This will eventually become a list of web sites known to require that ECN (Explicit Congestion Notification) be disabled.
You may edit the list here.

The following is current as of the indicated date:
www.ananova.com     16 March 2007   195.92.247.210
www.barclaycard.co.uk     16 March 2007   213.219.1.149
www.bokus.com     16 March 2007   231.187.205.190
www.diy.com     16 March 2007   213.174.202.134
nywebb.eskilstuna.se     16 March 2007   212.105.81.60
www.grouppoint.at     16 March 2007 193.81.89.77
leveledlive.ihigh.com     16 March 2007   64.191.144.233
www.intoto.com     16 March 2007   207.145.48.21
mitel.com     16 March 2007   216.191.234.137
www.negocios.pt     16 March 2007   212.55.136.42
www.orange.co.uk     16 March 2007   195.92.245.198
www.pcgames.de     16 March 2007   212.123.106.150
www.ride-to-arrive.org     16 March 2007   195.11.203.196
www.rahul.net     16 March 2007   192.160.13.3
www.samsclub.com     13 July 2007   161.165.194.66
www.southwest.com     14 March 2007   12.5.136.100   63.169.44.100
www.southwestair.com    14 March 2007
www.southwestairlines.com    14 March 2007
access1.sun.com     16 March 2007   192.18.97.135
www.usdoj.gov     16 March 2007   149.101.1.32
? (vid.nl)     16 March 2007   212.72.52.14
viewsonic.com     16 March 2007   63.251.212.130
? (walmart.be)     16 March 2007   193.121.189.1
www.webmobil24.com     16 March 2007   213.83.36.122

The remainder of this page was plagarized from urchin.earth.li, whose pages are no longer maintained.

Welcome to the ECN Hall of Shame. This site lists hosts, that to the extent of our knowledge, appear to be hosted at locations that break ECN implementations at the date processed.

Introductory page. Also for some technical notes, and disclaimers, see this

Data was last processed: 2005-02-13, 13:19 GMT

[home] [submit] [ascending] [fixed hosts]

