@galaxysailor good to know that you were able to fix the issue ??
You were wondering how I was able to get the information of the DNS records associated to your website. First of all this is public information so you do not have to worry about it, there may be methods to allow you to hide this information but it is not worth the effort nor the money.
There is a tool named “Dig (Domain Information Groper)” [1] which is used to query information of the DNS which is the system that allows to associate an IP address to a domain name. For example, your website is hosted in a shared server located in “74.50.21.55”, not many people would remember this address so years ago DNS was introduced to translate a name “galaxysailor.com” to these numbers. If you buy a VPS or a reserved IP address you could simply enter that address in your browser and the site will load just fine, if you do that now it will not work because the IP address is associated to more websites, that is why I know that you have a shared account.
I wrote this script [2] to find the information shown in my previous message. As you can see it was not that hard, there is also the WHOIS [3] database, web scanners like this [4], vulnerability scanners [5], penetration testing frameworks [6], and many other tools that a person could use to gather information of your site for a legitimate security audit or to attack it.
[1] https://en.wikipedia.org/wiki/Dig_%28command%29
[2] https://cixtor.com/pastio/4ifmzv
[3] https://en.wikipedia.org/wiki/Whois
[4] https://sitecheck.sucuri.net/results/galaxysailor.com
[5] https://sectools.org/tag/vuln-scanners/
[6] https://www.metasploit.com/