hughesey

With our massive domain name dataset, it was about time we exposed a way to search for subdomains for any domain name. Hopefully people find this useful!

Thanks for the kind words and glad it's been useful :).

100% agree that there will be more ccTLD operators that will implement RDAP. The sooner we're on a consistent protocol the better!

This was announced originally early last year. It removes the requirement for TLD and nTLD (not ccTLD) operators to have a WHOIS service available, but doesn't mandate they must shut them down.

So far the sunsetting has had little effect with most TLDs still having their WHOIS services online. In reality, I think we'll see a period of time where many TLDs and nTLDs have both WHOIS and RDAP available.

Additionally, since ccTLD's aren't governed by ICANN, many don't even have an RDAP service available. As such, there's going to be a mix of RDAP and WHOIS in use across the entire internet for some time to come.

Disclosure: I run https://viewdns.info/ and have spent many an hour dealing with both WHOIS and RDAP parsing to make sure that our service returns consistent data (via our web interface and API) regardless of the protocol in use.

Heya,

Founder of https://viewdns.info/ here (used by and mentioned in the article a bit). If anyone is doing this kind of research, feel free to reach out at [email protected] as I'm more than happy to extend some free API credits etc!

-Hughesey

You can also potentially view the historical DNS A records for the domain to view the pre-Cloudflare IP at http://viewdns.info/iphistory/.

There's some reverse engineered zone files for a lot of cctlds at http://viewdns.info/data/.

So has http://viewdns.info. Free too.

Or just http://ViewDNS.info/ for a free alternative :)

For those without domaintools commercial accounts... http://viewdns.info/reversewhois/?q=seemaexports3%40gmail.co...

Also available at http://viewdns.info/iplocation/. There's an API as well http://viewdns.info/api/.

There's one at http://viewdns.info/ if you're only after common ports.

NS records pointing to Syrian Electronic Army - http://viewdns.info/dnsrecord/?domain=nytimes.com

Dates are when the domain was last checked by the site.

Once seized, they generally point them at the server at 74.81.170.110 which hosts their seized image. Thus using a simple reverse IP lookup we can see a list of all seized domains: http://viewdns.info/reverseip/?host=74.81.170.110

Suggesting an addition http://viewdns.info/ - A collection of free DNS tools.

The Internet is Iran is already quite unique, thanks to the strict Government controlled filters in place.

There was a recent study testing the top 100 websites in each of Alexa's site categories. It tested if each was available in Iran using the Iran Firewall Test (http://viewdns.info/iranfirewall/).

The result? Approximately 27% of sites we tested were blocked. Categories such as adult sites saw much higher rates.

The research piece is here for anyone interested: http://viewdns.info/research/current-state-of-internet-censo...

Have you tried http://www.viewdns.info/ismysitedown/ ?

Not a blog post but a great book.

The 4 Hour Work Week by Timothy Ferris - http://www.amazon.com/gp/product/0307465357/ref=as_li_ss_tl?...

Quite litterally changed my whole perspective on just about everything!

100 websites from EACH of Alexa's 15 categories = 1500 sites. Sure the sample could have been bigger, but with millions, if not billions of websites in existance, what number would you class as a representative sample?

Can find them using Reverse IP Lookups as well: e.g. http://viewdns.info/reverseip/?host=ipod.com

Try a few other of their domains and see what else is hosted on the same server.