We made mistake on our website when we tried related SEO features recently. Our mistake made this website was disappeared in Google searching result pages. If people input some keywords which just very matched our website, they would not see our website whatever they turned how many pages on Google.
The reason was the below line of code in .htaccess file which we misunderstood from other website:
Header set X-Robots-Tag “noindex, nofollow”
Misunderstanding SEO about X-Robots-Tag Technology Will Cause Big Trouble to You !
Please read this blog to get detail reason.
Just remember: If you do not understand what the X-Robots-Tag is and how it works, Never touch above line of code !! Otherwise you would lost lots of things on your website.
We hope our website get recovery now since the issue removed.