- Real-Time Internet Measurement
- Internet / Web Demographics
- Size and Scope of the Internet
- Internet Domain Survey, conducted
by Network Wizards and sponsored
by the Internet Software Consortium.
The latest survey in July 2001 showed an estimated 125.9 million
hosts on the Internet. Breakdowns by country domains is available.
Historical data from pervious surveys is also available (see Lotter's
- Internet Trends by
Tony Rutkowski, Center for Next Generation Internet. Provides useful
summary analysis of Internet host growth.
Internet Domain Hostcount statistics, generated by RIPE.
European Internet Domain Hostcount statistics going back to
December 1990. Generated by RIPE
- The Netcraft Web Server
Survey. Netcraft collect and collate as many Internet hostnames
providing an http service as they can find, and systematically poll
each one with an http request for the server name. In the May 1997
survey they received responses from 1,044,163 sites, rising to 11,161,854
sites by February 2000 and up to 36,689,008 in January 2002.
Measuring the Web with Lycos, by Michael L. Mauldin, Lycos Inc
- Internet Statistics
: Growth and Usage of the Web and the Internet, by Matthew Gray,
- Global Internet Statistics
by Language, produced by Euro-Marketing Associates (EMA). Estimates
of people with access to the Internet by native spoken language.
How Many Online?. A listing of the best estimates of the number
of people online by region and country. Compiled by Nua Internet
- Internet statistics for Latin
America and the Caribbean region ("Nodos y Servidores WWW de
America Latina y el Caribe") by the Universidad de Costa Rica.
- NetSizer - Internet Growth
Forecasting Tool. Developed by Christian Huitema and Sam Weerahandi
- Global domain registration
statistics by NetNames Ltd.
50 Most Wired Cities and Towns, a report in Yahoo! Internet
Life magazine, April 2001.
Communications Outlook 2001, provides a valuable compendium
of statistics on public telecommunication and network infrastructure
and services in the OECD countries. (Details on the 1999
Topology and Connectivity in the Americas, a report by Eric
Arnum, Technical Conference for the Implementation of IABIN, 15-18th
April 1999, Brasília. (Background information is here.)
Internet Access Price Comparison. A useful survey of the differences
in cost of accessing the Internet in OCED countries.
on Networking in Latin America, provided by TILAN (Trends in
Latin American Networking), LANIC, University of Texas at Austin.
- Statistics on the global geography
of Com/Org/Net/Edu domains names by Matthew Zook, University
of California, Berkeley.
- Internet Surveys by
D.J. Bernstein. Large scale surveys of host many hosts are visible
on the Internet, and which Internet email server software is being
Growth Trends, by Larry Roberts, IEEE Computer - Internet Watch,
20 local markets in the USA in terms of Internet penetration and
usage. Based on research by Nielsen//Netrating, 12th April 2000.
- Zook, M., 2000, "Internet
Metrics: Using Host and Domain Counts to Map the Internet",
Telecommunications Policy, Volume 24, No. 6/7, July/August
- Foley P., 2000, "Whose
Net? Characteristics of Internet users in the UK", report
for the Policy Action Team 15 on ICTs and Social Exclusion, February
- Hinner K., 2000, "Statistics
of Major IRC Networks: Methods and Summary of User Count",
M/C: A Journal of Media and Culture, Issue 4, August 2000.
cyberspace: Internet trends in 2000, by the International Telecommunications
Geography 2002, a comprehensive report on global Internet infrastructure.
Published TeleGeography, September 2001.
Internet IP Traffic Growth, a powerpoint presentation by Lawrence
Roberts, Caspian Networks Inc., August 2001.
Infrastructure Indicators, 1990-2010, provides a useful assemblage
of national-level statistics on telecommunications and Internet
for many countries, with projections into the future to 2010. Part
of the World Bank's infoDev project.
Development of Broadband Access in OECD Countries, a report
by the Organisation for Economic Cooperation and Development, October
- The Size of the Web and search engines
Engine Sizes, by by Danny Sullivan at Search Engine Watch.
Search Engine Coverage and Overlap, by Krishna Bharat, Andrei
Broder, and colleagues at Digital Systems Research Center.
the Size of the Internet Databases, an article by Greg R. Notess,
Database, Vol. 20, No 5, pages 69-72, Oct-Nov 1997.
big is the Web?, How much of the Web do the search engines index?
How up to date are the search engines? by Steve Lawrence and C.
Lee Giles, NEC Research Institute.
Web Watch: a register of statistical data, edited by Dr T.Matthew
Ciolek, Research School of Pacific and Asian Studies, Australian
National University, Canberra, Australia. See also his paper, "Networked
information flows in Asia: the research uses of the Altavista search
engine and 'weblinksurvey' software", July 2001.
