Instead of putting all your eggs in the Google basket one should incorporate the things the "other" search engines look for when their bots visit your site/blog. Maybe after doing your target audience research for the site/blog (you did do research on your target audience, didn't you?) you found that your specific audience does not like Google and prefers another search engine?
...find out why it‘s important that you don‘t overlook alternative search engines and how you can include them in your optimization process...
How writers can optimize content for a variety of search engines
Have you considered other search engines when optimizing your website or blog's content to get the most exposure?