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IP-addresses of search engines

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I use my own website as a test platform for everything around the Internet. Also I protocol every access to my web pages and try to track the behaviour of search engines.

To differentiate real visits by humans and the visits by robots of search engines I am trying to sort out my protocols. To make this easier I maintain a list of all search engines I identified visiting my website. As this list is saved in my MySQL database it is no extra work to publish it here.

Robot Subnet / URL Record last updated SQL String
Adobe sjfw1.adobe.com October 13, 2004 = "sjfw1.adobe.com"
Alexa 209.237.224.0/19 November 11, 2004 LIKE "209.237.2%"
Alexa public.alexa.com October 1, 2004 LIKE "%public.alexa.com"
Allesklar scooter.allesklar.de August 27, 2004 = "scooter.allesklar.de"
Almaden wfp2.almaden.ibm.com October 1, 2004 = "wfp2.almaden.ibm.com"
Ask Jeeves %.ask.com March 11, 2005 LIKE "%.ask.com"
Convera 63.241.61.8 January 7, 2005 = "63.241.61.8"
Convera 63.241.61.8 January 18, 2005 = "63.241.61.8"
Cosmix %.cosmixcorp.com December 29, 2005 LIKE "%.cosmixcorp.com"
Cuill %.cuill.com August 7, 2007 LIKE "%.cuill.com"
Diariofotografico diariofotografico.com October 3, 2005 = "ns1.diariofotografico.com"
Dir.com crawl20.dir.com March 14, 2005 = "crawl20.dir.com"
Echo x-echo.com October 2, 2004 LIKE "%.x-echo.com"
Exabot exabot.com October 2, 2004 LIKE "%.exabot.com"
Gamekit bot1.gamekit.de October 23, 2004 = "bot1.gamekit.de"
Gigablast www.gigablast.com March 14, 2006 = "www.gigablast.com"
GlobalSpec 66.194.55.242 November 21, 2004 = "66.194.55.242"
Goo goo.ne.jp February 18, 2006 LIKE "%.goo.ne.jp"
Google 64.233.0.0/17 October 1, 2004 LIKE "64.233.%"
Google 64.68.64.0/19 October 1, 2004 LIKE "64.68.64.%"
Google 64.68.88.0/21 October 1, 2004 LIKE "64.68.88.%"
Google googlebot.com October 1, 2004 LIKE "%googlebot.com"
Google proxy.google.com October 1, 2004 LIKE "%proxy.google.com"
Google (Mediapartners) 66.249.0.0/19 October 1, 2004 LIKE "66.249.%"
Inacts search.inacts.com December 19, 2004 = "search.inacts.com"
Inktomi %inktomisearch.com October 1, 2004 LIKE "%inktomisearch.com"
IRL Crawler irl-crawler%.cs.tamu.edu July 20, 2006 LIKE "irl-crawler%.cs.tamu.edu"
Jeteye jeteye.com October 3, 2004 LIKE "%.jeteye.com"
KnowItAll hail.cs.washington.edu August 15, 2004 = "hail.cs.washington.edu"
Looksmart looksmart.com January 15, 2005 LIKE "%.looksmart.com"
Majestic-12 %.idi.ntnu.no August 7, 2007 LIKE "%.idi.ntnu.no"
Majestic-12 205.209.182.240 February 18, 2006 = "205.209.182.240"
metager2.de 193.164.8.43 December 29, 2005 = "193.164.8.43"
Microsoft 207.46.0.0/16 October 1, 2004 LIKE "207.46.%"
Microsoft msnbot.msn.com December 19, 2004 = "msnbot.msn.com"
Microsoft search.msn.com October 1, 2004 LIKE "%search.msn.com"
Microsoft Live %.search.live.com January 7, 2007 LIKE "%.search.live.com"
Neofonie spider.neofonie.de March 16, 2007 = "spider.neofonie.de"
Netcraft 195.92.95.61 December 30, 2004 = "195.92.95.61"
NoxtrumBot tpiol.tpiol.com August 7, 2007 = "tpiol.tpiol.com"
Overture nat-yrl.overture.com February 18, 2005 = "nat-yrl.overture.com"
Picsearch picsearch.com October 1, 2004 LIKE "%.picsearch.com"
Seekbot %.seekbot.net December 29, 2005 LIKE "%.seekbot.net"
seventwentyfour.com 209.167.50.???/?? October 1, 2004 LIKE "209.167.50.%"
Spammer 211.157.8.44 October 3, 2004 = "211.157.8.44"
Spammer 217.107.222.75 August 11, 2005 = "217.107.222.75"
Spammer 66.246.218.107 December 29, 2005 = "66.246.218.107"
Spammer 81.169.180.237 December 30, 2004 = "81.169.180.237"
Suchen.de %.suchen.de August 7, 2007 LIKE "%.suchen.de"
Teoma %.teoma.com October 1, 2004 LIKE "%.teoma.com"
Thunderstone copilot.thunderstone.com October 2, 2004 = "copilot.thunderstone.com"
Tricus 213.221.109.???/?? October 1, 2004 LIKE "213.221.109.%"
Turnitin turnitin.com October 2, 2004 LIKE "%.turnitin.com"
W3C Validator w3.org October 1, 2004 LIKE "%.w3.org"
Yahoo yahoo.com December 13, 2004 LIKE "%.yahoo.com"

To make it easier for you to use this list I also included a special version as a SQL delete string that can easily be run by MySQL.

This list is not exhaustive as I can only include all robots that visited my website. Unfortunately most search engines only update their records quite sporadic and visit only the home page and at most two or three sub-pages. Therefore it is easy to overlook some of the smaller search bots. Google and Microsoft on the other side often account for thousands of page requests per day.

Furthermore the shown SQL strings are often inaccurate as they do not map the exact subnets of the search engines. I decided to use this more simple approach to ease editing.

Further information on search engines can be found on these websites:

Haftungshinweis: Trotz sorgfältiger inhaltlicher Kontrolle übernehme ich keine Haftung für die Inhalte externer Links. Für den Inhalt der verlinkten Seiten sind ausschließlich deren Betreiber verantwortlich.
Besuchen Sie auch meine Bildergalerie unter gallery.plogmann.net.
© Stefan Plogmann, 1996-2008

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