We start with the figure we published for each old domain survey (on the distribution by domain name charts), in the column named "Percent Domains Missed". If for example it says "20%" domains missed, this means we got 80% of the domains, or 0.80. We then take the total host count and divide it by this number. For example if the hostcount was 800 and we missed 20% of the domains, we would divide 800 by 0.80 to arrive at an adjusted host count of 1000.
Can I have permission to reproduce your data or charts?
You have permission to reproduce our data provided that you mention the source as "Source: Network Wizards (www.nw.com)". However you must ask our permission to publish derivate works based on our data. In those cases you must say your data or charts are "Based on data from Network Wizards (www.nw.com)"
Is the raw data available?
The raw data and other analysis is available from Matrix Information and Directory Services.. Send email to sales@mids.org for more info.
What is a host?
A host used to be a single machine on the net. However, the definitions of a host has changed in recent years due to virtual hosting, where a single machine acts like multiple systems (and has multiple domain names and IP addresses). Ideally, a virtual host will act and look exactly like a regular host, so we count them equally.
What is the relation between a host and a network number?
There is not necessarily any correlation between a network number and a domain name. A single network number could span many countries, and a single domain may have hosts on multiple network numbers.
How do I figure out the breakdown of hosts per country from your data?
You can't. There is not necessarily any correlation between a host's domain name and where it is actually located. A host with a .NL domain name could easily be located in the U.S. or any other country. In addition, hosts under domains EDU/ORG/NET/COM/INT could be located anywhere. There is no way to determine where a host is without asking its administrator.
How many people use the Internet?
There is no way to determine how many users are on the net, besides making guesses and estimates. Our list of related documents includes pointers to other companies that do surveys to estimate the number of users on the Internet.
How big is the Internet?
We consider the numbers presented in the domain survey to be fairly good estimates of the minimum size of the Internet. We can not tell if there are hosts or domains we could not locate.
In summary, it is not possible to determine the exact size of the Internet, where hosts are located, or how many users there are.
Do you have a mailing list for survey annoucements?
No, we don't. The survey is currently done in late January and July and usually published the first week of the following month.