IPv6
Measured 2026-11-01 17:24 UTC · aaaa.botThe website has no IPv6.
duke.edu has no IPv6 address published.
- ✗ duke.edu: no IPv6 address
- ✗ www.duke.edu: no IPv6 address
- ✓ Mail: 1 of 1 servers have IPv6
- ✗ Nameservers: none have IPv6
Details: published addresses and what answered
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| duke.edu | Publishedno IPv6 address published | Answers when we connectnothing to test |
| www.duke.edu | Publishedno IPv6 address published | Answers when we connectnothing to test |
Publishedduke-edu.mail.protection.outlook.com | Answers when we connect✓ has IPv6 | |
| Nameservers | Publisheddns-auth-02.oit.duke.edudns-nc1-01.oit.duke.edudns-auth-01.oit.duke.edu | Answers when we connect✗ no IPv6✗ no IPv6✗ no IPv6 |
Lineage
Our records: Jan 7, 2009 → Nov 1, 2026Oldest registry snapshot we hold: 2025 · 0 renewals on record. These dates are when our records begin, not when the domain was registered.
What changed
- IPv6 first measured: no IPv6 published on Nov 1, 2026duke.edu: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-01 17:24 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- DNS moved to duke.edu between Aug 22, 2016 and Aug 8, 2017avallone.stanford.edu, dns-auth-01.oit.duke.edu, dns-auth-02.oit.duke.edu → dns-auth-01.oit.duke.edu, dns-auth-02.oit.duke.edu, dns-nc1-01.oit.duke.edu. Old set last seen in WHOIS on 2016-08-22; new set first seen in WHOIS on 2017-08-08.
- New nameservers at duke.edu + stanford.edu between May 10, 2012 and Jun 18, 2012authdns1.netcom.duke.edu, authdns2.netcom.duke.edu, authdns3.netcom.duke.edu, authdns4.netcom.duke.edu, avallone.stanford.edu → avallone.stanford.edu, dns-auth-01.oit.duke.edu, dns-auth-02.oit.duke.edu. Old set last seen in WHOIS on 2012-05-10; new set first seen in WHOIS on 2012-06-18.
Registrar and renewals: 16 WHOIS/RDAP snapshots, 2025-01-05 to 2025-04-27 (ledger built 2026-09-27). Every renewal
Nameservers, WHOIS snapshots: 496 WHOIS/RDAP snapshots that listed nameservers, 2009-01-07 to 2026-06-04 (who.is archive). A change is placed between the nearest observations on either side, from whichever source made them; where the two sources disagree, both are shown.
Hatched = the span we hold records for. A coloured bar runs only between observations that named the same registrar or operator; nothing is assumed in between.
Each mark sits at the first observation of the new state; its bracket runs back to the last observation of the old one.
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