Yes — espn.com has IPv6.

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

IPv6 readiness

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

Website over IPv6 espn.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested). ✓ 2600:9000:24f4:c600:d:ac18:e2c0:93a1 answers · 443✓ 2600:9000:24f4:1600:d:ac18:e2c0:93a1 answers · 443✓ 2600:9000:24f4:9800:d:ac18:e2c0:93a1 answers · 443✓ 2600:9000:24f4:1c00:d:ac18:e2c0:93a1 answers · 443– 2600:9000:24f4:400:d:ac18:e2c0:93a1 not tested– 2600:9000:24f4:5400:d:ac18:e2c0:93a1 not tested– 2600:9000:24f4:e800:d:ac18:e2c0:93a1 not tested– 2600:9000:24f4:ac00:d:ac18:e2c0:93a1 not tested	yes
www over IPv6 www.espn.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested). ✓ 2600:9000:2202:4600:e:fe33:5580:93a1 answers · 443✓ 2600:9000:2202:a600:e:fe33:5580:93a1 answers · 443✓ 2600:9000:2202:4400:e:fe33:5580:93a1 answers · 443✓ 2600:9000:2202:b000:e:fe33:5580:93a1 answers · 443– 2600:9000:2202:5600:e:fe33:5580:93a1 not tested– 2600:9000:2202:1000:e:fe33:5580:93a1 not tested– 2600:9000:2202:a00:e:fe33:5580:93a1 not tested– 2600:9000:2202:da00:e:fe33:5580:93a1 not tested	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. espn-com.mail.protection.outlook.com ✗	no
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns-1045.awsdns-02.org ✓ns-122.awsdns-15.com ✓ns-1936.awsdns-50.co.uk ✓ns-846.awsdns-41.net ✓	yes

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

https://espn.com/ via 2600:9000:24f4:c600:d:ac18:e2c0:93a1 → 301https://www.espn.com/ via 2600:9000:2202:4600:e:fe33:5580:93a1 → 200

works

What's keeping espn.com from an A

Mail servers without IPv6
espn-com.mail.protection.outlook.com has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

espn.com Has IPv6

A (IPv4)	18.165.83.90 18.165.83.78 18.165.83.113 18.165.83.20
AAAA (IPv6)	2600:9000:24f4:c600:d:ac18:e2c0:93a1 2600:9000:24f4:1600:d:ac18:e2c0:93a1 2600:9000:24f4:9800:d:ac18:e2c0:93a1 2600:9000:24f4:1c00:d:ac18:e2c0:93a1 2600:9000:24f4:400:d:ac18:e2c0:93a1 2600:9000:24f4:5400:d:ac18:e2c0:93a1 2600:9000:24f4:e800:d:ac18:e2c0:93a1 2600:9000:24f4:ac00:d:ac18:e2c0:93a1

www.espn.com Has IPv6

A (IPv4)	13.227.65.6 13.227.65.39 13.227.65.12 13.227.65.15
AAAA (IPv6)	2600:9000:2202:4600:e:fe33:5580:93a1 2600:9000:2202:a600:e:fe33:5580:93a1 2600:9000:2202:4400:e:fe33:5580:93a1 2600:9000:2202:b000:e:fe33:5580:93a1 2600:9000:2202:5600:e:fe33:5580:93a1 2600:9000:2202:1000:e:fe33:5580:93a1 2600:9000:2202:a00:e:fe33:5580:93a1 2600:9000:2202:da00:e:fe33:5580:93a1

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: espn.com
Measured 2026-10-30 20:04:34 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    18.165.83.90, 18.165.83.78, 18.165.83.113, 18.165.83.20
AAAA (IPv6): 2600:9000:24f4:c600:d:ac18:e2c0:93a1, 2600:9000:24f4:1600:d:ac18:e2c0:93a1, 2600:9000:24f4:9800:d:ac18:e2c0:93a1, 2600:9000:24f4:1c00:d:ac18:e2c0:93a1, 2600:9000:24f4:400:d:ac18:e2c0:93a1, 2600:9000:24f4:5400:d:ac18:e2c0:93a1, 2600:9000:24f4:e800:d:ac18:e2c0:93a1, 2600:9000:24f4:ac00:d:ac18:e2c0:93a1
www AAAA:    2600:9000:2202:4600:e:fe33:5580:93a1, 2600:9000:2202:a600:e:fe33:5580:93a1, 2600:9000:2202:4400:e:fe33:5580:93a1, 2600:9000:2202:b000:e:fe33:5580:93a1, 2600:9000:2202:5600:e:fe33:5580:93a1, 2600:9000:2202:1000:e:fe33:5580:93a1, 2600:9000:2202:a00:e:fe33:5580:93a1, 2600:9000:2202:da00:e:fe33:5580:93a1

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: espn.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
    2600:9000:24f4:c600:d:ac18:e2c0:93a1: answers (TCP 443)
    2600:9000:24f4:1600:d:ac18:e2c0:93a1: answers (TCP 443)
    2600:9000:24f4:9800:d:ac18:e2c0:93a1: answers (TCP 443)
    2600:9000:24f4:1c00:d:ac18:e2c0:93a1: answers (TCP 443)
    2600:9000:24f4:400:d:ac18:e2c0:93a1: not tested
    2600:9000:24f4:5400:d:ac18:e2c0:93a1: not tested
    2600:9000:24f4:e800:d:ac18:e2c0:93a1: not tested
    2600:9000:24f4:ac00:d:ac18:e2c0:93a1: not tested
- www over IPv6: www.espn.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
    2600:9000:2202:4600:e:fe33:5580:93a1: answers (TCP 443)
    2600:9000:2202:a600:e:fe33:5580:93a1: answers (TCP 443)
    2600:9000:2202:4400:e:fe33:5580:93a1: answers (TCP 443)
    2600:9000:2202:b000:e:fe33:5580:93a1: answers (TCP 443)
    2600:9000:2202:5600:e:fe33:5580:93a1: not tested
    2600:9000:2202:1000:e:fe33:5580:93a1: not tested
    2600:9000:2202:a00:e:fe33:5580:93a1: not tested
    2600:9000:2202:da00:e:fe33:5580:93a1: not tested
- Mail servers (MX) have IPv6: None of the mail servers has an AAAA record.
- Nameservers have IPv6: 4 of 4 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://espn.com/ via 2600:9000:24f4:c600:d:ac18:e2c0:93a1 -> HTTP 301, certificate: valid
    https://www.espn.com/ via 2600:9000:2202:4600:e:fe33:5580:93a1 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/qeRXu6-yL2

Permanent link: aaaa.bot/r/qeRXu6-yL2 · How we measure

Checked 2026-10-30 20:04:34 UTC — one of the top 1,000 sites, re-checked weekly. Re-check now. Full DNS report: dns.pizza/domain/espn.com · JSON: /api/v1/espn.com