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ICANN DNS Symposium | September 2023

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The sixth Internet Corporation for Assigned Names and Numbers (ICANN) DNS Symposium (IDS 2023) was held on 5 September 2023 in Da Nang, Vietnam. IDS 2023 was co-located with "A Day of DNS Abuse Discussions" (4 September), also hosted by ICANN, and OARC 41 (6-7 September), hosted by Domain Name System Operations, Analysis, and Research Center (DNS-OARC).

"A Day of DNS Abuse Discussions" covered the pending contract amendments for ICANN-accredited registrars and registry operators and what they mean for contracted parties. There were also discussions and capacity development sessions related to DNS abuse mitigation.

The theme for IDS 2023 was "The Integration of DNS with Emerging Technologies."

IDS2023 explored the challenges and opportunities associated with the integration of the DNS in emerging technologies, including challenges related to security. The symposium invited researchers, developers, and operators to present on subjects including, but not limited to, blockchains, Internet of things, and novel uses of the DNS, such as IP-to-location translation, blocklists, and so on.

IDS 2023 Agenda

4 September: A Day of DNS Abuse Discussions

5 September: ICANN DNS Symposium

6-7 September: OARC 41


Hotel and Venue:
Meliá Danang Beach Resort
19 Trường Sa, Hoà Hải, Ngũ Hành Sơn, Đà Nẵng 550000, Vietnam
TEL: +84 236 3929 888


A Day of DNS Abuse Discussions

Opening Remarks

RAA and RA Amendments

How Are Some Registries and Registrars Planning to Meet These Obligations?

Deep Dive on Phishing

Proactive Approaches

Reducing DNS Abuse Together

ICANN DNS Symposium

Block 1

Block 2

Block 3


Bridging perspectives: Understanding the Challenges and Opportunities in Current DNS Integrations

"Alternative" TLD Traffic at the Root

Automating Synchronization of Delegation Data Between Parent and Child

Designing Secure and Stable Rules for Internationalized Domain Names

DNS-based Identifiers for Instant Messaging

Do DNS Hosters Influence the Deployment of DNSSEC?

Predicting Abusive Registrations: A Survey of Current Efforts

DNSSEC – The Journey at a Crossroads

KINDNS of Strangers

Unraveling the Changing Landscape of DDoS Attacks: The Role of DNS and IoT Botnets

The Challenge of Using DNS in Digital Credential World

Cultural Event Information: Click here for more detail

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Contact Us

Email with "ICANN DNS Symposium" in the subject line.

IDS Archive

View IDS 2022 webpage

View IDS 2021 webpage (virtual event)

View IDS 2020 webpage (canceled event)

View IDS 2019 webpage

View IDS 2018 webpage

View IDS 2017 webpage

Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."