No — secureserver.net is IPv4 only.

Has an IPv4 address but no IPv6 (AAAA) record. IPv6-only visitors can't reach it directly.

Measured 2026-11-01 12:26 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check secureserver.net now

IPv6 readiness

The website has no IPv6.

Website over IPv6 secureserver.net has no AAAA record.	no
www over IPv6 www.secureserver.net has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:1883::228b answers · 443✓ 2600:1408:c400:1887::228b answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. secureserver-net.mail.protection.outlook.com ✓	yes
Nameservers have IPv6 8 of 8 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. cns1.secureserver.net ✓cns2.secureserver.net ✓a11-64.akam.net ✓a1-245.akam.net ✓a20-65.akam.net ✓a6-66.akam.net ✓a8-67.akam.net ✓a9-67.akam.net ✓	yes

First measured 2026-11-01; last confirmed 2026-11-01.

What's keeping secureserver.net from an A

Give secureserver.net an IPv6 address
Ask your hosting provider for the site's IPv6 address (or the hostname to point at), then publish it as an AAAA record. If your host doesn't offer IPv6, a proxy that does can sit in front. How to add an AAAA record

Check again

secureserver.net IPv4 only

A (IPv4)	160.153.0.2
AAAA (IPv6)	none

www.secureserver.net Has IPv6

Alias of	wildcard-ipv6.secureserver.net.edgekey.net → e8843.dscx.akamaiedge.net
A (IPv4)	23.49.182.113
AAAA (IPv6)	2600:1408:c400:1883::228b 2600:1408:c400:1887::228b

What this means

Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: secureserver.net
Measured 2026-11-01 12:26:33 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    160.153.0.2
AAAA (IPv6): none
www AAAA:    2600:1408:c400:1883::228b, 2600:1408:c400:1887::228b

Readiness grade D: The website has no IPv6.
- Website over IPv6: secureserver.net has no AAAA record.
- www over IPv6: www.secureserver.net has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:1883::228b: answers (TCP 443)
    2600:1408:c400:1887::228b: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 8 of 8 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).
No TLS or HTTP request was made.
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/wpIlWUFhET

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

Checked 2026-11-01 12:26:33 UTC. Full DNS report: dns.pizza/domain/secureserver.net · JSON: /api/v1/secureserver.net