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Heidi Ullrich

VP, Policy Development & At-Large Relations

United States

Forum Profile


Dr. Heidi Ullrich is VP, Policy Development and At-Large Relations and Team Leader of the staff that provide the policy advice development support for the At-Large Advisory Committee (ALAC) and the At-Large community which represent the views of Individual Internet Users engaged in ICANN. She joined ICANN in December 2008.

In addition to supporting the At-Large community, Heidi has worked with the ICANN Academy organizers to implement the successful Leadership Program since 2013 and the new Chairing Skills Facilitation Program.

Heidi has over 15 years of experience working with global non-governmental organizations in program management and policy coordination positions. In these positions, she helped to strengthen the participation of trade-related and consumer stakeholder groups in negotiations at the domestic, regional, and international levels.

Heidi previously served as a lecturer at the London School of Economics, where she also received her PhD, as well as the University of Southampton. Her research and teaching covered international political economy, economic diplomacy and US and EU public policy. Heidi has participated in various international research projects, including a study on civil society and accountable global governance. Heidi also served as a policy analyst with the University of Toronto's G8 Research Group between 1998 and 2005 including attending the annual G8 Summits.

She is currently working toward a Certificate in Global Management at INSEAD.

Heidi is based in Southern California.

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."