == "PAGE-URL"'><meta content='PAGE-DESCRIPTION' name='Description'/><meta content='PAGE-KEYWORDS' name='keywords'/></b:if>Step 6: Now you have to paste the above code every time when your posts.
Note: If you have 50 posts, you should copy and paste the above code 50 times too.
Step 7: Click on Save template button.
Note:-
- Write the URL of your post in PAGE-URL.
- Write meta description in PAGE-DESCRIPTION.
- Write meta keyword in PAGE-KEYWORD.