ccn.com - dns.ninja

`ccn.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3108::ac42:28c3^{🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3108::ac42:2b3d^{🇺🇸 Cloudflare2606:4700:3108::/48 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.40.195^{🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.43.61^{🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kanye.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bbd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kanye.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1bd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kanye.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21bd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kanye.ns.cloudflare.com`
		A	108.162.193.189^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kanye.ns.cloudflare.com`
		A	172.64.33.189^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kanye.ns.cloudflare.com`
		A	173.245.59.189^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kanye.ns.cloudflare.com`
NS	`zoe.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a95^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c095^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zoe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2095^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zoe.ns.cloudflare.com`
		A	108.162.192.149^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
		A	172.64.32.149^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
		A	173.245.58.149^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`1gxczmtzlg5mvfb46f67zh35gy8cvcdz`
TXT	`MS=ms24639430`
TXT	`_globalsign-domain-verification=4g1giT5N2MagUdqsi1_9hsa1afXQLZimLH56tRRKie`
TXT	`ahrefs-site-verification_ce1e5ce8edd81df84ace9f88fc1abbfaf495925ba1f6fb459f51...`
TXT	`brave-ledger-verification=c4aa543295a8133328a96811b403b5f8665db1d0bc3bccff7d2...`
TXT	`ca3-4e6fc5b32b9140fda641c0e89a1a8e7c`
TXT	`facebook-domain-verification=wug0eljyb5gw9mkmmm3imo50m3usnn`
TXT	`google-gws-recovery-domain-verification=44659715`
TXT	`google-gws-recovery-domain-verification=44672418`
TXT	`google-site-verification=1BmQMrAK8KFcg66kJ2tjETxGla3tU85cSqaZJRiJyT0`
TXT	`google-site-verification=H1IpdZfbKjl3jKJ090aM0AQQ_t6tI3cV5K5ezlZ2isY,\010`
TXT	`google-site-verification=fnPn_BbCMHdxBH5NZy-3Ta2opJwm7JKKWTRmBgxgw2A`
TXT	`google-site-verification=ui9-kOSsm-wrj0xdx_hR7PmR4iHoACnko8kVBeaF3fI`
TXT	`v=spf1 include:sparkpostmail.com include:_spf.google.com include:amazonses.co...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	172.66.40.195, 172.66.43.61
		IPv6 hints	2606:4700:3108::ac42:28c3, 2606:4700:3108::ac42:2b3d
SOA	`kanye.ns.cloudflare.com`dns@cloudflare.com serial=2407766668

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784173747

rank #4025 globally
rank #2019 in the tld
WOT: SAFE (60/100)
📈 Tranco rank: #16,326

