Requests for CAIDA Online Datasets

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www.caida.org > data : about : restricted

CAIDA provides access to several categories of restricted datasets: macroscopic topology measurements (e.g. the IPv4 Routed /24 Topology Dataset, anonymized internet traces (e.g. the Anonymized Internet Traces 2013 Dataset, a DDoS Attack in 2007, the DNS root/gTLD RTT Dataset, and several datasets from the UCSD Network Telescope, including backscatter datasets (e.g. The Backscatter-2008 Dataset). For a full list see our Data Overview.

Approved Requests for CAIDA Restricted Datasets

The table below shows the number of requests for all restricted datasets combined approved by CAIDA since 2002. This typically is about 75% to 80% of the requests received. CAIDA has been tracking this information in detail since about 2008. Earlier numbers have been reconstructed from email archives and are only estimates.

Last updated on 2013-Apr-19 01:42:55 UTC

	Total	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	11	0	0	0	0	1	0	0	2	2	3	3	0
2003	75	3	5	9	3	9	8	5	6	4	9	7	7
2004	97	5	3	9	9	5	10	7	8	7	12	14	8
2005	172	11	9	19	19	14	16	10	10	9	26	19	10
2006	182	10	17	26	9	22	8	15	19	14	13	19	10
2007	189	11	15	22	19	25	14	15	14	6	16	19	13
2008	296	19	39	25	28	16	30	27	19	15	25	25	28
2009	362	12	19	33	39	19	32	45	21	42	31	42	27
2010	426	25	27	70	39	46	34	27	18	39	36	35	30
2011	478	26	55	47	45	45	41	42	34	41	27	43	32
2012	524	37	42	34	51	52	43	47	36	41	38	59	44
2013	197	51	56	65	25

Request Statistics for All Restricted Datasets

The graph below provides an overview of user interest for the main categories of restricted dataset provide by CAIDA. For each year three columns show the total number of requests received (left column) the total number of requests approved (middle column), and the number of users that actually accessed their account (right column).

Geographical Distribution of Users of Restricted Data

We use the TLD extracted from the email addresses of our users to get an overview of the type of user of CAIDA data (e.g., educational, commercial, government, etc.) and, from country-level TLDs, the geographic distribution of our users. The graph below shows the most popular TLDs over the years.

Last Modified: Wed May-1-2013 15:29:33 PDT

Page URL: http://www.caida.org/data/about/restricted/index.xml