Добрый день.
Закройте все сомнительные страницы в robots.txt -
User-agent: *
Disallow: /cgi-bin
Disallow: /?
Disallow: /wp-
Disallow: /wp/
Disallow: *?s=
Disallow: *&s=
Disallow: /search/
Disallow: /author/
Disallow: /users/
Disallow: */trackback
Disallow: */feed
Disallow: */rss
Disallow: */embed
Disallow: */wlwmanifest.xml
Disallow: /xmlrpc.php
Disallow: *utm*=
Disallow: *openstat=
Disallow: /test/*
Allow: */uploads
User-agent: GoogleBot
Disallow: /cgi-bin
Disallow: /?
Disallow: /wp-
Disallow: /wp/
Disallow: *?s=
Disallow: *&s=
Disallow: /search/
Disallow: /author/
Disallow: /users/
Disallow: */trackback
Disallow: */feed
Disallow: */rss
Disallow: */embed
Disallow: */wlwmanifest.xml
Disallow: /xmlrpc.php
Disallow: *utm*=
Disallow: *openstat=
Disallow: /test/*
Allow: */uploads
Allow: /*/*.js
Allow: /*/*.css
Allow: /wp-*.png
Allow: /wp-*.jpg
Allow: /wp-*.jpeg
Allow: /wp-*.gif
Allow: /wp-admin/admin-ajax.php
User-agent: Yandex
Disallow: /cgi-bin
Disallow: /?
Disallow: /test/*
Disallow: /wp-
Disallow: /wp/
Disallow: *?s=
Disallow: *&s=
Disallow: /search/
Disallow: /author/
Disallow: /users/
Disallow: */trackback
Disallow: */feed
Disallow: */rss
Disallow: */embed
Disallow: */wlwmanifest.xml
Disallow: /xmlrpc.php
Allow: */uploads
Allow: /*/*.js
Allow: /*/*.css
Allow: /wp-*.png
Allow: /wp-*.jpg
Allow: /wp-*.jpeg
Allow: /wp-*.gif
Allow: /wp-admin/admin-ajax.php
Clean-Param: utm_source&utm_medium&utm_campaign
Clean-Param: openstat
а также в Yoast пройдитесь по настройкам и запретите к индексации именно эти самые типы страниц, которые выглядят как дубли:). Хуже не будет точно !