Yes — f4energyservices.info has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 f4energyservices.info has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:3a8f answers · 443✓ 2606:4700:3037::ac43:a05c answers · 443	yes
www over IPv6 www.f4energyservices.info has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:3a8f answers · 443✓ 2606:4700:3037::ac43:a05c answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. smtp.google.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. jonah.ns.cloudflare.com ✓lina.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
f4energyservices.info didn't complete an HTTPS request over IPv6 (timed out).

https://f4energyservices.info/ via 2606:4700:3037::6815:3a8f · timed out

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/f4energyservices.info.svg)](https://aaaa.bot/f4energyservices.info)

Check again

f4energyservices.info Has IPv6

A (IPv4)	172.67.160.92 104.21.58.143
AAAA (IPv6)	2606:4700:3037::6815:3a8f 2606:4700:3037::ac43:a05c

www.f4energyservices.info Has IPv6

A (IPv4)	104.21.58.143 172.67.160.92
AAAA (IPv6)	2606:4700:3037::6815:3a8f 2606:4700:3037::ac43:a05c

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: f4energyservices.info
Measured 2026-11-15 06:16:43 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.160.92, 104.21.58.143
AAAA (IPv6): 2606:4700:3037::6815:3a8f, 2606:4700:3037::ac43:a05c
www AAAA:    2606:4700:3037::6815:3a8f, 2606:4700:3037::ac43:a05c

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: f4energyservices.info has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:3a8f: answers (TCP 443)
    2606:4700:3037::ac43:a05c: answers (TCP 443)
- www over IPv6: www.f4energyservices.info has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:3a8f: answers (TCP 443)
    2606:4700:3037::ac43:a05c: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server 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): f4energyservices.info didn't complete an HTTPS request over IPv6 (timed out).
    https://f4energyservices.info/ via 2606:4700:3037::6815:3a8f, certificate: valid (timed out)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/iLRUhg7_LY

Permanent link: aaaa.bot/r/iLRUhg7_LY · How we measure

Checked 2026-11-15 06:16:43 UTC. Full DNS report: dns.pizza/domain/f4energyservices.info · Age, certificate and blocklists: how.is/f4energyservices.info · JSON: /api/v1/f4energyservices.info