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• Branston Community College, Lincoln, UK use DansGuardian coupled with squidGuard to filter their web access for over a hundred PCs using a PII450 running RedHat 6.2.
• Caroline Chisholm Catholic College (based in Braybrook Australia) use DansGuardian with 50 concurrent users on 300 nodes on a 4Mbps Wireless Internet Link back to Victoria's capital city. Running on a RH 6.2 Linux Box with 64mb RAM and 233Mhz Processor - Cyrix (looking at a PIII 450 soon). The server is running on an old classroom machine.
• Berlin High School, Berlin, CT USA. DansGuardian is running on a homemade/rebuilt 333KM6 with 128MB ram, 6.4 gig ide hard drive, RedHat 7.0, and a couple of 3com nics. We are using squid 2.3 stable 4 and the latest squidGuard. It serves approximately 150 clients on my side of a wireless WAN link to a T1 sitting at the Town Hall.
• Bedford Modern School, Bedford, UK use DansGuardian coupled with squidGuard running on a RedHat 6.2 linux with 192Mb RAM PII450. It filters a permanent 2Mbit connection to the Internet with about 150 clients on a 100Mbit network.
• Beebug Ltd, UK use DansGuardian coupled with squidGuard running on a RedHat 6.2 linux on all their new linux solutions.
• Ci&T Systems Ltda, Campinas, Brasil uses DansGuardian with 130 users on 256Kbps and 2Mbps links. Running on a RH 7.1 Linux box with 128 Mb of Ram and PIII 500 processor (Compaq Proliant 800).
• Idot Cafe Ltd, Ireland.
• An ISP in the US, who would prefer to be anonymous, has been evaluating DansGuardian 2 on 2 of 6 filtering proxies which are load balanced by DNS. They have up to 43 thousand users on concurrently, but the tests were done with 1300 users per filter. With no special hardware (PIII 333 dual cpu, 512Mb RAM, FreeBSD) there was plenty of spare CPU and memory.
• High Tech High, CA, USA, are using the DansGuardian filtering engine. It's currently running RedHat 7.1 with the updated glibc package, DansGuardian-1.1.5, squidGuard-1.1.4, on a PIII 750 with 512Mb of RAM. Its been seen with about 65 concurrent users.
• Bliss School District, USA, are running DansGuardian 1.1.5. It's currently running RedHat 7.1 with the updated glibc package.
• Roscomare Road School, Los Angeles California, USA. We run DG on a Dell PowerEdge 2300, Dual P2-400's, 256 megs ram, running in conjunction with AdZap to filter advertising.
• Franklinville Central School. We're a small rural K-12 school district in Western New York State. We needed to comply with Children's Internet Protection Act and this really does the job for us.
• School District #73. We are running DansGuardian 2.2.1 coupled with Squid, Apache, Sendmail, AMaViS, InoculateIT, SquirrelMail, UW-IMAP, and ProFTPd on RedHat Linux 6.2. These proxy boxes range from Pentium 166 MHz/128 MB RAM/4 GB HD/1 client up to Pentium-!!! 866 MHz/256 MB RAM/30 GB HD/200+ clients.
• Sauga, Estonia. We at Sauga use Dansguardian on a P166/128M/20G, doing firewalling/proxy/filtering for about 25 PC in several subnets, some linked with wireless. Sauga is small local authority in Pärnumaa, Estonia. Most computers are in office and 5 are in Sauga Public Computer Room - serving as public computer access kiosks, running linux (X-terminals).
• Kingswood College, Melbourne, Australia. They are running it (plus squid) on a P3-1GHz, 1GB RAM, and dual 18GB SCSI hard disks, connected to the Internet via 2Mbps ADSL. The school is Kingswood College and they are absolutely delighted with the software. Good job.
• Lancaster Royal Grammer School, Lancaster, UK.
• Gide Loyrette Nouel, France. They have 2000 users with about 15000 sites requests per day which adds up to 15Gb of traffic per day. They have one server with 1.2 GHz CPU, 512 Mb RAM, 2x38 Gb HD. The server is running squid, DansGuardian and InterScan VirusWall for Linux.
• Gem State Adventist Academy, USA.
• East Central Georgia Regional Library, Augusta, USA.
• Denver Seminary, Denver, CO, USA. They use DansGuardian 2.2.10 on campus and can't wait for a stable (non-beta) version of 2.4.
• This particular one was too good to trim so I decided to reproduce it in whole (updated Wed 12th March 2003):

  Hello,
  	About 4 months ago we were using I-Gear for our Internet content
  filtering.  It was problematic and one day while Symantec's licensing
  server was down, I set out to find an alternative.  Since that very day we
  have been running DansGuardian (I installed RedHat and had it running on a
  box in about an hour).  We would like to be featured on your website, as
  we are very satisfied with DansGuardian.  Here are the specs of our
  DansGuardian Server:
  
  Servicing approximately 5000 client computers for Isle of Wight County
  Virginia
  
  Dell PowerEdge 2550 Server running RedHat 7.3 1Ghz Intel with DG 2.4.
  
  This system is definitely overkill for our size, it was originally
  purchased for the I-Gear system.  My test system of a Celeron 333 with
  128mb of RAM running DansGuardian outperformed I-Gear on our older 2Gb RAM Sun Enterprise 220 R with RedHat 6.2! 
  We have not had any problems.
  
  The system services Isle of Wight County Schools and County Administration:
  http://www.iwcs.k12.va.us/  - The Schools
  http://www.co.isle-of-wight.va.us/  -  The County
  
  Thanks for such a great product, keep up the good work.
  
