แก้ที่ robots.txt
User-agent: *
Disallow: /cgi-bin
Disallow: /wp-admin
Disallow: /wp-includes
Disallow: /wp-content/plugins
Disallow: /wp-content/cache
Disallow: /wp-content/themes
Disallow: /feed
Disallow: /*/feed
Disallow: /comments
Disallow: /author
Disallow: /tag
Disallow: /archives
Disallow: /2010/*
Disallow: /2011/*
Disallow: /2012/*
Disallow: /iframes
Disallow: /privacy-policy.html
Disallow: /web-site-agreement.html
Disallow: /category/*/*
Disallow: */trackbackUser-agent: Googlebot
Disallow: /*.php$
Disallow: /*.js$
Disallow: /*.inc$
Disallow: /*.css$
Disallow: /*.gz$
Disallow: /*.wmv$
Disallow: /*.cgi$
Disallow: /*.xhtml$
Disallow: /*.xlsx $
Disallow: /*.doc$
Disallow: /*.pdf$
Disallow: /*.zip$User-agent: *
Allow: /imagesSitemap:
http://yourdomain.com/sitemap.xml.gz 
ใช้อยู่ ยังอยู่ครบ ทุกอัน
ความรู้ทั่วไป
