On 31/03/2022 23:15, Bill Woodcock wrote:
…in a run-of-the-mill web hoster?
This is really a question specifically for folks with web-site-hosting
businesses.
If you had, say, ten million web site customers, each with their own unique
domain name, how many IPv4 addresses would you think was a reasonable number to
host those on? HTTP name-based virtual-hosting means that you could,
hypothetically, pile all ten million into a single IP address. At the other
end of the spectrum, you could chew up ten million IPv4 addresses, giving a
unique one to each customer. Presumably the actual practice lies somewhere
in-between. But what ratio do people in that business think is reasonable?
10:1? 100:1? 1,000:1?
Not exactly in the web hosting side of the business but I do run a
website to IP survey for the gTLDs, the new gTLDs and some ccTLDs each
month that covers approximately 248.3 million domain names.
It is a complex question because the use of IP addresses for websites
has been changing. Some of the IPs with large numbers of websites are
actually registrar/hoster holding page websites, sales or Pay Per Click
parking, DDoS protection, redirectors or load balancers. There is also
the dedicated versus shared hosting issue which sees large numbers of
websites on shared hosting and fewer on dedicated hosting with single
IPs. Virtual hosting also complicates things because it is not unusal to
see multiple domain names in different TLDs (eg: .COM and .ccTLD)
pointing to the same IP.
There were 12,300,576 distinct IP addresses (IPv4) in the March 2022
survey. That also included a small number of private IPs, bogons and
non-routed IPs.
These are the counts for the top 20 IPs.
34.102.136.180 26308511
3.33.152.147 8897990
15.197.142.173 8896940
34.117.168.233 5920870
198.185.159.144 3614480
198.185.159.145 3601589
198.49.23.144 3600433
198.49.23.145 3600334
198.54.117.212 3143453
198.54.117.215 3143451
198.54.117.218 3143448
198.54.117.211 3143447
198.54.117.216 3143446
198.54.117.210 3143445
198.54.117.217 3143444
34.98.99.30 2929772
188.114.97.7 2708015
188.114.96.7 2708013
23.227.38.74 2535730
35.186.238.101 2152424
Some of those are load balancers/redirectors/holding/sales/PPC/DDoS
protection IPs.
The number of IPs with a single website was 6,943,207. The average
number of sites per IP was 24.3414. The limitations are that despite the
large number of domain names in the survey, it is not a complete survey
of all TLDs (some ccTLDs are not covered). Even though websites may have
IPs, that does not necessarily mean that there is an webserver running
on the IP. (That's getting into Web Usage measurement which determines
how websites are being used or not used.)
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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