Yes — fuel-quality-research.org has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 fuel-quality-research.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::ac43:b882 answers · 443✓ 2606:4700:3033::6815:5405 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. drew.ns.cloudflare.com ✓isabel.ns.cloudflare.com ✓	yes

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

https://fuel-quality-research.org/ via 2606:4700:3034::ac43:b882 → 302https://solitary-base-fd2d.cloudflareaccess.com/cdn-cgi/access/login/fuel-quality-research.org?kid=259c877d518888b0ebca7bdce2fafab721bdfd36b74d125bbfc4e61540aee380&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.Jacut_4ed8_RoQP3MuwghFduUaaLQlsLa7woHVla9z8zcF084KsrWX2HVL52ZwlWMZ7c96od_DowD3Rf9EZIjMjDG4WeZza7UHV_t_882UbsGNSQGYNLAwqhRffEfMioT5v9mhr3uohZQdM2aiyTbloPN1DjJReF0Qh_PBaAE1MlVmHeVsdO_uCPVmLppPvF8RUYrtmkXnQhkms07lfmIT9rqq2uU5TBnD7fH34pg91Jog55Ziy0F8sLrMNdDh-iOuiSUDD_lj31cbzKSPZQvGq-kjl67MJhY9srGrsoTfnyY-tzBEo08vR13OndMJ2ax4b1JDnG2KG-5-induBGDA&redirect_url=%2F via 2606:4700:300a::6813:c31d → 200

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/fuel-quality-research.org.svg)](https://aaaa.bot/fuel-quality-research.org)

Check again

fuel-quality-research.org Has IPv6

A (IPv4)	104.21.84.5 172.67.184.130
AAAA (IPv6)	2606:4700:3034::ac43:b882 2606:4700:3033::6815:5405

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: fuel-quality-research.org
Measured 2026-11-01 19:34:42 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.84.5, 172.67.184.130
AAAA (IPv6): 2606:4700:3034::ac43:b882, 2606:4700:3033::6815:5405

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: fuel-quality-research.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::ac43:b882: answers (TCP 443)
    2606:4700:3033::6815:5405: 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): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://fuel-quality-research.org/ via 2606:4700:3034::ac43:b882 -> HTTP 302, certificate: valid
    https://solitary-base-fd2d.cloudflareaccess.com/cdn-cgi/access/login/fuel-quality-research.org?kid=259c877d518888b0ebca7bdce2fafab721bdfd36b74d125bbfc4e61540aee380&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.Jacut_4ed8_RoQP3MuwghFduUaaLQlsLa7woHVla9z8zcF084KsrWX2HVL52ZwlWMZ7c96od_DowD3Rf9EZIjMjDG4WeZza7UHV_t_882UbsGNSQGYNLAwqhRffEfMioT5v9mhr3uohZQdM2aiyTbloPN1DjJReF0Qh_PBaAE1MlVmHeVsdO_uCPVmLppPvF8RUYrtmkXnQhkms07lfmIT9rqq2uU5TBnD7fH34pg91Jog55Ziy0F8sLrMNdDh-iOuiSUDD_lj31cbzKSPZQvGq-kjl67MJhY9srGrsoTfnyY-tzBEo08vR13OndMJ2ax4b1JDnG2KG-5-induBGDA&redirect_url=%2F via 2606:4700:300a::6813:c31d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/F0_fcA2KkH

Permanent link: aaaa.bot/r/F0_fcA2KkH · How we measure

Checked 2026-11-01 19:34:42 UTC. Full DNS report: dns.pizza/domain/fuel-quality-research.org · JSON: /api/v1/fuel-quality-research.org