How to ctrl+click without right clicking?
Use Karabiner (Download-link: https://pqrs.org/osx/karabiner/) for this. With Karabiner it is possible to reassign every single key. 

So you can use the control-key for example for letter i (meaningless, but useful for your problem).

Lock at the picture below, there I have change the function for control-right to write the letter i.  



So now I hope you can use Ctrl + Click on this website!