Subdomains

cdn.ccn.com

www.ccn.com

Same first word

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ccn.com.ar

ccn.la

ccn.cz

ccn.kz

ccn.com.sg

ccn.co.in

ccn.net

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ccn.tel

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ccn.fi

ccn.it

ccn.go.kr

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ccn.ren

ccn.health.nz

ccn.tv

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ccn.cl

ccn.me

ccn.mx

ccn.law

ccn.cc

ccn.ac.kr

ccn.im

ccn.ltd

ccn.church

ccn.com.br

ccn.com.ni

ccn.at

ccn.info

ccn.in

ccn.gov.eg

ccn.se

ccn.co.za

ccn.com.cn

ccn.hu

ccn.gr.jp

ccn.li

ccn.co

ccn.world

ccn.uz

ccn.com

ccn.or.kr

ccn.com.my

ccn.nl

ccn.ru

ccn.sk

ccn.asia

ccn.net.do

ccn.co.kr

ccn.bet

ccn.us

ccn.org.hk

ccn.edu.vn

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ccn.de

ccn.pl

ccn.ca

ccn.org

ccn.com.mx

ccn.com.tr

ccn.ac.uk

ccn.vn

ccn.ch

ccn.ac

Similar names

cnc.co.nz

cnc.rs

ncc.dk

cnc.tw

ncc.co

cnc.wtf

cnc.info

ncc.gov.ir

cnc.sh

ncc.co.uk

ncc.org.br

cnc.gov.do

cnc.co.cr

cnc.site

ncc.or.kr

cnc.org.in

ncc.ru

ncc.gov.bb

ncc.team

ncc.re

cnc.mobi

ncc.info

ncc.qld.edu.au

cnc.vc

ncc.org.ua

ncc.za.net

cnc.ne.jp

cnc.land

cnc.nc

cnc.gob.gt

cnc.systems

cnc.eu

ncc.me

ncc.ir

ncc.com.ph

ncc.kr

cnc.network

cnc.productions

ncc.com

cnc.it

ncc.org.in

ncc.be

ncc.co.za

cnc.com

ncc.lv

cnc.graphics

ncc.no

cnc.gob.do

cnc.eco

cnc.be

cnc.wiki

cnc.okinawa

cnc.lublin.pl

cnc.ist

ncc.gov.za

ncc.gov.ae

cnc.dk

cnc.js.org

cnc.tips

ncc.coop

cnc.kr

ncc.ca

cnc.kiwi

cnc.gl

cnc.lv

cnc.de

cnc.edu.vn

ncc.gov.ng

ncc.tel

cnc.co

ncc.cc.nm.us

cnc.tf

ncc.at

ncc.gov.tw

ncc.com.mx

ncc.tj

cnc.info.pl

cnc.business

cnc.bayern

cnc.ac.cn

cnc.pt

cnc.bet

DNS History

44 records (11 active, 33 former)

○NSbeth.ns.cloudflare.com2018-02-19 → 2021-04-17 · 5 obs

○ 2017-09-22 11:58:58
● 2018-02-19 08:28:22
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○NSbuy.internettraffic.com2015-08-17 → 2016-08-27 · 4 obs

● 2015-08-17 05:45:28
● 2016-08-27 18:14:10
○ 2016-09-21 15:53:42
○ 2026-07-16 03:56:22

●NSkanye.ns.cloudflare.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

○NSkip.ns.cloudflare.com2018-02-19 → 2021-04-17 · 5 obs

○ 2017-09-22 11:58:58
● 2018-02-19 08:28:22
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○NSns1.uniregistrymarket.link2016-09-21 → 2017-09-18 · 5 obs

○ 2016-08-27 18:14:10
● 2016-09-21 15:53:42
● 2017-09-18 06:52:16
○ 2017-09-22 11:58:58
○ 2026-07-16 03:56:22

○NSns2.uniregistrymarket.link2016-09-21 → 2017-09-18 · 5 obs

○ 2016-08-27 18:14:10
● 2016-09-21 15:53:42
● 2017-09-18 06:52:16
○ 2017-09-22 11:58:58
○ 2026-07-16 03:56:22

○NSns61.domaincontrol.com2017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○NSns62.domaincontrol.com2017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○NSsell.internettraffic.com2015-08-17 → 2016-08-27 · 4 obs

● 2015-08-17 05:45:28
● 2016-08-27 18:14:10
○ 2016-09-21 15:53:42
○ 2026-07-16 03:56:22

●NSzoe.ns.cloudflare.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●MXaspmx.l.google.com2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

○MXccn-com.mail.protection.outlook.com2018-02-19 → 2021-04-17 · 4 obs

● 2018-02-19 08:28:22
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○A104.20.90.1062018-02-19 → 2018-02-19 · 4 obs

○ 2017-09-22 11:58:58
● 2018-02-19 08:28:22
○ 2020-02-19 14:08:46
○ 2026-07-16 03:56:22

○A104.20.91.1062018-02-19 → 2018-02-19 · 4 obs

○ 2017-09-22 11:58:58
● 2018-02-19 08:28:22
○ 2020-02-19 14:08:46
○ 2026-07-16 03:56:22

○A104.22.14.282020-02-19 → 2020-05-26 · 5 obs

○ 2018-02-19 08:28:22
● 2020-02-19 14:08:46
● 2020-05-26 22:32:10
○ 2021-04-17 19:45:02
○ 2026-07-16 03:56:22

○A104.22.15.282020-02-19 → 2020-05-26 · 5 obs

○ 2018-02-19 08:28:22
● 2020-02-19 14:08:46
● 2020-05-26 22:32:10
○ 2021-04-17 19:45:02
○ 2026-07-16 03:56:22

○A104.22.4.642021-04-17 → 2021-04-17 · 4 obs

○ 2020-05-26 22:32:10
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○A104.22.5.642021-04-17 → 2021-04-17 · 4 obs

○ 2020-05-26 22:32:10
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

●A172.66.40.1952026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●A172.66.43.612026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

○A172.67.11.242021-04-17 → 2021-04-17 · 4 obs

○ 2020-05-26 22:32:10
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○A184.168.221.162017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A184.168.221.242017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A184.168.221.272017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A184.168.221.72017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A2400:cb00:2048:1::6814:5a6a2018-02-19 → 2018-02-19 · 4 obs

○ 2017-09-22 11:58:58
● 2018-02-19 08:28:22
○ 2020-02-19 14:08:46
○ 2026-07-16 03:56:22

○A2400:cb00:2048:1::6814:5b6a2018-02-19 → 2018-02-19 · 4 obs

○ 2017-09-22 11:58:58
● 2018-02-19 08:28:22
○ 2020-02-19 14:08:46
○ 2026-07-16 03:56:22

