dns.business publishes IPv6 but doesn't answer on it.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

This is a saved measurement from 2026-11-15 17:02 UTC. Check dns.business live now

IPv6 readiness

Publishes IPv6 but doesn't answer on it — worse than having none.

Website over IPv6 dns.business has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4. ✗ 2001:43f8:790:70:e000:0:c41d:3bf1 no answer	broken
www over IPv6 www.dns.business has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4. ✗ 2001:43f8:790:70:e000:0:c41d:3bf1 no answer	broken
Mail servers (MX) have IPv6 Every mail server has an AAAA record. alt2.aspmx.l.google.com ✓alt3.aspmx.l.google.com ✓alt1.aspmx.l.google.com ✓aspmx.l.google.com ✓alt4.aspmx.l.google.com ✓	yes
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns1.dns.business ✓ns3.dns.business ✓ns4.dns.business ✓ns2us.dns.business ✓	yes

What's keeping dns.business from an A

Fix or remove the AAAA record for dns.business
Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.
Fix or remove the AAAA record for www.dns.business
Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.

Check again

dns.business Has IPv6

A (IPv4)	196.29.59.241
AAAA (IPv6)	2001:43f8:790:70:e000:0:c41d:3bf1

www.dns.business Has IPv6

A (IPv4)	196.29.59.241
AAAA (IPv6)	2001:43f8:790:70:e000:0:c41d:3bf1

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

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

IPv6 measurement: dns.business
Measured 2026-11-15 17:02:18 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    196.29.59.241
AAAA (IPv6): 2001:43f8:790:70:e000:0:c41d:3bf1
www AAAA:    2001:43f8:790:70:e000:0:c41d:3bf1

Readiness grade F: Publishes IPv6 but doesn't answer on it — worse than having none.
- Website over IPv6: dns.business has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
    2001:43f8:790:70:e000:0:c41d:3bf1: no answer
- www over IPv6: www.dns.business has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
    2001:43f8:790:70:e000:0:c41d:3bf1: no answer
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 4 of 4 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/9LEOD8Te5B

Permanent link: aaaa.bot/r/9LEOD8Te5B · How we measure

Checked 2026-11-15 17:02:18 UTC. Full DNS report: dns.pizza/domain/dns.business · Age, certificate and blocklists: how.is/dns.business · JSON: /api/v1/dns.business