skilljar.com - dns.ninja

skilljar.com

DNSSECโš ๏ธ Not signed
A198.202.211.1๐Ÿ‡บ๐Ÿ‡ธ CLOUDFLARESPECTRUM198.202.211.0/24 Webflow
NSns-1369.awsdns-43.org โญ
A2600:9000:5305:5900::1๐Ÿ‡บ๐Ÿ‡ธ Amazon2600:9000:5305::/48 - CloudFront
PTRns-1369.awsdns-43.org
A205.251.197.89๐Ÿ‡บ๐Ÿ‡ธ Amazon205.251.197.0/24 prefix
PTRns-1369.awsdns-43.org
NSns-1608.awsdns-09.co.uk
A2600:9000:5306:4800::1๐Ÿ‡บ๐Ÿ‡ธ Amazon2600:9000:5306::/48 - CloudFront
PTRns-1608.awsdns-09.co.uk
A205.251.198.72๐Ÿ‡บ๐Ÿ‡ธ Amazon205.251.198.0/24 prefix
PTRns-1608.awsdns-09.co.uk
NSns-222.awsdns-27.com
A2600:9000:5300:de00::1๐Ÿ‡บ๐Ÿ‡ธ Amazon2600:9000:5300::/48 - CloudFront
PTRns-222.awsdns-27.com
A205.251.192.222๐Ÿ‡บ๐Ÿ‡ธ Amazon205.251.192.0/24 prefix
PTRns-222.awsdns-27.com
NSns-996.awsdns-60.net
A2600:9000:5303:e400::1๐Ÿ‡บ๐Ÿ‡ธ Amazon2600:9000:5303::/48 - CloudFront
PTRns-996.awsdns-60.net
A205.251.195.228๐Ÿ‡บ๐Ÿ‡ธ Amazon205.251.195.0/24 prefix
PTRns-996.awsdns-60.net
MXaspmx.l.google.com โญ
A2607:f8b0:4004:c1d::1b๐Ÿ‡บ๐Ÿ‡ธ Google2607:f8b0:4004::/48
PTRww-in-f27.1e100.net
A142.250.31.26๐Ÿ‡บ๐Ÿ‡ธ Google142.250.31.0/24
PTRbj-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a๐Ÿ‡จ๐Ÿ‡ฑ Google2800:3f0:4003::/48
A108.177.123.27๐Ÿ‡บ๐Ÿ‡ธ Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a๐Ÿ‡ฎ๐Ÿ‡ช Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26๐Ÿ‡บ๐Ÿ‡ธ Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXaspmx2.googlemail.com(10)
A2800:3f0:4003:c0f::1b๐Ÿ‡จ๐Ÿ‡ฑ Google2800:3f0:4003::/48
A108.177.123.27๐Ÿ‡บ๐Ÿ‡ธ Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXaspmx3.googlemail.com(10)
A2a00:1450:400b:c02::1a๐Ÿ‡ฎ๐Ÿ‡ช Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27๐Ÿ‡บ๐Ÿ‡ธ Google172.253.116.0/24
PTRdj-in-f27.1e100.net
TXTF018492085
TXTapple-domain-verification=LTWhOhIwXFQ3kyA1
TXTatlassian-domain-verification=OTGLnoYYJqUrlu7AORAyCi9QyqIywk61XP20MkSWEk1DCyz...
TXTgoogle-site-verification=0Gg2Jf98ZFfO8OGX9GYGDHkWqsZGIjiDlGB29lSrvKs
TXTgoogle-site-verification=EHPlpAn4z1e5PjbVGCnbqI7B9O7xX73fJYWCP9LkqCc
TXTgoogle-site-verification=WWVCrh9_6OMuZUSHknR3zolcMtTu4-hdpoGIrBhK7xg
TXTgoogle-site-verification=_zHM1mIEsVpntc8lUsPMcfVxQpMLmAGGYG7_whPz3L0
TXTjamf-site-verification=9jbSyTesqxmpt5j9MM61Ew
TXTstatus-page-domain-verification=l5v5dhzqhm99
TXTv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:stspg-custome...
SOAns-1369.awsdns-43.orgawsdns-hostmaster@amazon.com serial=1

com

rank #37020 globally
rank #18190 in the tld
๐Ÿ“ˆ Tranco rank: #13,868

Subdomains

Same first word

DNS History

51 records (10 active, 41 former)