○A2606:4700:10::6816:4402021-04-17 → 2021-04-17 · 4 obs

○ 2020-05-26 22:32:10
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○A2606:4700:10::6816:5402021-04-17 → 2021-04-17 · 4 obs

○ 2020-05-26 22:32:10
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

○A2606:4700:10::6816:e1c2020-02-19 → 2020-05-26 · 5 obs

○ 2018-02-19 08:28:22
● 2020-02-19 14:08:46
● 2020-05-26 22:32:10
○ 2021-04-17 19:45:02
○ 2026-07-16 03:56:22

○A2606:4700:10::6816:f1c2020-02-19 → 2020-05-26 · 5 obs

○ 2018-02-19 08:28:22
● 2020-02-19 14:08:46
● 2020-05-26 22:32:10
○ 2021-04-17 19:45:02
○ 2026-07-16 03:56:22

○A2606:4700:10::ac43:b182021-04-17 → 2021-04-17 · 4 obs

○ 2020-05-26 22:32:10
● 2021-04-17 19:45:02
○ 2026-02-15 21:23:48
○ 2026-07-16 03:56:22

●A2606:4700:3108::ac42:28c32026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

●A2606:4700:3108::ac42:2b3d2026-02-15 → 2026-07-16 · 3 obs

○ 2021-04-17 19:45:02
● 2026-02-15 21:23:48
● 2026-07-16 03:56:22

○A50.63.202.132017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A50.63.202.232017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A50.63.202.292017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A50.63.202.42017-09-22 → 2017-09-22 · 4 obs

○ 2017-09-18 06:52:16
● 2017-09-22 11:58:58
○ 2018-02-19 08:28:22
○ 2026-07-16 03:56:22

○A69.172.201.1532016-04-22 → 2017-09-18 · 5 obs

○ 2016-03-31 13:13:58
● 2016-04-22 21:15:52
● 2017-09-18 06:52:16
○ 2017-09-22 11:58:58
○ 2026-07-16 03:56:22

○A69.172.201.2082015-08-17 → 2016-03-31 · 4 obs

● 2015-08-17 05:45:28
● 2016-03-31 13:13:58
○ 2016-04-22 21:15:52
○ 2026-07-16 03:56:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
ccn.com	zoe.ns.cloudflare.com, kanye.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.149

NS records: zoe.ns.cloudflare.com, kanye.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ccn.com (unsigned zone)

⏱️ Timing

Total: 139ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.40.195, 172.66.43.61`
AAAA	2	`2606:4700:3108::ac42:28c3, 2606:4700:3108::ac42:2b3d`
NS	2	`kanye.ns.cloudflare.com, zoe.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	14	`1gxczmtzlg5mvfb46f67zh35gy8cvcdz, MS=ms24639430...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kanye.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (zoe.ns.cloudflare.com, zoe.ns.cloudflare.com, zoe.ns.cloudflare.com...)

Analysis

Hierarchy

cdn.ccn.com and www.ccn.com are both subdomains of ccn.com.

IP Addresses

ccn.com directs to four IP numbers, which are 172.66.40.195, 172.66.43.61, 2606:4700:3108::ac42:28c3 and 2606:4700:3108::ac42:2b3d.

tae1.westend.com, decix.westend.com, agentimagex.com and two other host names share IP numbers with ccn.com.

Name Servers

The NS records for ccn.com delegate to kanye.ns.cloudflare.com and zoe.ns.cloudflare.com.

ccn.com uses the same name servers as several other domains — among them butterballrecipes.com, find.co, vongbigiare.vn and two more.

At least some of ccn.com's name servers are shared with other domains, for example openkuba.ru, yuanqing086.workers.dev, 998site.com and two more.

These name servers tend to be deployed in combination with the name servers aiden.ns.cloudflare.com and khloe.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

kanye.ns.cloudflare.com maps to 108.162.193.189, 172.64.33.189, 173.245.59.189 and 3 additional IP addresses.

zoe.ns.cloudflare.com maps to 108.162.192.149, 172.64.32.149, 173.245.58.149 and 3 additional IP addresses.

Mail Servers

Five mail servers handle ccn.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

ccn.com has at least partial mail server overlap with other domains such as martinussen.org, ns500821.ns500841.ns500821.ns500841.ns500794.ns500841.ns500794.ns500794.ns500821.ns500794.ns500821.ns500821.ns500795.ns500790.ns500795.lustypartnersfinder.com, ismail.net and two more.

These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Hostnames that resolve to two IP addresses:

The A records for aspmx.l.google.com return 192.178.155.26 and 2607:f8b0:4004:c23::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.26 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1a.

The A records for alt4.aspmx.l.google.com return 172.253.157.26 and 2a00:1450:400c:c23::1a.