No — sorbonne-universite.fr is IPv4 only.

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

D
IPv6 readiness
The website has no IPv6.
Website over IPv6
sorbonne-universite.fr has no AAAA record.		no
www over IPv6
www.sorbonne-universite.fr has no AAAA record.		no
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx2.relay.renater.fr ✗mx1.relay.renater.fr ✗
no
Nameservers have IPv6
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
soleil.uvsq.fr ✗shiva.jussieu.fr ✗ns0.sorbonne-universite.fr ✗ns1.sorbonne-universite.fr ✗ganesh.upmc.fr ✗
no

What's keeping sorbonne-universite.fr from an A

  1. Give sorbonne-universite.fr and www.sorbonne-universite.fr 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
  2. Mail servers without IPv6
    mx2.relay.renater.fr, mx1.relay.renater.fr have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.
  3. Nameservers without IPv6
    soleil.uvsq.fr, shiva.jussieu.fr, ns0.sorbonne-universite.fr, ns1.sorbonne-universite.fr, ganesh.upmc.fr 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

sorbonne-universite.fr  IPv4 only

A (IPv4)151.101.2.216
151.101.194.216
151.101.66.216
151.101.130.216
AAAA (IPv6)none

www.sorbonne-universite.fr  IPv4 only

A (IPv4)151.101.130.216
151.101.66.216
151.101.2.216
151.101.194.216
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

 Permanent link: aaaa.bot/r/0tNvStoKjk · How we measure

Checked 2026-10-31 20:19:46 UTC. Full DNS report: dns.pizza/domain/sorbonne-universite.fr · JSON: /api/v1/sorbonne-universite.fr