- The Web Characterization
project of W3C. The main aim being to "... provide information for
the Web community how the Web is currently being used and anticipated
use in the near future."
- Lawrence S. & Giles C.L., 1999, "Accessibility of information
on the web", Nature, Vol. 400, 8th July 1999.
- How wide is the web? Well, apparently 19 clicks according research
by Reka Albert, Hawoong Jeong, and Albert-Laszlo Barabasi at department
of Physics, University of Notre Dame, USA. See their paper, "Diameter
of the World-Wide Web", Nature, Vol. 401, 9th September
1999, pages 107-109 [pdf format].
- Web Characterization Project
of the Online Computer Library Center (OCLC). Their aim being to
"... describes the structure, size, usage, and content of the Web.
It is also concerned with developing data collection methodologies
and metrics for Web description".
- The Web passes 1 billion publicly indexable pages in January 20000
according to research by Inktomi and the NEC Research Institute.
See the Inktomi WebMap
and the press
release for more details.
- The Search Engine
Showdown by Greg R. Notess, provides a user's guide to searching
the Internet with useful statistical information on the size, overlap,
unique hits, change over time, and dead links of the largest Web
- The 'Bow
Tie' map of the Web by researchers at IBM Research Almaden,
Compaq Corporate Research Laboratories and AltaVista, May 2000.
See their paper for full details,
- Broder, A., et al., 2000, "Graph
Structure in the web", paper presented at the the Ninth
International World-Wide Web Conference, 15-19th May 2000, Amsterdam.
Deep Web: Surfacing Hidden Value", a useful white paper
by BrightPlanet.com, July 2000, on the real size of the Web when
you count hidden information resources in database driven websites.
- How Much
Information? a useful report, from November 2000, looking at
the worldwide production of information, including the Internet
and the Web. The lead researchers were Peter Lyman and Hal R.
Varian, School of Information Management and Systems at the University
of California at Berkeley.
- Levene, M. & Poulovassilis, A., 2001, "Web
Dynamics", Software Focus, February 2001. (pdf format)
- Barabási, A-L., 2001, "The
physics of the Web", PhysicsWorld, July 2001, Vol. 14,
- The Google
Zeitgeist provides some interesting summary stats on top queries
at the Google search engine.
- Measuring the Most Popular Web Sites
- Internet Traffic
- Pitkow J. 1997, "
In Search of Reliable Usage Data on the WWW", at The Sixth International
World-Wide Web Conference, 7-11th April 1997, California, USA.
- Claffy K. & Monk T. 1997,
"Internet Data Acquisition and Analysis: Status and Next Steps",
INET'97 Conference, 24-27th June 1997, Kuala Lumpur, Malaysia.
- Pitkow J.E., 1998, "Summary
of WWW Characterizations", paper presented at The Seventh
International World-Wide Web Conference, 14-18th April 1998,
- Coffman K.G. & Odlyzko A., 1998, "The
Size and Growth Rate of the Internet", First Monday,
5th October 1998, Vol. 3, No. 10.
- Paltridge S., 1998, "Internet
Infrastructure Indicators", report by the Directorate for Science,
Technology and Industry, Organisation for Economic Co-operation
and Develop (OECD).
- Kirkwood H.P., 1999, "Internet
Surveys, Statistics and Geography", ONLINE, September
Technology Outlook 2000, a report from OCED. Provides comprehensive
and up to date statistics and analysis of ICTs, e-commerce and the
Information Economy. March 2000.
and Spokes: An TeleGeography Internet Reader, provides a valuable
guide to the geography of global Internet infrastructure. April
- Odlyzko A., 1999, "The
Current State and Likely Evolution of the Internet". Proceedings
of Globecom'99, IEEE, pp. 1869-1875.
Bandwidth 2000, a report by TeleGeography. Provide most comprehensive
guide to global bandwidth supply and demand. April 2000.
- Minges, M., 2000, "Counting
the Net: Internet Access Indicators", paper presented at
the INET 2000 Conference, 18-21th July 2000, Yokohama, Japan.
- Coffman, K.G. & Odlyzko, A.M., 2000, "Internet
growth: Is there a "Moore's Law" for data traffic?", unpublished
preliminary version, July 2000, AT&T Labs.
- Murray M. & Claffy K.C., 2001, "Measuring
the Immeasurable: Global Internet Measurement Infrastructure",
paper presented at the Passive and Active Measurements (PAM)
workshop, 23-24 April 2001, Amsterdam.
- Cockburn A. & McKenzie, B., 2001, "What
Do Web Users Do? An Empirical Analysis of Web Use", International
Journal of Human-Computer Studies, Vol. 54, no. 6, page 903-922.
Analysis of Global Internet Measurements Workshop, 10-14th September
2001, Leiden, Netherlands.
- Other Good Meta-Lists on Internet Stats
An Atlas of Cyberspaces