HostIPPortOrganisationDate processedLast working routerNotified?
viewsonic.com63.251.212.130 80ViewSonic2005-02-13, 13:19 GMTcore-02-ge-0-2-0-0.nycl.twtelecom.netn
www.netsys.com199.201.233.88 80netsys2005-02-13, 13:15 GMTnac-nj-oc12-gw.customer.alter.netn
www.corrie.net213.208.124.31 80 2005-02-01, 18:53 GMTbester1.loud-n-clear.netn
www.captiva.com63.243.83.135 80 2005-02-01, 18:49 GMTuslec-63-243-83-135.cust.uslec.netn
www.bokus.com213.187.205.190 80Bokus AB2005-02-01, 18:46 GMTwww.bokus.comn
www.orugoldeneagles.com64.191.144.223 80 2005-02-07, 17:15 GMTsl-gw4-roa-10-0.sprintlink.netn
61.213.94.12961.213.94.129 80peercast.orgOK 16Mar2007kyonib1.asahi-net.or.jpn
www.dreamretail.com209.53.118.60 80 2005-02-02, 01:42 GMT204.174.219.146n
62.197.39.5962.197.39.59 80Loud-n-clear Limited2005-01-28, 02:03 GMTbester1.loud-n-clear.nety
www.viewsonic.com63.251.212.130 80Viewsonic2005-01-28, 01:59 GMTcore-02-ge-0-2-0-0.nycl.twtelecom.netn
forums.pgpsupport.com12.160.33.176 80 2005-01-28, 01:51 GMT172.16.5.9n
discuss.joelonsoftware.com69.90.126.37 80Joel On Software2005-01-28, 01:48 GMTOC48POS5-0.nyc-gsr-b.peer1.netn
lists.netsys.com199.201.233.253 80netsys.com2005-01-28, 01:45 GMT0.ge-0-0-0.gbr1.oct.nac.netn
stantonamarlberg.deskline.feratel.at208.50.230.201 80 2005-01-28, 01:41 GMT209.130.181.34y
195.74.152.9195.74.152.9 25MMail.co.uk2005-02-04, 00:13 GMTrouter.winwww.comn
www.orange.co.uk195.92.245.198 80Orange2005-01-28, 01:37 GMTv1.hnr-1.grl.as5388.netn
www.webmobil24.com213.83.36.122 80 2005-01-28, 01:33 GMTc8.f.de.plusline.netn
webbroker1.tdwaterhouse.com207.16.47.250 80TD Waterhouse2005-01-28, 01:32 GMTwaterhouseT3-nj.customer.ALTER.NETn
www.nextag.com216.34.29.151 80 2005-02-01, 18:32 GMT64.14.11.214n
mail.nsi-precision.de217.140.94.17 25NSI Präzisionsdrehteile GmbHOK 16 March 2007adslgw01-fra4.titan-networks.den
mail.nsi-precision.de217.140.94.17 25 2005-01-28, 01:26 GMTadslgw01-fra4.titan-networks.den
www.bokus.com213.187.205.190 80 2005-01-28, 01:22 GMTwww.bokus.comy
www.asos.com135.196.8.67 80 OK 16 March 2007135.196.89.6y
lists.netsys.com199.201.233.17 80Netsys2004-12-04, 18:51 GMT0.ge-0-0-0.gbr1.oct.nac.netn
netsys.com199.201.233.10 80Netsys2004-12-04, 18:47 GMT0.so-0-3-0.gbr1.oct.nac.netn
212.43.255.106212.43.255.106 80 2005-02-04, 00:06 GMTfe-4-0-th2-boussh.rtr.fr.clara.netn
online.inlandrevenue.gov.uk195.224.68.48 443Inland Revenue, UK2005-02-04, 00:02 GMTse1-0-llc-ptp-HE6.eds-r01-01.cust.rtr.xara.nety
www.youravon.com134.65.5.145 80Avon2005-01-28, 01:11 GMT12.125.245.238n
www.list.org206.131.226.62 80GNU Mailman2005-01-28, 01:02 GMT206.204.213.52n
www.intoto.com207.145.48.21 80Intoto 2005-02-03, 23:53 GMTip-64-139-11-66.dsl.sca.megapath.netn
www.oasis-open.org209.202.168.105 80 2005-01-28, 00:58 GMTcsr2-ve242.Waltham2bo2.savvis.netn
www.theknot.com209.73.208.73 80 2005-02-01, 18:15 GMTv4-edge1-gw1.nyc1.globix.netn
www.valentines.co.nz203.97.82.195 80Valentines Restaurant2005-01-28, 00:52 GMT218.101.61.11n
www.pcgames.de212.123.106.150 80webmaster@computec.de2005-01-28, 00:49 GMTge1-2.rtr1.nuernberg.gpf.colo1.ip-exchange.den
