Help me understand why my new domain has DA 11

I bought a domain on January 2023 and started my blog on April of this month. Just for fun I used Ahrefs' free backlink check tool and I am seeing that I have a domain rating of 11
Right now only 3 sites are linking to me, 2 of them are those shitty websites that links to domains for sale and the other one is a reputable company (DA 80) who mentioned in a blog article a twitter user with the same user than my domain name and linked to me a couple years ago.
I am trying to understand how is it possible to have that DR (is domain authority the same that domain rating?) but I can't seem to find an answer, I checked the wayback machine but haven't found any past history on the domain.
To be fair, I was kind of amazed that the domain was available because it was really obvious (imagine having myfirstapartment.com available)
Anyway, if you can enlighten me I would really appreciate it.
Thanks!

canellle said:

(is domain authority the same that domain rating?

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In a general sense, domain authority and domain rating mean the same thing: how strong a domain is.

In a "SEO tool" sense...

- domain authority (also known as DA) is a metric invented by MOZ (previously known as SeoMOZ) and is calculated based on the power of backlinks (of course, by "power" I mean the power that MOZ gives to those backlinks, which is not the real power of a backlink because only google knows the power that backlinks carry because it's their algorithm that matters, not MOZ's algorithm, not Ahrefs' algorithm, not Semrush' algorithm, not anybody else's algorithm... Only google's metrics matter, but google doesn't make domain authority public anymore, so we have to use 3rd party metrics like DA from MOZ, or DR from Ahrefs to try and guesstimate the real power of a backlink)

- domain rating (also known as DR) is a metric invented by Ahrefs and is also calculated based on the power of backlinks, more or less.

So, DR and DA mean the same thing - more or less - but they're calculated slightly differently by their company (MOZ and Ahrefs). You can read more about how MOZ calculates their DA and how Ahrefs calculate their DR on these pages:

https://moz.com/learn/seo/domain-authorityhttps://ahrefs.com/blog/domain-rating/
In conclusion.... if we're talking about SEO in general, then "domain authority" and "domain rating" are the same thing... well, they refer to the same thing at least...
But if we're talking about SEO tools like Ahrefs, MOZ, Semrush, MajesticSEO, etc... then DA and DR are 2 different things (although they are calculated similarly, as you can see from the pages I've linked you with above)

canellle said:

the other one is a reputable company (DA 80)

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there you go! That's why your site is DA 11, some of that high authority (80) has passed on to your site, increasing it's DA.... At least that's what seems to have happened, at a first glance...

It's more simple to give an answer if you indicate your domain.
Check if was registered before on https://completedns.com/dns-history/