With 86 sites, Romania is the country with the most domains caught in the Danish child-porn filter.
However, the generic domains .com, .info, .biz and .net totaled 3,240 out of 3,864 domains caught by the filter in early 2008.
Computerworld Demark is in possession of the database of domains in the filter. The database is maintained by the Danish police, but enforced by 19 Danish Internet service providers on a voluntary basis.
Other countries listed in the database are the U.S. with 43 domains, Russia with 40 and the otherwise very controlled China with 23 domains. Remarkably, the small nation of Tonga has 85 domains on the list. In Europe, Belgium, Germany, Portugal, Austria and Slovakia all have three or more domains in the filter.
CEO Ulf Munkedal of the Danish security company FortConsult explains that the list probably is a reflection of where pedophiles can easily acquire a domain without being traced.
"Some countries barely require a Hotmail address or the like to buy a domain," he says.
Safety on different servers can also play a role.
"Sometimes they can take over a server and a domain," he says. Munkedal, however, believes that in particular the large number of domains from Romania may indicate that the authorities in that country may not always react too quickly to tips on child pornography. He is also surprised that so many Chinese domains are being blocked by the filter.
Danish domains investigated
For technical reasons, Denmark also has a domain in the database, www.stop.politi.dk. However, it is a subdomain of the Danish police force domain, politi.dk.
Danish domains will not be caught in the filter as it would make the owners aware that an investigation is under way, says the Danish police's IT crime investigation unit.
In 2006, however, the Web site bizar.dk was caught in the filter, but that was an error. The case ended with the police gave the owner of the site an apology.
Foreign authorities are informed
Søren Thomassen, head of the Danish police's IT crime investigation unit, would not comment on specific investigations, but explains the principle that when Web sites from abroad land in the filter, the police in that country are directly informed.
"It is standard procedure," he says.
Danish police, however, do not follow up on what action is taken by officials abroad in response to the Danish alerts.
While generic domains are not connected to particular countries, the locations of the people behind the sites can often be determined by tracking down payment information, which reveals the location, he said.
He would not comment on whether the various sites in different countries are parts of larger networks, but explained that the sites sometimes link to each other and in that sense certainly are connected.
This is the list of countries with domains that have been caught in the Danish child-porn filter.
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