Security and Stability Advisory Committee (SSAC) Advice

Security and Stability Advisory Committee (SSAC) Advice

This page provides information on the status of Advice to the Board from the Security and Stability Advisory Committee (SSAC).

The first table below lists the Board Advice with open parsed items; the second table lists all Board Advice received by the SSAC that has been closed to date.  For detailed information about a specific item, click on the appropriate wiki page link and you will be directed to the landing page for that Board Advice item.

Please send inquiries to the Action Request Register (ARR) Team at advice@icann.org. 

OPEN ADVICE ITEMS

Please see recent quarterly updates assigned to the SSAC on the Quarterly Updates: SSAC Board Advice wiki page.

Document Issued

Reference ID / Wiki Page Link

Document

Open Items

Closed Items

Deferred Items

CLOSED ADVICE ITEMS

Document Issued

Date Closed

Reference ID / Wiki Page Link

Document

Document Issued

Date Closed

Reference ID / Wiki Page Link

Document

Jul 15, 2021

May 28, 2026

SSAC Comments on Initial Report of the Expedited Policy Development Process (EPDP) on the Temporary Specification for gTLD Registration Data Team – PHASE 2A

Apr 10, 2026

Apr 27, 2026

SSAC Comments on Proposed Root KSK Algorithm Rollover

Sep 25, 2025 

Oct 2, 2025 

The Domain Name System Runs on Free and OpenSource Software (FOSS)

Sep 22, 2025 

Sep 26, 2025 

SSAC Comments on Functional Model for Root Server System Governance

Jul 22, 2025 

Jul 23, 2025 

SSAC Comments on Name Collision Guidelines in the Proposed Language for the Draft Next Round Applicant Guidebook

Jul 7, 2025 

Jul 10, 2025 

SSAC Comments on GNSO Domain Name Registration Data Accuracy Concept Proposal

Jun 4, 2025 

Jun 10, 2025 

SSAC Comments on Draft Governance Document for the Recognition, Maintenance, and Derecognition of RIRs

May 16, 2025 

Jun 5, 2025 

DNS Blocking Revisited

Jul 15, 2021 

May 28, 2025 

SSAC Comments on the GNSO New gTLD Subsequent Procedures Draft Final Report

May 25, 2017 

Dec 17, 2024 

SSAC Advisory on the Use of Emoji in Domain Names

Nov 3, 2015 

Dec 17, 2024 

SSAC Advisory on Registrant Protection: Best Practices for Preserving Security and Stability in the Credential Management Lifecycle 

Feb 13, 2014 

Dec 17, 2024 

SSAC Advisory on DNS "Search List" Processing

Jul 23, 2013 

Dec 17, 2024 

Active Variant TLDs

Dec 6, 2010  

Dec 17, 2024 

Report of the Security and Stability Advisory Committee on Root Scaling

Sep 18, 2020 

Dec 9, 2024 

SSAC Advisory on Private-Use TLDs

Dec 15, 2023 

Jun 3, 2024 

SSAC Report on the Evolution of Internet Name Resolution

Dec 12, 2023 

Jun 3, 2024 

SSAC Report on Urgent Requests in the gTLD Registration Data Policy

Nov 15, 2010 

May 24, 2021 

Invalid Top Level Domain Queries at the Root Level of the Domain Name System

Apr 15, 2011 

Jul 10, 2023 

SSAC Comment on the ICANN gTLD Registry Transition Processes Model

May 12, 2011 

Jul 7, 2017 

SSAC Comment on the Orphan Glue Records in the Draft Applicant Guidebook

Jun 3, 2011 

Oct 15, 2015 

SSAC Report on DNS Zone Risk Assessment and Management

Jun 14, 2011 

Oct 15, 2015 

DNS Blocking: Benefits Versus Harms - An Advisory from the Security and Stability Advisory Committee on Blocking of Top Level Domains at the Domain Name System

Sep 11, 2011 

Jul 10, 2023 

SSAC Report on WHOIS Terminology and Structure

Jan 31, 2012 

Nov 15, 2016 

SSAC Advisory on the Delegation of Single-Character Internationalized Domain Name Top-Level Domains

