I assume you ask where to add them. There is a lot of training at WA. In short:
-in title
-in url
-in the first paragraph
-in the last paragraph
-in meta title
-in meta description
-in figure attributes
-somewhere in the text where/if appropriate.

Com is related to the type of domain, this is so called Top Level Domain, together with net and org. So I am not sure what the question is.

I totally agree with Pj.....excellent tool!

thanks PJ I tought we had to pay but they were asking for more information

I used Wincher a LOT! Almost daily. With their free membership, you can track links for one website. It's only when you want to add another website when you have to go with one of their paid options. But, I consider it a very useful tool!

You'll often find that even though you've deleted a plugin the settings are still there so you can re-install it and activate it again with the old settings.

thank you I'll try that

You already have your answer, you simply re-install it and set it the way it was previously.

Sure, go to plugins and add new. Then do what is required to activate it.