Sometimes Facebook does not give the information about your site that you want it to. It may be that you post a link to your website on your Facebook page, then you get a title that looks funny and one of the obscure images rather than your logo.

To find out how Facebook will see your page go to:

https://developers.facebook.com/tools/debug

To change what you want it to see you need to specify various “og” titles in the part of your website e.g.