Feb 23, 2012 

Aug 13, 2013 

SSAC Report on Dotless Domains

Jun 11, 2012 

Nov 8, 2012 

SSAC Report on the Domain Name Registration Data Model

Sep 14, 2012 

Nov 8, 2012 

WHOIS: Blind Men And An Elephant

Oct 9, 2012 

Oct 15, 2015 

SSAC Advisory on Impacts of Content Blocking via the Domain Name System

Jan 27, 2016 

Apr 27, 2016 

Advisory on Internal Name Certificates

Mar 27, 2013 

Jul 10, 2023 

SSAC Report on Domain Name Registration Data Validation

Apr 18, 2013 

Apr 19, 2023 

Interdisciplinary Studies of Security and Stability Implications from Expanding the Root Zone

Sep 6, 2013 

Jul 10, 2023 

SSAC Comment on ICANN's Initial Report from the Expert Working Group on gTLD Directory Services

Nov 7, 2013 

May 12, 2021 

SSAC Advisory Concerning the Mitigation of Name Collision Risk

Nov 7, 2013 

May 12, 2021 

SSAC Advisory on DNSSEC Key Rollover in the Root Zone

Feb 18, 2014 

May 4, 2021 

SSAC Advisory on DDoS Attacks Leveraging DNS Infrastructure

Jun 6, 2014 

Jul 30, 2014 

SSAC Comment Concerning JAS Phase One Report on Mitigating the Risk of DNS Namespace Collisions

Aug 15, 2014 

Oct 15, 2015 

SSAC Overview and History of the IANA Functions

Oct 10, 2014 

Oct 15, 2015 

SSAC Report on the IANA Functions Contract

Dec 10, 2014 

Aug 9, 2016 

SSAC Advisory on Maintaining the Security and Stability of the IANA Functions Through the Stewardship Transition

May 28, 2015 

May 24, 2021 

Advisory on the Use of Static TLD / Suffix Lists

Jun 8, 2015 

Mar 10, 2016 

SSAC Comments on Cross Community Working Group Proposal on ICANN Accountability Enhancements

Jun 24, 2015 

Feb 24, 2017 

SSAC Comment on the Cross Community Working Group on Naming Relating Functions Proposal

Oct 5, 2015 

May 4, 2021 

SSAC Comments on Root Zone Key Signing Key Rollover Plan

Dec 9, 2015 

May 12, 2016 

SSAC Comments to ITU-D on Establishing New Certification Authorities

Feb 8, 2016 

Mar 17, 2016 

SSAC Comment on the CCWG-Accountability 3rd Draft Proposal

Jan 28, 2016 

Feb 8, 2016 

SSAC Comment on gTLD Marketplace Health Index Proposal

Mar 7, 2016 

Apr 27, 2016 

Advisory on Uses of the Shared Global Domain Name Space

Mar 17, 2016 

Apr 27, 2016 

SSAC Advisory on the Changing Nature of IPv4 Address Semantics

Apr 21, 2016 

Apr 27, 2016 

SSAC Approval of CCWG-Accountability Supplemental Final Proposal on Work Stream 1 Recommendations

May 25, 2016 

Feb 24, 2017 

SSAC Response to Request for Input on Next Generation gTLD RDS to Replace WHOIS Policy Development Process (PDP)

Jun 3, 2016 

Feb 24, 2017 

SSAC Response to the Request for Advice Relating to the 2012 New gTLD Round

Jul 15, 2016 

Feb 24, 2017 

SSAC Comment on Proposed Amendments to Base New gTLD Registry Agreement

Aug 31, 2016 

Aug 13, 2018 

SSAC Comments on Guidelines for the Extended Process Similarity Review Panel for the IDN ccTLD Fast Track Process

Oct 19, 2016 

Feb 24, 2017 

SSAC Response to the GNSO Policy Development Process (PDP) Working Group on the Review of all Rights Protection Mechanisms in all Generic Top Level Domains (gTLDs)

Oct 19, 2016 

Feb 24, 2017