10 years anniversary of the Netarchive (Netarkivet), the Danish national web archive

The Royal Library in Copenhagen and the State and University Library in Aarhus are happy to announce the 10 years anniversary of the Netarchive (Netarkivet), the Danish national web archive.


In July 2005, a new legal deposit law came into force: materials “published in electronic communication networks” became part of the legal deposit, that is to say, collecting and preserving “the Danish part of the Internet” now was issued by law. In the same year, the Netarchive joined the IIPC.

In the early years of the Netarchive, we focused on collection building and strategies: how to manage 4 broad crawls a year and choosing about 100 sites to be harvested selectively.  At the end of 2005, we finished our first broad crawl – it took almost a year. In 2007, our first systematic set of selective crawls was in place, we had a first dialogue with Facebook about harvesting Danish open profiles, we released NetarchiveSuite as an open source web curator tool and we gave access to the archived material to the first researchers.

In 2008, we started harvesting e-books, and the French National Library  and the Austrian National Library joined the NetarchiveSuite development project. In 2009, the first Ph.D. student graduated with a project based on the Netarchive. In 2010, we participated in the first IIPC collaborative collection (Winter Olympic Games). In 2011, we established access through the Wayback Machine and started a special collection on online games.

In 2012, we fulfilled our objective of carrying out four broad crawls a year and began with a special collection on YouTube videos. In 2013, we established access on the premises for eligible master students in their final year and we developed a solution, which makes selected electronic publications from ministries and official agencies accessible to the public via persistent links from The Administrative Library’s catalogue. In 2014, we started indexing for full text search in the whole archive and performed our largest event harvest ever of the European Song Contest, hosted in Denmark.

Erland Kolding Nielsen (director of the Royal Library), cutting the ribbon to the full text search
Erland Kolding Nielsen (director of the Royal Library), cutting the ribbon to the full text search

The birthday gift to our users and to ourselves is the full text searchable archive!

Netarkivet har fejret 10 års fødselsdag

Thank you for cooperation and feedback during all these years.

On behalf of the Netarchive Team


Facing the Challenge of Web Archives Preservation Collaboratively

Web archiving is often about collecting the web, but that is only half the story. Once collected you have to make sure to preserve it.D-Lib-blocks This is what the Preservation Working Group of the IIPC is focused on. D-Lib magazine has recently published an article called Facing the Challenge of Web Archives Preservation Collaboratively: The Role and Work of the IIPC Preservation Working Group.


The article was written by the group members: Andrea Goethals (Harvard Library), Clément Oury (International ISSN Centre), David Pearson (National Library of Australia), Barbara Sierman (KB National Library of the Netherlands) and Tobias Steinke (Deutsche Nationalbibliothek – German National Library).

The article sets out the goals, activities and results of the Preservation Working Group, describing the findings of a survey that was done amongst the members of the IIPC in 2013 about their approaches to preserving the web. The authors also feature a set of databases maintained by the group with crucial information for web archiving: namely the Environments Database and the Risks Database.

Barbara Sierman, x-post from the KB (Dutch National Library) blog