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Congrats on quitting your job! Thats a goal of mine as well, and I really like NsLookup and how the page is structured. I have used domainbigdata.com a lot and like how they show Other TLDs.

I've been trying to find tools that would show other domains that are owned or associated with the domain that was searched. I work with a lot of sales leads and I think having information on other domains a company owns is super powerful for mapping companies and also understand company acquisitions, most companies transfer ownership of domains when they are purchased.

I have a question and ask:

1. There are quite a few tools online that do the same thing, long term what is your goal to differentiate? or where do you want to focus?

2. Other TLDs or Other Associated Domains, is this something that you would be able to find?

3. Can you determine from a DNS search if a domain is owned by a company or by a non-corporate entity (Blog, personal)?

Also from your blog post, I don't know if you were looking for any responses but:

Plan B - Stage 2: Sell an API to visitors.

>I would purchase and use this for a email verification process. I would rather go with a smaller company than large

Plan C - Stage 1: Make a one-off DNS dataset, give it away to founders, and find out how they'd use it and what they need.

>I would use this with Email Domain verification and Email format Verification. I worked with data teams that had to find emails formats & domains, if they had the domains it would save a ton of time and cost. As an end user how I think about this cost is I if I find a domain and run a MX or DNS check on it I will save the results and try now to run it on that domain again. That is why I like this plan, but the API would be super helpful as well.



Thanks for your kind words :)

> long term what is your goal to differentiate? or where do you want to focus?

Most other tools have clunky UX, dated design, or are painfully slow. I'm differentiating in ease of use, clarity and speed. Still a lot to be done, but I think I'm already doing okay compared to other sites.

> Other TLDs or Other Associated Domains, is this something that you would be able to find?

Since GDPR, nearly all WHOIS queries get their owner details purged. You also can't link it based on resolving IP addresses, as many sites use a shared CDN. There might be some signals left, but definitely not enough to give any kind of meaningful coverage to make it useful.

> Can you determine from a DNS search if a domain is owned by a company or by a non-corporate entity (Blog, personal)?

No, for the same reason as above. Here you could scrape the site and look for 'about' sections and do some ML, but that'd be quite involved.

> I would purchase and use this for a email verification process.

What would you like to use DNS for in email verification?

> Email format Verification As in, detect 'firstname.lastname' for 'john.doe@company.com'? There's already a SaaS that does just that: https://hunter.io/


> I'm differentiating in ease of use, clarity and speed.

FWIW I've worked for a small company for the last ~15 years and this is basically our differentiator. Most of our products weren't the first in their market, and we don't have all the bells and whistles, but we really focus on making an easy to use, non-frustrating user experience.


Thanks for the validation :) Crazy that lack of frustration can be a differentiator.


Builtwith.com is excellent for domain association. They have some very good common keys like GTM container, GA etc.


A really great goal. I'm trying to help people with this aim with recommendations on what to do, get your business model figured out, etc. https://cxo.industries




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