If under the “Stallion WordPress SEO Plugin” : “SEO Plugin Warnings” Tab : “Yoast WordPress SEO Plugin Warnings” you see the following SEO warning:
“Titles and Metas – Archives : Date Archives”
“Meta Robots: noindex”
You have a serious search engine indexing issue on your WordPress site regarding your WordPress Date Archives.
While you have this SEO warning, the Yoast WordPress SEO Plugin is stopping all search engines from indexing your WordPress Date Archives!
Continue Reading Yoast WordPress SEO Plugin Noindex Date Archives Tutorial