lambda.moo.mud.org67.101.8.74 8888 2004-11-09, 19:12 GMT192.168.23.70n
www3.twcnyc.com208.198.20.27 80Time/Warner CableOK 16 March 2007twcable-t3-gw.customer.alter.netn
bob.bankwest.com.au203.19.158.31 443BankWestOK 16 March 2007203.19.158.7n
62.167.82.6862.167.82.68 80 2004-12-19, 23:34 GMT195.141.229.86n
www.ride-to-arrive.org195.11.203.196 80Avon and somerset Police, United Kingdom16 March 2007mailgate.avonandsomerset.police.ukn
www.avonandsomerset.police.uk194.70.45.171 80Avon and somerset Police, United Kingdom2005-01-28, 00:45 GMTmailgate.avonandsomerset.police.ukn
www.ifilm.org209.10.239.166 80 2004-12-27, 05:19 GMT209.10.239.10y
www.eskilstuna.se212.105.81.60 80 2005-02-01, 17:57 GMTge-3-0-0.se-snams001-pe-1.tu.telenor.netn
www.southwest.com63.169.44.100 80Southwest Airlines2005-02-01, 17:54 GMTswairlines-8.border1.ext1.dal.pnap.netn
www.etel.sk217.118.96.210 80etel s.r.oOK 16 March 2007sk-gw.redip.etel.atn
www.etccomputers.co.nz210.55.223.161 80ETC Computers2005-01-28, 00:29 GMT222.152.127.132n
www.vid.nl212.72.52.14 80Verkeers Informatie Dienst2005-01-28, 00:27 GMTge-11-1.ipcolo1.Amsterdam1.Level3.netn
www.city-link.co.uk217.33.222.210 80City LinkOK 16 March 2007ftip002621746.mspstart1.birmingham.fixed-nte.bt.netn
www.mitel.com216.191.234.137 80Mitel Semiconductors2005-01-28, 00:20 GMTmitel.comn
www.twcnyc.com208.198.20.175 80Time/Warner Cable NYCOK 16 March 2007twcable-t3-gw.customer.alter.netn
applefn.infonow.net66.179.31.1 80infonowOK 16 March 2007216.183.125.43n
212.38.173.181212.38.173.181 80IOMART2004-12-23, 00:52 GMTsgrs-7206-iom.onetel.net.ukn
book.aua.com62.17.165.18 80 2005-01-28, 00:05 GMTgradsolu01-gw.customer.uk.uu.nety
www.corrie.net213.208.124.31 80 2005-01-28, 00:00 GMTbester1.loud-n-clear.netn
212.38.173.181212.38.173.181 80Iomart Ltd2004-12-23, 00:50 GMTsgrs-7206-iom.onetel.net.uky
www.grouppoint.at193.81.89.77 80GroupPoint2005-02-01, 17:37 GMTGROUPPOINT-NET.AT.eunet.atn
www.rahul.net192.160.13.3 80 2005-01-27, 23:50 GMT172.17.50.12n
www.diy.com213.174.202.134 80b&q company2005-01-27, 23:44 GMTATM8-802.uklond6-02.c75c.savvis.nety
www.ananova.com195.92.247.210 80Ananova Limited (ANANOVA4-DOM)2005-01-27, 23:39 GMTv1.hnr-1.grl.as5388.nety
www.itv.co.uk193.35.8.15 80ITV Network Limited2005-01-27, 23:35 GMT192.168.5.2y
www.webservertalk.com207.44.136.62 80 OK 16 March 2007ivhou-207-218-245-124.ev1.netn
www.teletech.co.nz63.150.172.182 80TeleTech Holdings, Inc2005-01-27, 23:29 GMT63.150.172.164n
www.ollie.clive.ia.us63.175.164.239 80The Ollie FamilyOK 16 March 2007shootingstar.isunet.netn
207.96.134.212207.96.134.212 80Powersource Online2004-12-23, 00:48 GMTia-piex-gw03-fe5-1-0-1109-cpe058.vtl.netn
207.139.157.212207.139.157.212 80Powersource OnlineOK 16 March 2007custname-gw.customer.alter.netn
www.fineliving.com208.62.120.247 8080OK 16 March 2007kwsn03.scripps.comn
marsicoenterprises.com63.229.252.189 25 2005-01-27, 23:17 GMT206.196.130.54n
www.mci.com198.4.4.40 80MCI2005-01-27, 23:12 GMT192.135.72.45n
