The IPv6 DNS Names Dataset

The IPv6 DNS Names dataset provides fully-qualified domain names for IPv6 addresses seen in the traces of the IPv6 Topology Dataset.

| Data Sources: Passive Active Other External |

The IPv6 DNS Names Dataset

DNS names are useful for obtaining additional information about routers and hosts making up the Internet topology. For example, DNS names of routers often encode the link type (backbone vs. access), link capacity, Point of Presence (PoP), and geographic location. We have IPv6 DNS Names data starting June 2014.

These datasets result from CAIDA's large-scale traceroute-based measurements running on the Archipelago (Ark) measurement infrastructure (also see CAIDA's Macroscopic Topology Project).

We perform these DNS lookups centrally at CAIDA using a custom-built bulk DNS lookup service. This service performs millions of DNS lookups per day. In general, we perform DNS lookups soon after we collect the topology traces so that the results better match the state of the Internet at trace collection time. However, to avoid undue load on remote DNS nameservers and to keep the daily lookup volume at a manageable level, we never perform a lookup for an address if we have successfully obtained a result in the preceding 36 hours. Apart from this 36-hour rule, we always perform a lookup whenever we encounter an IP address in traces. This means that we do repeat lookups at 36-hour granularity for addresses that repeatedly occur in the traces.

Data availability

These data are available as a public dataset.

Acceptable Use Agreement

Access to these data is subject to the terms of the following CAIDA Acceptable Use Agreement (printable version in PDF format)
CAIDA ACCEPTABLE USE AGREEMENT for PUBLICLY ACCESSIBLE DATASETS The following terms comprise the Acceptable Use Policy and Data License Agreement for all publicly accessible datasets (the "Public Agreement") made available by the Center for Applied Internet Data Analysis (CAIDA), a research unit at the University of California San Diego (UCSD) and governed by The Regents of the University of California. LICENSE CAIDA's authorization to access the data grants You a limited, non-exclusive, non-transferable, non-assignable, and terminable license to copy, modify, and use the data in accordance with this Public Agreement. No license is granted for any other purpose and there are no implied licenses in this Agreement. Nothing in this License is intended to limit any rights You may have arising from fair use or due to other limitations on CAIDA's exclusive rights under copyright law or other applicable laws. CAIDA has the authority and reserves the right, in its sole discretion, to discontinue further access and use to anyone who violates this AUA. If You create a publication (including web pages, papers published by a third party, and publicly available presentations) using data from this dataset, You should cite the data as follows: The CAIDA UCSD [DataSet Name] - [dates used], https://www.caida.org/data/[dataset-URL] We encourage You to provide CAIDA with a copy of (or a link to) the publication. We use this information in reports to our funding agencies. DISCLAIMER OF WARRANTIES. CAIDA USES ITS BEST EFFORTS TO PROVIDE DATA IN ACCORDANCE WITH ETHICAL PRINCIPLES AND SCIENTIFIC INTEGRITY. HOWEVER, THE DATA PROVIDED HEREIN IS ON AN "AS IS" BASIS. NEITHER CAIDA, ITS RESEARCHERS, RESEARCH PARTNERS, LICENSORS, AND DATA PROVIDERS, NOR THE UNIVERSITY OF CALIFORNIA AND ITS TRUSTEES, OFFICERS, EMPLOYEES, AND AGENTS MAKE ANYWARRANTY, EITHER IMPLIED OR EXPRESS, OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, INCLUDING, BUT NOT LIMITED TO, THE ACCURACY, TIMELINESS, COMPLETENESS, RELIABILITY, OR AVAILABILITY OF CAIDA DATA, APPLICATIONS, OR SERVICES ACCESSIBLE THROUGH OR MADE AVAILABLE BY CAIDA. LIMITATION OF LIABILITY. TO THE EXTENT ALLOWED BY LAW, IN NO EVENT SHALL CAIDA AND THE UNIVERSITY OF CALIFORNIA BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY INDIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL OR PUNITIVE DAMAGES, ARISING FROM YOUR USE OF THE DATA. If You have any questions about the data or about this Public Agreement, please email data-info@caida.org.

When referencing this data (as required by the AUA), please use:
The CAIDA UCSD IPv6 DNS Names Dataset - <dates used>,
https://www.caida.org/data/active/ipv6_dnsnames_dataset.xml.
Also, please, report your publication to CAIDA.

Request Data Access

Access the publicly available CAIDA IPv6 DNS Names (and other topology data)

Topology Datasets

Freely Available Datasets

The Ark IPv4 Routed /24 Topology Dataset (data older than one year only)

The Ark IPv4 Routed /24 DNS Names Dataset (data older than one year only)

IPv4 TNT MPLS Topology Dataset (data older than one year only)

Ark Internet Topology Data Kits (ITDK) (data older than one year only)

The Ark IPv6 Topology Dataset

The Ark IPv6 DNS Names Dataset

The IPv6 Routed /48 Topology Dataset

IPv4 Routed /24 AS Links (September 2007 - ongoing)

IPv6 AS Links (December 2008 - ongoing)

AS Rank

AS Relationships

Skitter Macroscopic Topology Data

Skitter Internet Topology Data Kits (ITDK) - April 2002 and April/May 2003

Skitter AS Links (January 2000 - February 2008)

Skitter Router Adjacencies

AS Taxonomy

PAM 2010 "Improving AS Annotations" Supplement

Restricted Access Datasets

The Ark IPv4 Routed /24 Topology Dataset (incl. most recent one year)

The Ark IPv4 Routed /24 DNS Names Dataset (incl. most recent one year)

IPv4 TNT MPLS Topology Dataset (incl. most recent one year)

The Ark IPv4 Prefix-Probing Dataset (incl. most recent one year)

Ark Internet Topology Data Kits (ITDK) (incl. most recent one year)

Complete Routed-Space DNS Lookups

References

For more information on CAIDA topology measurements, see:

Internet Topology Data Comparison

The Archipelago Project (Ark)

Macroscopic Topology Measurements

For more information on topology measurements in general see:

University of Oregon Route Views Project

Paris traceroute