Yes — bing.com has IPv6.

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

This is a saved measurement from 2026-10-30 17:14 UTC. Check bing.com live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 bing.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2620:1ec:33::10 answers · 443✓ 2620:1ec:33:1::10 answers · 443	yes
www over IPv6 www.bing.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested). ✓ 2600:1408:c400:c::17cd:688c answers · 443✓ 2600:1408:c400:c::17cd:6889 answers · 443✓ 2600:1408:c400:c::17cd:689b answers · 443✓ 2600:1408:c400:c::17cd:688a answers · 443– 2600:1408:c400:c::17cd:6886 not tested	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. bing-com.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. ns1-204.azure-dns.com ✓ns2-204.azure-dns.net ✓ns3-204.azure-dns.org ✓ns4-204.azure-dns.info ✓dns1.p09.nsone.net ✓dns2.p09.nsone.net ✓dns3.p09.nsone.net ✓dns4.p09.nsone.net ✓	yes

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

https://bing.com/ via 2620:1ec:33::10 → 301https://www.bing.com/?toWww=1&redig=6CC5A2C065BB4008ACA98EDE12F17402 via 2600:1408:c400:c::17cd:688c → 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/bing.com.svg)](https://aaaa.bot/bing.com)

Check again

bing.com Has IPv6

A (IPv4)	150.171.28.10 150.171.27.10
AAAA (IPv6)	2620:1ec:33::10 2620:1ec:33:1::10

www.bing.com Has IPv6

Alias of	www-www.bing.com.trafficmanager.net → www.bing.com.edgekey.net → e86303.dscx.akamaiedge.net
A (IPv4)	23.212.250.18 23.212.250.16 23.212.250.22 23.212.250.19 23.212.250.20 23.212.250.21 23.212.250.13 23.212.250.14 23.212.250.12
AAAA (IPv6)	2600:1408:c400:c::17cd:688c 2600:1408:c400:c::17cd:6889 2600:1408:c400:c::17cd:689b 2600:1408:c400:c::17cd:688a 2600:1408:c400:c::17cd:6886

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: bing.com
Measured 2026-10-30 17:14:31 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    150.171.28.10, 150.171.27.10
AAAA (IPv6): 2620:1ec:33::10, 2620:1ec:33:1::10
www AAAA:    2600:1408:c400:c::17cd:688c, 2600:1408:c400:c::17cd:6889, 2600:1408:c400:c::17cd:689b, 2600:1408:c400:c::17cd:688a, 2600:1408:c400:c::17cd:6886

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: bing.com has 2 IPv6 addresses and answers on every one we tested.
    2620:1ec:33::10: answers (TCP 443)
    2620:1ec:33:1::10: answers (TCP 443)
- www over IPv6: www.bing.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).
    2600:1408:c400:c::17cd:688c: answers (TCP 443)
    2600:1408:c400:c::17cd:6889: answers (TCP 443)
    2600:1408:c400:c::17cd:689b: answers (TCP 443)
    2600:1408:c400:c::17cd:688a: answers (TCP 443)
    2600:1408:c400:c::17cd:6886: not tested
- 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).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://bing.com/ via 2620:1ec:33::10 -> HTTP 301, certificate: valid
    https://www.bing.com/?toWww=1&redig=6CC5A2C065BB4008ACA98EDE12F17402 via 2600:1408:c400:c::17cd:688c -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/L7sCIA2LJ7

Permanent link: aaaa.bot/r/L7sCIA2LJ7 · How we measure

Checked 2026-10-30 17:14:31 UTC. Full DNS report: dns.pizza/domain/bing.com · JSON: /api/v1/bing.com