Local elections ("autárquicas") were held in Portugal on 12 October 2025, and Arquivo.pt compiled a special collection of electoral content published on the web, resulting in 3.5 terabytes of information for research and academic work. 440 search terms were used to obtain 43,000 page addresses, along with the websites of parishes, municipalities, and political parties. […]
The interconnected nature of the World Wide Web has long fascinated researchers and technologists alike. Today, we are thrilled to announce the release of the Arquivo.pt Links dataset, a comprehensive collection that opens new possibilities for understanding and analyzing web connectivity patterns. The dataset encompasses more than 139 million webpage URLs, each accompanied by crucial […]
Arquivo.pt made special collections on the three elections that took place this year: the Parlamentary elections on 10 March, the elections in Madeira island on 26 May and the European elections on 9 June. More than 70,000 pages with content related to the elections and political life in Portugal and Europe were identified and around […]
Arquivo.pt query logs are unique resources for research Arquivo.pt provides a “Google-like” service that enables searching pages and images collected from the web since the 1990s. Notice that Arquivo.pt search complements live-web search engines because it enables temporal search over information that is no longer available online on its original websites. Analyzing user behavior is […]
Arquivo.pt preserved online documents in several languages about the 2019 European Parliamentary Elections The 2019 European Parliamentary Elections were an event of international relevance. The strategy to preserve the relevant information on the World Wide Web is delegated to national institutions. However, the preservation of web pages that document transnational events is not officially assigned. […]
Suggest web pages about Covid-19 Arquivo.pt invites everyone to suggest web pages that document the Covid-19 pandemic to be preserved for future access. Help us to keep a complete memory of the Portuguese live during this period. Suggest pages using this form: https://tinyurl.com/arquivopt-covid19 Thousands of web pages to tell the story of the pandemic in […]
This research presents a characterization of the information-seeking behaviour of the users of a Portuguese web search engine, based on the analysis of its logs. The paper A Search Log Analysis of a Portuguese Web Search Engine, by Miguel Costa and Mário J. Silva, was presented at INForum 2010 - Simpósio de Informática, in Braga, […]
An Updated Portrait of the Portuguese Web presented at EPIA 2009 The paper An Updated Portrait of the Portuguese Web, by João Miranda and Daniel Gomes, was presented at the 14th Portuguese Conference on Artificial Intelligence (EPIA 2009) in Aveiro. This paper presents a characterization of the Portuguese Web derived from a crawl performed by […]
Session at ISCTE (Lisbon) "Archive.pt as an infrastructure for research in Social Sciences and Humanities" Register! Session page Jornadas FCCN 2015 site Poster to disseminate session (in Portuguese) You missed it? No problem. Here are all the presentations: O Arquivo da web portuguesa e seu papel num futuro museu do web design português, Sandra Antunes, […]