central.news.com.au202.139.106.182 80News Limited2005-01-27, 23:10 GMTNewsInteractive.ia3.optus.net.aun
www.barclaycard.co.uk213.219.1.149 80Barclaycard2005-02-01, 17:25 GMTgi3-1.edge1-gw2.lhr1.globix.netn
applefn.infonow.net66.179.31.1 80 2005-01-27, 23:07 GMT216.183.125.43n
tokyotopless.com210.158.204.225 80 2005-01-27, 23:06 GMTPOS2-0-0.tok2.idc.ad.jpn
www.ocheaven.com210.209.15.233 80 2004-10-14, 06:44 BST210.209.0.201n
65.160.47.6265.160.47.62 25PowerwareOK 16 March 2007(144.232.185.146)n
www.theaustralian.com.au202.139.106.174 80The Australian (Newspaper)2005-01-27, 22:56 GMTNewsInteractive.ia3.optus.net.auy
www.southwest.com12.5.136.100 80 2005-01-27, 22:53 GMTswairlines-7.border2.ext1.dal.pnap.netn
www.brownco3.com205.181.180.10 80 2005-01-27, 22:50 GMTs0.brownco.bbnplanet.nety
www.netbank.de194.138.17.51 80Netbank2005-01-27, 22:46 GMT192.35.17.44n
mail.santabarbara.es217.126.64.172 25Santa BarbaraOK 16 March 200734.Red-80-58-36.pooles.rima-tde.netn
www.thomson.net157.254.235.97 80ThomsonOK 16 March 2007157.254.234.39y
ns.kacst.edu.sa212.26.44.3 25KACST2004-12-27, 03:10 GMTkacst.ruh-cust.isu.net.san
mail2.kpmg.co.nz203.97.182.150 25KPMG New Zealand2005-01-27, 22:36 GMTkpmg-cl109.wlg.netlink.net.nzn
mail.kpmg.co.nz203.98.7.146 25KPMG New Zealand2005-01-27, 22:34 GMTkpmg-telstraclear.akl.telstraclear.netn
ask.elibrary.com66.45.12.242 80 OK 16 March 200766.45.12.2n
smtp.sprint.ca209.5.194.28 25Sprint CanadaOK 16 March 2007v201-S1.sw98.tor1.sprint-canada.netn
www.rei.com206.81.220.22 80REIOK 16 March 200763.237.224.122n
gatekeeper2.npower.com62.189.25.19 25NPower2005-01-27, 22:30 GMT62.189.25.25n
www.spartanstores.com32.97.108.2 80Spartan Stores2005-01-27, 22:27 GMT(12.124.12.190)n
mail1.ector-county.k12.tx.us168.58.42.186 25 2005-01-27, 22:17 GMT168.58.42.2n
online.tns-global.com216.31.207.194 80TNS InteractiveOK 16 March 2007216.31.207.220n
www.usdoj.gov149.101.1.32 80US Dept. of Justice2005-01-27, 22:15 GMT63.174.161.17y
205.188.248.25205.188.248.25 80web.icq.com (round-robin DNS record)2004-10-14, 04:37 BST172.18.127.54n
165.251.40.31165.251.40.31 25Easylink Services Corporation2004-12-04, 14:48 GMT209.67.2.126n
mail.svi.de62.206.215.53 25SVI GmbH2005-01-27, 22:08 GMTat-1-0-0-76.ce-stg03.bmcag.netn
www.negocios.pt212.55.136.42 80 2005-01-27, 22:03 GMT213.13.151.10n
edina.xenologics.com.212.44.160.1 25Xenologics Networks & Communications GmbHOK 16 March 2007gb1.xnc.comn
www.walmart.be193.121.189.1 80Walmart2005-01-27, 21:52 GMT213.49.192.24n
www.domainregistry.com206.231.165.23 80 2004-10-14, 04:04 BST206.106.138.12n
www.news.com.au202.139.106.172 80 2005-01-27, 21:45 GMTNewsInteractive.ia3.optus.net.auy
www.mediabay.com209.123.160.11 80 2005-01-27, 21:42 GMT209.123.198.242n
www.hawaii.edu128.171.94.42 80 2005-01-27, 21:38 GMT128.171.64.180n
www.rsasecurity.com204.167.114.22 80 2005-01-27, 21:35 GMTs1-0.rsas2.bbnplanet.netn
access1.sun.com192.18.97.135 80SUN Microsystems2005-01-27, 21:30 GMTsun-1.border3.den.pnap.netn
mx1.morganstanley.com205.228.12.103 25ms2004-12-04, 13:52 GMT199.89.109.225n