  Michael Liles
  Linux / Network Tech
  Isle of Wight County Schools
  USA

• Rainford High Technology College. They are running DansGuardian 2.4.4 on a Compaq Proliant 50000 with 4 Pentuim Pro 200 512k cache 500Mb RAM and 5 4.2Gb HD on a Compaq 3200 raid controller configured for RAID 5 with hot spare. The server OS is FreeBSD 4.5. They have over 350 PCs in use.
• Shrewsbury School, UK. They just installed DansGuardian 2.4.6 on a 512Mb Athlon running RedHat 7.3, in conjunction with squidguard, filtering for around 800 users roughly 600 station network. They said "We've used Squid for ages. I'm really surprised at the lack of impact the content filtering has had on the retrieve time from the user's point of view. It's dead easy to install (I did it from source, having found that the RPM didn't work, for some reason), works out of the box with very little tinkering with the setup.
  It's superb!"
  Mark Twells Shrewsbury School, UK
• The Gartree Community School, Lincs, UK. They use DansGuardian on Mandrake 9 on an AMD 950 Duron, 256Mb RAM, 20Gb HD.
• I.E.S. Alminares, public High School in Andalusia, South of Spain. They use DansGuardian on a Linux 2.2 box. They find it very useful.
• Harvest Consultoria, BR. Harvest is a brazilian consulting company, based on São Paulo (SP). "We use Dansguardian for control and block user access to sites that can compromise our network environment, consume intensive bandwidth and limit banners/advertisement content.
  We also integrated into our needs web based monitoring and configuration tools, providing a friendly interface for its administration services. We also provide support and deployment services for brazilian companies that intend to control and monitor their user acess."
• Freyberg High School, NZ. "We have been trialing DG on Redhat 6.2 for 1 year on our Student domain to see how it stacked up against the extremely expensive Windows-based solutions. Server was a P2-350 with 512Mb ram, and up to 300 concurrent users. I have been extremely impressed, and we've just about to release a replacement server running latest DG with Redhat 9 (using authentication against Active Directory) on a P3-500Mhz. Filtering is a must in our High School (Year 9 - 13, approx ages are 13-18 years old) and at the moment we are extremely impressed by DG." - Darren Joyce, IT Administrator / Technician
• Great British Holiday Parks.
• Belper School, Belper, Derbyshire, UK. "DansGuardian 2.8.0.4 on FreeBSD 5-STABLE with Squid 2.5.STABLE-10 and NTLM/winbind authentication. All running on a Pentium 4 2.4Ghz with 2Gb RAM, 2x 40gb IDE drives. Connected to a (strugling) 2Mb HDSL connection serving around 500 machines." - Matt Peacock
• The community center LUX at Ratigen, Germany. "Dansguardian 2.8.0.6 for an open internet cafe on an AMD AthlonXP 2600+, 1,5 GB RAM with simple PATA harddisks, running on FreeBSD 6.0 and Squid 2.5STABLE12. Twelve concurrent teenage users haven't seen any porn page for a year now (at least here) and produce a maximum system load of 2%. The parents are happy, the staff is happy, the administrator is a famous man and the users don't complain, they help to optimize the filters, because the information on the "forbidden" page makes them curious. Great piece of software. The implementation was so simple.
  The only problem is to distinguish between porn pages and quoted hiphop lyrics. An automatic incremental update for the standard filter lists without changing any locally defined ones would be nice. Thank you, quote me!" - Sebastian Bredt
• Division Informatique, Rectorat de Rouen, Normandy, France use DansGuardian in order to filter access for 250 secondary schools (teen between 11 and 18). We have about 20 000 PC, 100 GBytes of web traffic each day, and 10 000 000 hits.
  DansGuardian is setup on two Redhat AS3, server got 4GB of ram, biXeon 2.8 Ghz.
  Load everage is about 5 all they day (seem very high but navigation is really fast). We've planed to setup a third server this year. We filter on just meta tag and title for real time filtering (for performance reason), we use also this free blacklist ftp://ftp.univ-tlse1.fr/pub/reseau/cache/squidguard_contrib/ and we use ClamAV as anti-virus.
  We use a 2.8 version (with many patchs included) and planed to switch to 2.9 as soon as possible. - Cedric Foll
• "We are now happily using DansGuardian at Saint Mark Coptic Orthodox and Little Flock Christian School, you can see the full details here:
  http://www.anchorite.org/blog/2006/07/21/dansguardian-and-spamassassin/
  Thanks and God Bless, Andrew"
• Prefeitura Municipal de Frederico Westphalen, RS, Brasil (Frederico Westphalen City Hall, RS, Brazil) - "We use DansGuardian 2.8.0.6 on 512Kbps links. Running on a Slackware 10.0 Linux box with 256 Mb of Ram and AMD Duron 1200 processor doing firewalling/proxy/filtering for 50 users.
  Prefeitura Municipal de Frederico Westphalen"
• Jereme Hancock is the developer of Ubuntu Christian Edition (CE). "It comes with DansGuardian pre-installed and pre-configured with a GUI interface. I have gotten lots of positive feedback from users who really like DansGuardian. Thanks for such a wonderful product! God Bless, Jereme".
• Solcon (www.solcon.net) is a Dutch ISP with more than 26.000 filtered users. They are transparent load balanced over 10, Dual Xeon 3.8 Ghz / 1Gb RAM, servers running Debian GNU Linux 3.1 (Sarge) with Dansguardian 2.8.0.6 stable - Henry Langendoen, Solcon
• Colégio Marista de Londrina (High School Marista from Londrina,Paraná,Brazil) - We use two servers with Dansguardian, one server for administrative workers and the other server for students adding 200 users on 2Mbps Link. We use Dansguardian 2.8 running on Conectiva 10 since 2005.

If you use it and want to be featured here, send Daniel an email with your url and any details you care to give. There are many more sites all over the world including commercial organisations. However they [the users] are slow to come forward.