On 11/05/2022 13:31, Masataka Ohta wrote:
As I wrote:
But some spam actors
deliberately compared zone file editions to single out additions, and
then harass the owners of newly registered domains, both by e-mail and
phone.
If that is a serious concern, stop whois.
There are various ways, such as crawling the web, to enumerate
domain names.
That is not an efficient method. The gTLD zones are available on
approval from the registries via ICANN's CZDS. Many of the ccTLDs do not
provide such access.
For example, large companies such as google can obtain enumerated
list of all the current most active domains in the world, which
can, then, be used to access whois.
What Google might obtain would be a list of domain names with websites.
The problem is that the web usage rate for TLDs varies with some ccTLDs
seeing a web usage rate of over 40% (40% of domain names having
developed websites) but some of the new gTLDs have web usage rates below
10%. Some of the ccTLDs have high web usage rates.
Hiding DNS zone information from public is beneficial to powerful
entities such as google.
In some respects, yes. But there is a problem with that because of all
the FUD about websites linking to "bad" websites that had been pushed in
the media a few years ago. That had an effect of websites no longer
linking to others. Any search engine that detected new websites by
following links was at a severe disadvantage. There are other methods of
detecting new websites but for those without Google's resources, it is a
lot more difficult without access to the zone files.
Another factor that is often missed is the renewal rate of domain names.
Some of the ccTLDs have very strong renewal rates of over 70% and the
.COM typically has a blended renewal rate of over 70%. A blended renewal
rate is the renewal rate for all registrations (first year and
multi-year). The first year renewal rates can vary considerably. Some of
the new gTLDs can see upwards of 80% of the zone deleted within a year.
The first year renewal rate varies considerably across ccTLDs and gTLDs
and from month to month. With heavily discounted new registrations, it
is not unusual to see over 90% of those discounted registations deleted
when they come up for renewal.
Access to WHOIS servers and the records that they return has changed
considerably since the infliction of GDPR in May 2018. Some gTLDs are
moving to RDAP and will throttle the number of requests by IP or limit
them to a maximum number of queries per minute. A lot of personal data
such as e-mail addresses, phone numbers and even postal addresses have
been removed from gTLD records because of the fear of GDPR. Some of the
European ccTLD registries simply don't return any personal information
for a WHOIS request. (deNIC is a good example.) Others allow registrants
to opt out of public WHOIS.
One of the largest "registrations as a service" gTLD registrars (it
helps resellers resell gTLD domain names without them having to become
ICANN accredited registrars) unilaterally decided to go dark on WHOIS
data a few years ago by removing registrant data.
The zones change. New domain names are registered and domain names are
deleted. For many TLDs, the old WHOIS model of registrant name, e-mail
and phone number no longer exists. And there are also WHOIS privacy
services which have obscured ownership.
Regards...jmcc
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John McCormac * e-mail: j...@hosterstats.com
MC2 * web: http://www.hosterstats.com/
22 Viewmount * Domain Registrations Statistics
Waterford * Domnomics - the business of domain names
Ireland * https://amzn.to/2OPtEIO
IE * Skype: hosterstats.com
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