georgetown.edu
IPv6
Measured 2026-11-02 18:38 UTC · aaaa.botWorks over IPv6, with gaps: its mail servers lack IPv6; its nameservers lack IPv6.
georgetown.edu has 2 IPv6 addresses and answers on every one we tested.
- ✓ georgetown.edu answers (2 of 2 addresses)
- ✓ www.georgetown.edu answers (2 of 2)
- ✗ Mail: 0 of 2 servers have IPv6
- ✗ Nameservers: none have IPv6
Details: published addresses and what answered
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| georgetown.edu | Published2620:12a:8000::22620:12a:8001::2 | Answers when we connect✓ answers on 443✓ answers on 443 |
| www.georgetown.edu | Published2620:12a:8001::22620:12a:8000::2 | Answers when we connect✓ answers on 443✓ answers on 443 |
Publishedusb-smtp-inbound-2.mimecast.comusb-smtp-inbound-1.mimecast.com | Answers when we connect✗ no IPv6✗ no IPv6 | |
| Nameservers | Publishedns6.georgetown.eduns4.georgetown.eduns5.georgetown.edu | Answers when we connect✗ no IPv6✗ no IPv6✗ no IPv6 |
Lineage
Our records: Jan 3, 2009 → Nov 2, 2026Oldest registry snapshot we hold: 2025 · 0 renewals on record. These dates are when our records begin, not when the domain was registered.
DNS provider
- UltraDNS (Neustar/Vercara) + ultradns.co.ukJan 2009 – May 2012
- georgetown.eduJun 2012 – Jun 2026
IPv6
- IPv6published, and answeringFirst measured Nov 2026
What changed
- IPv6 first measured: published, and answering on Nov 2, 2026georgetown.edu has 2 IPv6 addresses. Grade C. Measured by aaaa.bot, 2026-11-02 00:05 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- New nameservers at georgetown.edu between Oct 24, 2018 and Dec 5, 2018ns1.georgetown.edu, ns2.georgetown.edu, ns3.georgetown.edu → ns4.georgetown.edu, ns5.georgetown.edu, ns6.georgetown.edu. Old set last seen in WHOIS on 2018-10-24; new set first seen in WHOIS on 2018-12-05.
- DNS moved to georgetown.edu between May 9, 2012 and Jun 22, 2012pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns5.ultradns.info, pdns6.ultradns.co.uk → ns1.georgetown.edu, ns2.georgetown.edu, ns3.georgetown.edu. Old set last seen in WHOIS on 2012-05-09; new set first seen in WHOIS on 2012-06-22.
Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.
Registrar and renewals: 24 WHOIS/RDAP snapshots, 2025-01-07 to 2025-04-25 (ledger built 2026-09-27). Every renewal
DNS provider, WHOIS snapshots: 323 WHOIS/RDAP snapshots that listed nameservers, 2009-01-03 to 2026-06-26 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.
Want to know when georgetown.edu changes?
Monitor it free — 5 monitors, uptime checks every 5 minutes, email alerts when something breaks. No card required.