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 Subject: How many websites Category: Computers Asked by: halejrb-ga List Price: \$4.00 Posted: 05 Mar 2003 16:40 PST Expires: 04 Apr 2003 16:40 PST Question ID: 172378
 ```On average, how many web sites exist on the www? How many new ones are created each day and how many disappear forever on an average day? Note, I'm interested in the number of site, not the number of pages.```
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 Subject: Re: How many websites From: tisme-ga on 05 Mar 2003 18:28 PST
 ```This is not an answer, just some info that I came up with during my research Number of websites on the internet: 550,000,000,000 (Reuters) Number of Websites found by Google: 1,346,966,000 Source: http://www.fotf.ca/if/04-05.01/articles/gofigure.html December 2001 - 36,276,252 December 2000 - 25,675,581 December 1999 - 9,560,866 December 1998 - 3,689,227 December 1997 - 1,681,868 December 1996 - 603,367 August 1995 - 18,957 Sourch: http://news.bbc.co.uk/1/hi/sci/tech/1738496.stm A I found this and other information provided on the page fascinating so am including it for other people who might be interested interested: A source from Berkeley says that: "At 7.3 million new pages added every day, the rate of growth is [taking an average estimate] 0.1 terabytes of new information [HTML-included] per day." Source: http://www.sims.berkeley.edu/research/projects/how-much-info/internet.html Search Strategy: "number of websites" "number of websites on the internet"```
 Subject: Re: How many websites From: read2live-ga on 06 Mar 2003 22:42 PST
 ```Hello there! Just wanted to comment on the two FOTC figures cited in tisme's comment: Reuters might have it right (though I'm inclined to think not), but Google's figure surely relates to the number of pages/ documents it indexes, not the number of sites. Just look at Google's front page! Apart from anything else, there is a huge discrepancy - between the number of sites in December 2001 (per the BBC report) and the number of sites reported by FOTC (date not given?). A huge discrepancy or a phenomenal growth in the number of sites. I am inclined to think, however, that the Reuters figure also relates to pages, not sites - the 550 : 1.3 ratio is striking, and is in accord with the Bright Planet study / white paper : The Deep Web: Surfacing Hidden Value (Michael K. Bergman) at The number of web sites? That's another matter - back to one of your original questions, halejrb. That part of the question may have been answered in an earlier Google Answer ID: 147034 at Which just leaves your questions re rate of growth and disappearance... Good luck, read2live```
 Subject: Re: How many websites From: sycophant-ga on 07 Mar 2003 03:31 PST
 ```I personally doubt you will ever get any two groups to agree on this, or find an accurate way to estimate. The issue becomes, what is a 'website' - a collection of webpages, but where do you draw the line between one and the other. Are ://www.google.com/ and http://answers.google.com/ the same website? What about http://images.google.com/ http://groups.google.com/ http://and www.google.com/ - they are all different URLs, but all the same site really, they just activate different options. Then theres things like this http://www.secret-passage.com/ and http://www.secret-passage.com/mckay/ - same author, but one has very different content, and is really a site within a site. http://www.bhphoto.com/ http://www.bhvideo.com/ http://www.bhphotovideo.com/ - One site, or three? http://www.geocities.com/ - one site, or thousands? I have yet to find a definition of 'website' that seems suitable to base a count on. Even webpage is trouble enough, when you start to consider dynamic pages and the like - is index.php or index.asp one page? Or the thousands that it can become when given the right options? Our obsession with counting things doesn't really translate well to the web unfortunately. Regards, sycophant-ga```
 Subject: Re: How many websites From: halejrb-ga on 07 Mar 2003 09:26 PST
 ```When I posed this question, I assumed that "home" pages could be counted as opposed to webpages. I assumed that all websites have a page called "default" or "index" or something that designates them as the Home page and that there is only one Home page per website. But if it's not possible to distinguish a Home page from any other web page then it's probably impossible to determine how many sites there are as opposed to how many pages there are.```
 Subject: Re: How many websites From: halejrb-ga on 07 Mar 2003 13:04 PST
 ```I read the Bright Planet paper on the Deep Web. It was very interesting. The issues in this paper relate to my own website: The Multiverse Database. (www.multiverse-db.com). My website is a database of science fiction planets. However, you can't find my entries for various planets by doing a search on Google. That's because the appropriate webpage is only generated when you run the search command for the database. To solve this problem I had to create a separate index for the database in HTML.```
 Subject: Re: How many websites From: sldreamer-ga on 09 Mar 2003 11:57 PST
 ```Hi halejrb, This is an interesting question, considering that Congress recently approved the Library of Congress's Digital Preservation Plan: http://www.loc.gov/today/pr/2003/03-022.html Library of Congress's Digital Preservation web site: http://www.digitalpreservation.gov/ndiipp/ The following information comes from a report titled "Archiving the World Wide Web," written by Peter Lyman, and available at the Digital Preservation web site here: http://www.digitalpreservation.gov/ndiipp/repor/repor_back_web.html "The Web is growing quickly, adding more than 7 million pages daily. At the same time, it is continuously disappearing. The average life span of a Web page is only 44 days, and 44 percent of the Web sites found in 1998 could not be found in 1999." That report obtains its data from this spreadsheet, which contains a lot of information that you may find useful: http://www.sims.berkeley.edu/research/projects/how-much-info/internet/rawdata.xls I hope this helps. Search strategy: keywords: library of congress digital preservation Google results: ://www.google.com/search?sourceid=navclient&q=library+of+congress+digital+preservation Regards, sldreamer```