Re: HTML in the <head> GoCentral

I'm a web designer / local marketing agency. My client has asked me to do some re-targeting and advertising. I use a commercially available system, where I need to tag website visitors with a tracking pixel, and I run retargeting ads to them later. As it stands, I now need to share the bad news with my client that her GoCentral website does not allow us to use our standard system for retargeting / remarketing, and she either needs to re-do her website in a more capable system, or find someone else.