shortly:

What can i do to prevent that google lists unused pages ... from odoo like www.mydomain.com/certifications 

Situation:

we used an adgrants entry and found that google automatically added some clickable links which are linking the wrong page, in this special case it points instead of "about us" which tells the link label --> to /certifications which is definitly an odoo site not used from our website as content relevant for our company.

Workaround at the moment:

rewrite rule inside my webserver nginx to redirect /certifications.....* at all but it does not fit to the linked page at the google presentation of the found page of us. 

location ~ /certifications(.*) {

return 301 http://www.mydomain.com/about_us$1;

}

ut this workaround is not good cause there are more possibilities for sure of not used pages .

i think preventing this somehow inside odoo is the solution