Yes — sciencedaily.com has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 sciencedaily.com has 3 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:20::681a:40f answers · 443✓ 2606:4700:20::ac43:4ba6 answers · 443✓ 2606:4700:20::681a:50f answers · 443	yes
www over IPv6 www.sciencedaily.com has 3 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:20::ac43:4ba6 answers · 443✓ 2606:4700:20::681a:40f answers · 443✓ 2606:4700:20::681a:50f answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. aspmx.l.google.com ✓aspmx2.googlemail.com ✓aspmx3.googlemail.com ✓alt1.aspmx.l.google.com ✓alt2.aspmx.l.google.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. beth.ns.cloudflare.com ✓noah.ns.cloudflare.com ✓	yes

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

https://sciencedaily.com/ via 2606:4700:20::681a:40f → 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/sciencedaily.com.svg)](https://aaaa.bot/sciencedaily.com)

Check again

sciencedaily.com Has IPv6

A (IPv4)	104.26.5.15 104.26.4.15 172.67.75.166
AAAA (IPv6)	2606:4700:20::681a:40f 2606:4700:20::ac43:4ba6 2606:4700:20::681a:50f

www.sciencedaily.com Has IPv6

A (IPv4)	104.26.5.15 104.26.4.15 172.67.75.166
AAAA (IPv6)	2606:4700:20::ac43:4ba6 2606:4700:20::681a:40f 2606:4700:20::681a:50f

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: sciencedaily.com
Measured 2026-10-31 12:51:24 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.26.5.15, 104.26.4.15, 172.67.75.166
AAAA (IPv6): 2606:4700:20::681a:40f, 2606:4700:20::ac43:4ba6, 2606:4700:20::681a:50f
www AAAA:    2606:4700:20::ac43:4ba6, 2606:4700:20::681a:40f, 2606:4700:20::681a:50f

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: sciencedaily.com has 3 IPv6 addresses and answers on every one we tested.
    2606:4700:20::681a:40f: answers (TCP 443)
    2606:4700:20::ac43:4ba6: answers (TCP 443)
    2606:4700:20::681a:50f: answers (TCP 443)
- www over IPv6: www.sciencedaily.com has 3 IPv6 addresses and answers on every one we tested.
    2606:4700:20::ac43:4ba6: answers (TCP 443)
    2606:4700:20::681a:40f: answers (TCP 443)
    2606:4700:20::681a:50f: 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): Loads over IPv6 with a valid certificate: HTTP 200.
    https://sciencedaily.com/ via 2606:4700:20::681a:40f -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/jFcSOKMm4y

Permanent link: aaaa.bot/r/jFcSOKMm4y · How we measure

Checked 2026-10-31 12:51:24 UTC. Full DNS report: dns.pizza/domain/sciencedaily.com · JSON: /api/v1/sciencedaily.com