Yes — oneroof.co.nz has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 oneroof.co.nz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:10::6814:1242 answers · 443✓ 2606:4700:10::ac42:9232 answers · 443	yes
www over IPv6 www.oneroof.co.nz has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:10::6814:1242 answers · 443✓ 2606:4700:10::ac42:9232 answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. au-smtp-inbound-1.mimecast.com ✗au-smtp-inbound-2.mimecast.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. desi.ns.cloudflare.com ✓jobs.ns.cloudflare.com ✓	yes

First measured 2026-11-05; last confirmed 2026-11-05.

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://oneroof.co.nz/ via 2606:4700:10::6814:1242 → 301https://www.oneroof.co.nz/ via 2606:4700:10::6814:1242 → 200

works

What's keeping oneroof.co.nz from an A

Mail servers without IPv6
au-smtp-inbound-1.mimecast.com, au-smtp-inbound-2.mimecast.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

oneroof.co.nz Has IPv6

A (IPv4)	104.20.18.66 172.66.146.50
AAAA (IPv6)	2606:4700:10::6814:1242 2606:4700:10::ac42:9232

www.oneroof.co.nz Has IPv6

A (IPv4)	172.66.146.50 104.20.18.66
AAAA (IPv6)	2606:4700:10::6814:1242 2606:4700:10::ac42:9232

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: oneroof.co.nz
Measured 2026-11-15 16:26:30 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.20.18.66, 172.66.146.50
AAAA (IPv6): 2606:4700:10::6814:1242, 2606:4700:10::ac42:9232
www AAAA:    2606:4700:10::6814:1242, 2606:4700:10::ac42:9232

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: oneroof.co.nz has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:10::6814:1242: answers (TCP 443)
    2606:4700:10::ac42:9232: answers (TCP 443)
- www over IPv6: www.oneroof.co.nz has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:10::6814:1242: answers (TCP 443)
    2606:4700:10::ac42:9232: answers (TCP 443)
- 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).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://oneroof.co.nz/ via 2606:4700:10::6814:1242 -> HTTP 301, certificate: valid
    https://www.oneroof.co.nz/ via 2606:4700:10::6814:1242 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/pQSuq1xb91

Permanent link: aaaa.bot/r/pQSuq1xb91 · How we measure

Checked 2026-11-15 16:26:30 UTC. Full DNS report: dns.pizza/domain/oneroof.co.nz · Age, certificate and blocklists: how.is/oneroof.co.nz · JSON: /api/v1/oneroof.co.nz