OARC 46 Wrap-Up

Thank You for Joining Us in Edinburgh and Online

The Ross Fountain in West Princes Street Garden with Edinburgh Castle in the Background

**OARC 46** has officially wrapped, and we want to thank everyone who joined us in Edinburgh and remotely for two days of DNS operations, research, measurement, security, and community discussion.

Held at the **EICC** in Edinburgh on May 16–17, 2026, OARC 46 brought together the global DNS community for technical presentations, operational lessons learned, hallway conversations, and the kind of practical knowledge-sharing that makes OARC workshops so valuable.

[embed]This slideshow captures moments from OARC 46 in Edinburgh, including sessions, speakers, attendees and hallway conversations from across the workshop.

In this wrap-up

• **OARC 46 by the Numbers**
• **Programme Highlights**
• **Community and Hallway Track**
• **Thank You to Our Speakers, PC, Sponsors, and Volunteers**
• **Attendee Survey**
• **Recordings and Materials**
• **Looking Ahead to OARC 47**

OARC 46 by the Numbers

This year, **OARC 46 welcomed 180 total attendees, including 158 in-person attendees in Edinburgh and 22 remote attendees** joining online.

The workshop brought together participants from 91 represented organizations across 29 countries, highlighting the continued global reach of the **DNS-OARC** community.

We were also pleased to welcome 36 first-time attendees to OARC 46. Thank you to the 21 mentors who volunteered their time and experience to help new attendees connect with the community. Approximately 26 attendees joined us for the Mentor Mingle, helping start the workshop with conversation, introductions, and a welcoming space for first-time participants.

Programme Highlights

The OARC 46 programme covered a wide range of topics across DNS operations, DNSSEC, measurement, privacy, automation, security, and infrastructure resilience.

Several talks received especially strong attendee feedback, including:

• *Parent vs. Child-Centric Resolver Interoperability Testing*— Petr Špaček
• *Measuring Anycast Routing* — Remi Hendriks
• *Bitflipping root-servers.net*— Peter Thomassen
• *Another Man’s Treasure: Security and Privacy Risks of Junk DNS Queries* — Elizabeth Boswell
• *RootViz: visualizing real-time monitoring of Root and TLD servers*— Giovane Moura
• *DNSSEC at Scale: Enable Signing Across 5500 Domains in the Real World* — Jens Hoffrichter

These sessions reflected the breadth of the **OARC 46** programme, from resolver interoperability and anycast measurement to DNSSEC operations, root infrastructure, visualization, and security/privacy research.

The Day 2 lightning talks also gave attendees a fast-paced look at timely operational topics, with especially strong feedback for *Brace for Upgrades — Plural, [Tracing and DNS](https://indico.dns-oarc.net/event/56/contributions/1236/), and [Cross-addressed Nameservers](https://indico.dns-oarc.net/event/56/contributions/1234/)*.

Together, the sessions highlighted the practical, operational, and research-focused work happening across the DNS community, as well as the value of bringing operators, researchers, developers, and infrastructure providers together in the same room.

Community and Hallway Track

As always, the workshop was about more than the formal programme. The conversations between sessions, during breaks, and at the social event are a core part of what makes **DNS-OARC** valuable.

OARC 46 included several opportunities for attendees to connect in person, including the Mentor Mingle hosted at **Tigerlily Edinburgh, informal discussions throughout the workshop, and the OARC 46 social at [The Scottish Cafe & Restaurant](https://www.contini.com/events/scottish-cafe-restaurant-venue/)**.

We were also encouraged to see continued growth in the number of women attending OARC workshops. At OARC 46, 18 women attendees gathered for a group photo, a small but meaningful reflection of the broader participation and community-building we hope to continue strengthening at future workshops.

Thank you to everyone who helped make first-time attendees feel welcome, supported new connections, and contributed to the open, collaborative spirit of the event.

Thank You to Our Speakers, PC, Sponsors, and Volunteers

OARC workshops are only possible because of the time and effort contributed by many people across the community.

Thank you to our speakers for sharing their work, operational experiences, and research. Thank you to the **Programme Committee** for reviewing submissions and shaping the agenda. Thank you to our session chairs, mentors, volunteers, staff, and attendees for helping the event run smoothly.

We would also like to thank our OARC 46 **sponsors and [patrons](https://indico.dns-oarc.net/event/56/page/354-workshop-patrons-2026)** for their support of the workshop and the broader DNS-OARC mission.

Attendee Survey

If you attended **OARC 46**, please take a few minutes to complete the attendee survey:

**OARC 46 Survey Link**

Your feedback helps the OARC team, Programme Committee, and Board understand what worked well and where we can improve future workshops. We read the responses carefully and use them in our planning.

Recordings and Materials

Slides and recordings will be made available as they are finalized.

Workshop recordings will be published on the **DNS-OARC** YouTube channel:

https://www.youtube.com/@DNSOARC/

Looking Ahead to OARC 47

Whether you joined us in Edinburgh or followed along remotely, thank you for being part of OARC 46. The workshop is strongest when the community shows up, shares openly, asks good questions, and helps move DNS operations and research forward together.

Next, we look forward to seeing the community in Vancouver, British Columbia for our next workshop, **OARC 47 taking place November 9–10, 2026**.