I used a site like that to get my list of Unicode references. It was more reliable and readable that attempting to copy\paste the separate characters. I find it too hard to tell them apart. 
If I remember, Wikipedia was also quite useful in listing many of the alternates https://en.wikipedia.org/wiki/Quotation_mark#Unicode_code_point_table
@sophist & @Peter69 Could I suggest you two just ignore each other? Yeah, we get it you disagree with each other. Does not need constant repeat on the public forum.