200920112013201520172019202120232025NSns-1369.awsdns-43.orgns-1608.awsdns-09.co.ukns-222.awsdns-27.comns-996.awsdns-60.netns17.domaincontrol.comns18.domaincontrol.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.commailstore1.secureserver.netsmtp.secureserver.netA198.202.211.152.218.128.1952.218.128.3152.218.144.7152.218.160.1952.218.160.3552.218.160.7152.218.200.22752.218.200.4352.218.201.16352.218.201.23552.218.208.13152.218.208.7554.231.160.354.231.162.1154.231.162.16354.231.162.18754.231.162.1954.231.168.10354.231.168.17154.231.168.18754.231.168.20754.231.168.3954.231.168.4754.231.169.2754.231.176.11954.231.176.13554.231.176.19954.231.176.21954.231.176.354.231.177.1954.231.184.11954.231.184.19154.231.184.22354.231.184.23954.231.184.354.231.185.2368.178.232.100
โ—NSns-1369.awsdns-43.org2015-06-14 โ†’ 2026-08-06 ยท 3 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2026-08-06 23:39:16
โ—NSns-1608.awsdns-09.co.uk2015-06-14 โ†’ 2026-08-06 ยท 3 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2026-08-06 23:39:16
โ—NSns-222.awsdns-27.com2015-06-14 โ†’ 2026-08-06 ยท 3 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2026-08-06 23:39:16
โ—NSns-996.awsdns-60.net2015-06-14 โ†’ 2026-08-06 ยท 3 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2026-08-06 23:39:16
โ—‹NSns17.domaincontrol.com2008-03-14 โ†’ 2008-03-14 ยท 3 obs
โ— 2008-03-14 03:37:34
โ—‹ 2015-06-14 10:33:58
โ—‹ 2026-08-06 23:39:16
โ—‹NSns18.domaincontrol.com2008-03-14 โ†’ 2008-03-14 ยท 3 obs
โ— 2008-03-14 03:37:34
โ—‹ 2015-06-14 10:33:58
โ—‹ 2026-08-06 23:39:16
โ—MXalt1.aspmx.l.google.com2015-06-14 โ†’ 2026-08-06 ยท 6 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2018-04-01 22:05:26
โ—‹ 2026-06-23 21:21:22
โ— 2026-06-26 08:53:16
โ— 2026-08-06 23:39:16
โ—MXalt2.aspmx.l.google.com2015-06-14 โ†’ 2026-08-06 ยท 6 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2018-04-01 22:05:26
โ—‹ 2026-06-23 21:21:22
โ— 2026-06-26 08:53:16
โ— 2026-08-06 23:39:16
โ—MXaspmx.l.google.com2015-06-14 โ†’ 2026-08-06 ยท 6 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2018-04-01 22:05:26
โ—‹ 2026-06-23 21:21:22
โ— 2026-06-26 08:53:16
โ— 2026-08-06 23:39:16
โ—MXaspmx2.googlemail.com2015-06-14 โ†’ 2026-08-06 ยท 6 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2018-04-01 22:05:26
โ—‹ 2026-06-23 21:21:22
โ— 2026-06-26 08:53:16
โ— 2026-08-06 23:39:16
โ—MXaspmx3.googlemail.com2015-06-14 โ†’ 2026-08-06 ยท 6 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ— 2018-04-01 22:05:26
โ—‹ 2026-06-23 21:21:22
โ— 2026-06-26 08:53:16
โ— 2026-08-06 23:39:16
โ—‹MXmailstore1.secureserver.net2008-03-14 โ†’ 2008-03-14 ยท 3 obs
โ— 2008-03-14 03:37:34
โ—‹ 2015-06-14 10:33:58
โ—‹ 2026-08-06 23:39:16
โ—‹MXsmtp.secureserver.net2008-03-14 โ†’ 2008-03-14 ยท 3 obs
โ— 2008-03-14 03:37:34
โ—‹ 2015-06-14 10:33:58
โ—‹ 2026-08-06 23:39:16
โ—A198.202.211.12026-02-17 โ†’ 2026-08-06 ยท 5 obs
โ—‹ 2018-04-01 22:05:26
โ— 2026-02-17 16:45:04
โ—‹ 2026-06-23 21:21:22
โ— 2026-06-26 08:53:16
โ— 2026-08-06 23:39:16
