Yes — invertonairductservicefrisco.com has IPv6.

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

This is a saved measurement from 2026-11-02 07:54 UTC. Check invertonairductservicefrisco.com live now

IPv6 readiness

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

Website over IPv6 invertonairductservicefrisco.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::6815:32ef answers · 443✓ 2606:4700:3037::ac43:d5dc answers · 443	yes
www over IPv6 www.invertonairductservicefrisco.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::ac43:d5dc answers · 443✓ 2606:4700:3030::6815:32ef answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. bfajnyn5.mx1.previewhost.net ✗bfajnyn5.mx2.previewhost.net ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. kira.ns.cloudflare.com ✓leonidas.ns.cloudflare.com ✓	yes

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

https://invertonairductservicefrisco.com/ via 2606:4700:3030::6815:32ef → 200

works

What's keeping invertonairductservicefrisco.com from an A

Mail servers without IPv6
bfajnyn5.mx1.previewhost.net, bfajnyn5.mx2.previewhost.net 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

invertonairductservicefrisco.com Has IPv6

A (IPv4)	104.21.50.239 172.67.213.220
AAAA (IPv6)	2606:4700:3030::6815:32ef 2606:4700:3037::ac43:d5dc

www.invertonairductservicefrisco.com Has IPv6

A (IPv4)	104.21.50.239 172.67.213.220
AAAA (IPv6)	2606:4700:3037::ac43:d5dc 2606:4700:3030::6815:32ef

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: invertonairductservicefrisco.com
Measured 2026-11-02 07:54:43 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.50.239, 172.67.213.220
AAAA (IPv6): 2606:4700:3030::6815:32ef, 2606:4700:3037::ac43:d5dc
www AAAA:    2606:4700:3037::ac43:d5dc, 2606:4700:3030::6815:32ef

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: invertonairductservicefrisco.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::6815:32ef: answers (TCP 443)
    2606:4700:3037::ac43:d5dc: answers (TCP 443)
- www over IPv6: www.invertonairductservicefrisco.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::ac43:d5dc: answers (TCP 443)
    2606:4700:3030::6815:32ef: 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: HTTP 200.
    https://invertonairductservicefrisco.com/ via 2606:4700:3030::6815:32ef -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/4S4DXgXwrR

Permanent link: aaaa.bot/r/4S4DXgXwrR · How we measure

Checked 2026-11-02 07:54:43 UTC. Full DNS report: dns.pizza/domain/invertonairductservicefrisco.com · JSON: /api/v1/invertonairductservicefrisco.com