Yes — conterrainternetservices.com has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 conterrainternetservices.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:5667 answers · 443✓ 2606:4700:3036::ac43:d9d6 answers · 443	yes
www over IPv6 www.conterrainternetservices.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:d9d6 answers · 443✓ 2606:4700:3035::6815:5667 answers · 443	yes
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. natasha.ns.cloudflare.com ✓stanley.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Redirects to conterra.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.

https://conterrainternetservices.com/ via 2606:4700:3035::6815:5667 → 301https://conterra.com/ · redirects to conterra.com, which has no IPv6 address

problem

Nothing keeping you from an A

A redirect leads off IPv6
Redirects to conterra.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all. Give the redirect target IPv6 too, or redirect somewhere that has it.

Check again

conterrainternetservices.com Has IPv6

A (IPv4)	104.21.86.103 172.67.217.214
AAAA (IPv6)	2606:4700:3035::6815:5667 2606:4700:3036::ac43:d9d6

www.conterrainternetservices.com Has IPv6

A (IPv4)	104.21.86.103 172.67.217.214
AAAA (IPv6)	2606:4700:3036::ac43:d9d6 2606:4700:3035::6815:5667

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: conterrainternetservices.com
Measured 2026-11-06 09:09:02 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.86.103, 172.67.217.214
AAAA (IPv6): 2606:4700:3035::6815:5667, 2606:4700:3036::ac43:d9d6
www AAAA:    2606:4700:3036::ac43:d9d6, 2606:4700:3035::6815:5667

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: conterrainternetservices.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:5667: answers (TCP 443)
    2606:4700:3036::ac43:d9d6: answers (TCP 443)
- www over IPv6: www.conterrainternetservices.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:d9d6: answers (TCP 443)
    2606:4700:3035::6815:5667: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It 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): Redirects to conterra.com, which has no IPv6 address — so IPv6 visitors end up needing IPv4 after all.
    https://conterrainternetservices.com/ via 2606:4700:3035::6815:5667 -> HTTP 301, certificate: valid
    https://conterra.com/ (redirects to conterra.com, which has no IPv6 address)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/oaw7e1DYAt

Permanent link: aaaa.bot/r/oaw7e1DYAt · How we measure

Checked 2026-11-06 09:09:02 UTC. Full DNS report: dns.pizza/domain/conterrainternetservices.com · Age, certificate and blocklists: how.is/conterrainternetservices.com · JSON: /api/v1/conterrainternetservices.com