Dear Dev,

Your sites like www.topupsites.com and www.btctalkers.com do not have a valid SSL certificate.It does not look professional and also might have security flaws.
I would be able to help you regarding this. I would guide you how you could obtain a free SSL certificate. You can send me a direct private message if you are interested.
This would be my contribution to your project.

Regards,

Mustafa