Use domain.com OR www.domain.com. Please help Me

[thatvong]

Hi everyone,
I'm using an expired domain. I have checked the backlink and most of them are "http:www.domain.com".(non-https).
My website currently is https:domain.com.(Non-www) and there have been some posts on it.
I'm recovering some old articles so how can I make the most of the backlink's power.
Questions:
1. www.domain.com and domain.com can be called 2 separate domains?
2. I have used the plugin: Really Simple SSL to redirect from http -> https so Has the power of backlinks been changed or not?
3. For example, I need to recover a page: http:www.domain.com/page-abc to https:domain.com/page-abc: How should I do it to the highest efficiency
Any advice for me!
Thanks in advance

 

[Aulig]

1: No
2: No
3: Not sure what you mean

 

[FBGuru]

http://domain.com -> https://www.domain.com -> https://domain.com

Look how many chains you got there.

if most of the backlinks are pointing to http://www.domain.com then going with https://www.domain.com will give you the maximum benefit.

1. yes because www is technically a sub-domain and non-www is the root domain.
2. http -> https is also a redirect so you'll definitely lose some authority but nothing when compared to http -> https://www -> https://
3. Really Simple SSL plugin will take care of it.

The only task you have right now is to goto general settings and enter https://www.domain.com instead of https://domain.com

 

[thatvong]

I did not check back when posting this topic so there are some errors (Http). How can I edit the topic in BHW?

 

[thatvong]

http://domain.com -> https://www.domain.com -> https://domain.com

Look how many chains you got there.

if most of the backlinks are pointing to http://www.domain.com then going with https://www.domain.com will give you the maximum benefit.

1. yes because www is technically a sub-domain and non-www is the root domain.
2. http -> https is also a redirect so you'll definitely lose some authority but nothing when compared to http -> https://www -> https://
3. Really Simple SSL plugin will take care of it.

The only task you have right now is to goto general settings and enter https://www.domain.com instead of https://domain.com

many thanks for your advice! It's very detailed.
Some question:
1. Currently, my website has about 10 Posts and 6 Pages. So If I change from https://domain.com to https://www.domain.com then How will they change? and Do I need to install anything? such as in the wp-admin, google analytics, GSA etc...
2. If I changed from https://domain.com to https://www.domain.com so when the visitors enter directly "domain.com"(non-www) in the browser, What will happen? Do I need to install the plugin to redirect from Non-www to www
Thanks

 

[WannaBeIzaya]

1. No - Google stopped considering subdomains has two different sites a long time ago because some were using subdomains as link farms.

2. There is no need to use a plugin. Just enter the https version in your WordPress general setting and the rest of redirect WordPress will handle for you. Only use Really Simple SSL if you are having mixed content issues.

3. GoogleBot uses the latest version of Chrome and can follow up to five redirect hops. So try to limit your redirects and use 301 via .htaccess to achieve it.

 

[thatvong]

1. No - Google stopped considering subdomains has two different sites a long time ago because some were using subdomains as link farms.

2. There is no need to use a plugin. Just enter the https version in your WordPress general setting and the rest of redirect WordPress will handle for you. Only use Really Simple SSL if you are having mixed content issues.

3. GoogleBot uses the latest version of Chrome and can follow up to five redirect hops. So try to limit your redirects and use 301 via .htaccess to achieve it.

I was really confused by the two comments of you and @FBGuru