No — shift4.site is IPv4 only.

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

This is a saved measurement from 2026-11-08 21:46 UTC. Check shift4.site live now

IPv6 readiness

The website has no IPv6.

Website over IPv6 shift4.site has no AAAA record.	no
www over IPv6 www.shift4.site has no AAAA record.	no
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mx1.privateemail.com ✗mx2.privateemail.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. dns1.namecheaphosting.com ✓dns2.namecheaphosting.com ✓	yes

What's keeping shift4.site from an A

Give shift4.site 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.shift4.site is an alias of shift4.site, which has no IPv6
www.shift4.site is a CNAME, so it can't also have its own AAAA record. Ask whoever runs shift4.site to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
Mail servers without IPv6
mx1.privateemail.com, mx2.privateemail.com 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.

Check again

shift4.site IPv4 only

A (IPv4)	67.223.118.113
AAAA (IPv6)	none

www.shift4.site IPv4 only

Alias of	shift4.site
A (IPv4)	67.223.118.113
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: shift4.site
Measured 2026-11-08 21:46:08 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    67.223.118.113
AAAA (IPv6): none
www AAAA:    none

Readiness grade D: The website has no IPv6.
- Website over IPv6: shift4.site has no AAAA record.
- www over IPv6: www.shift4.site has no AAAA record.
- Mail servers (MX) have IPv6: None of the mail servers has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

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/2WYovdpL-R

Permanent link: aaaa.bot/r/2WYovdpL-R · How we measure

Checked 2026-11-08 21:46:08 UTC. Full DNS report: dns.pizza/domain/shift4.site · Age, certificate and blocklists: how.is/shift4.site · JSON: /api/v1/shift4.site