No — uc.edu is IPv4 only.

Has an IPv4 address but no IPv6 (AAAA) record. IPv6-only visitors can't reach it directly.

Measured 2026-11-02 17:38 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check uc.edu now

IPv6 readiness

The website has no IPv6.

Website over IPv6 uc.edu has no AAAA record.	no
www over IPv6 www.uc.edu has no AAAA record.	no
Mail servers (MX) have IPv6 Every mail server has an AAAA record. uc-edu.mail.protection.outlook.com ✓	yes
Nameservers have IPv6 No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS. ucdnsb.uc.edu ✗ucdnsa.uc.edu ✗domainkey.journals.uc.edu ✗	no

First measured 2026-11-02; last confirmed 2026-11-02.

What's keeping uc.edu from an A

Give uc.edu an IPv6 address
Ask your hosting provider for the site's IPv6 address (or the hostname to point at), then publish it as an AAAA record. If your host doesn't offer IPv6, a proxy that does can sit in front. How to add an AAAA record
www.uc.edu is an alias of adobe-aem.map.fastly.net, which has no IPv6
www.uc.edu is a CNAME, so it can't also have its own AAAA record. Ask whoever runs adobe-aem.map.fastly.net to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
Nameservers without IPv6
ucdnsb.uc.edu, ucdnsa.uc.edu, domainkey.journals.uc.edu all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.

Check again

uc.edu IPv4 only

A (IPv4)	129.137.4.225
AAAA (IPv6)	none

www.uc.edu IPv4 only

Alias of	cdn.adobeaemcloud.com → adobe-aem.map.fastly.net
A (IPv4)	151.101.3.10 151.101.67.10 151.101.131.10 151.101.195.10
AAAA (IPv6)	none

What this means

Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: uc.edu
Measured 2026-11-02 17:38:34 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    129.137.4.225
AAAA (IPv6): none
www AAAA:    none

Readiness grade D: The website has no IPv6.
- Website over IPv6: uc.edu has no AAAA record.
- www over IPv6: www.uc.edu has no AAAA record.
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.

Reachability = a TCP connection opened on port 443 (or 80).
No TLS or HTTP request was made.
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/oSybX8Z4rZ

Permanent link: aaaa.bot/r/oSybX8Z4rZ · How we measure

Checked 2026-11-02 17:38:34 UTC. Full DNS report: dns.pizza/domain/uc.edu · Age, certificate and blocklists: how.is/uc.edu · JSON: /api/v1/uc.edu