Thank you. That will be very helpful. :)

Thanks Kyle. Would deleting it from the other site automatically deindex it on that site, the site is indexed at the moment I believe? I'm just not sure how to do this if not.

Thank you. I see what you mean.

Thank you. Did you create a whole new URL for the 2 of them? How does that work? Would you still somehow keep the 2 URLs of the websites and continue paying for them, or transfer content to a new website and separate the content under categories? I wouldn't have the first clue how to merge them.

LOL, I've told this story so many times now, I should create a post about it. ;-)

I had two sites merged into a brand new domain name.

BOTH sites, I created a backup file for and then cleaned the databases up. Cleaning Your WP Database - Does it Really Need to be Done? This way, all clutter would NOT be transferred to the newly registered domain.

The first domain was super easy to move the content from the old to the new.

I simply created a new backup file (after the database cleaning) from the first one I was taking the content from, and use it to "restore" the brand new domain that was empty of content.

[It's called restoration or importing]
I use the following plugin: Full Backup With a Plugin back then as there wasn't the same amount of content on each site that there is now on the new domain.

[since then, I've change my backup plugin to All-in-One WP Migration, due to file size]

The second one... well... I took the content from the site that I wanted to move the content from, a bit differently.

I exported only the content so to keep all of the comments, images and attached documents. Move Post or Page From One Website to Another I also created a backup file of the 2nd site, so that worse come to worse, I'd have a means of retrieving any lost content.

Once I was 100% certain that ALL of the content from BOTH sites were successfully transferred to the new site... I deleted the two old domains of content, and setup redirects from both of them, to be redirected to the newly registered domain that now contained all of the content.

Once the old domain registrations came due, I let them go by unchecking the option to auto-renew.

I mean, what was the point of keeping domain names I no longer had a use for.

AND, it turned out that the newly registered domain was an old domain name that someone had used in years past and no longer wanted it anymore. The domain name received authority for the years it was previously registered for.

BONUS! Right?

As for the categories... each of the old sites had a different category label for the content, and those remained unchanged once merged into the new site.

I had only had BOTH of the old domains for a matter of months when I realized that I had "bit off more than I could chew", creating TWO sites... and they really were more like categories for ONE topic... thus the decision to merge them.

Hope you find this helps you.

Thank you. It's a huge help. Especially how you've laid out the process so well. I really appreciate the effort you have gone to. :)

Thank you. I've been here since 2013 but didn't fully get involved straight away. I also don't have a great deal of traffic at the moment. It's more about whether a name change that doesn't represent the actual URL will be a problem.