How can i get a website Like the Below mentioned: Can someone Help me

Hi if I want a website ( features on the website ) something like below mentioned

https://smallseotools.com/
https://www.seoweather.com/domain-authority-checker/

How much does it cost for one to make something like this?
can someone let me know if they can help in this?
or at least if I want to add one or two features something like that, how can I get it?
Can I add any features like this on an existing website or by making a new subdomain?
is it possible to add something like this on Wordpress sites as well?

Sorry for so many questions, can anyone let me know more details or source where I can find details on this.

Please move it to the right section, if I posted it in the wrong thread.

no screenshots or what soever added so dunno what you want done.

Stewielenor said:

no screenshots or what soever added so dunno what you want done.

Click to expand...

sorry i forgot, just edited the links