Well… if your site is on Wordpress you can add the CK form to the theme so it shows in the footer of every page for example.
Same thing applies to other builders (squarespace, wix, etc) that use "themes" or "templates".
Either one of these options requires some tinkering with the backend so if you're not comfortable doing that, get someone on fiverr to do it for you. Shouldn't cost more than a few bucks and it shouldn't take more than an hour or so.
You only need to do that once, btw. Once you do, it will show on all your pages.