Tracking Orders in your site

Hi guys, a question here.

So in your stores, what tracking websites to use. I know a lot of people use like aftership and other tracking plug-ins in shopify but I really like 17track.net. If I redirect customers to 17track, would it make the site look untrusted or not. And is there anyway to have 17track‘s code inplimented into shopify so it can just be inside the website instead of another tab?

Thanks