โ—‹A52.218.128.192017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.128.312017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.144.712017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.160.192017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.160.352017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.160.712018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.200.2272018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.200.432017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.201.1632018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.201.2352018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.208.1312018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A52.218.208.752017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.160.32015-10-28 โ†’ 2015-10-28 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-10-28 12:02:30
โ—‹ 2015-10-31 07:34:22
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.162.112015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.162.1632015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2015-10-28 12:02:30
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.162.1872015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.162.192015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.168.1032015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.168.1712016-01-28 โ†’ 2016-01-28 ยท 4 obs
โ—‹ 2015-11-11 22:26:40
โ— 2016-01-28 11:42:10
โ—‹ 2016-04-25 09:25:32
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.168.1872018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.168.2072016-09-14 โ†’ 2016-09-14 ยท 4 obs
โ—‹ 2016-08-15 18:30:40
โ— 2016-09-14 23:17:28
โ—‹ 2016-09-25 22:27:56
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.168.392015-11-11 โ†’ 2015-11-11 ยท 4 obs
โ—‹ 2015-10-31 07:34:22
โ— 2015-11-11 22:26:40
โ—‹ 2016-01-28 11:42:10
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.168.472015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.169.272017-06-09 โ†’ 2017-06-09 ยท 4 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ—‹ 2018-04-01 22:05:26
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.176.1192015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.176.1352015-10-31 โ†’ 2015-10-31 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-10-31 07:34:22
โ—‹ 2015-11-11 22:26:40
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.176.1992017-06-09 โ†’ 2018-04-01 ยท 5 obs
โ—‹ 2016-09-25 22:27:56
โ— 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.176.2192018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.176.32015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.177.192018-04-01 โ†’ 2018-04-01 ยท 4 obs
โ—‹ 2017-06-09 20:17:04
โ— 2018-04-01 22:05:26
โ—‹ 2026-02-17 16:45:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.184.1192015-06-14 โ†’ 2015-06-14 ยท 4 obs
โ—‹ 2008-03-14 03:37:34
โ— 2015-06-14 10:33:58
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.184.1912016-07-24 โ†’ 2016-07-24 ยท 4 obs
โ—‹ 2016-04-25 09:25:32
โ— 2016-07-24 08:26:02
โ—‹ 2016-08-07 13:45:58
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.184.2232016-04-25 โ†’ 2016-04-25 ยท 4 obs
โ—‹ 2016-01-28 11:42:10
โ— 2016-04-25 09:25:32
โ—‹ 2016-07-24 08:26:02
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.184.2392016-09-25 โ†’ 2016-09-25 ยท 4 obs
โ—‹ 2016-09-14 23:17:28
โ— 2016-09-25 22:27:56
โ—‹ 2017-06-09 20:17:04
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.184.32016-08-07 โ†’ 2016-08-07 ยท 4 obs
โ—‹ 2016-07-24 08:26:02
โ— 2016-08-07 13:45:58
โ—‹ 2016-08-15 18:30:40
โ—‹ 2026-08-06 23:39:16
โ—‹A54.231.185.232016-08-15 โ†’ 2016-08-15 ยท 4 obs
โ—‹ 2016-08-07 13:45:58
โ— 2016-08-15 18:30:40
โ—‹ 2016-09-14 23:17:28
โ—‹ 2026-08-06 23:39:16
โ—‹A68.178.232.1002008-03-14 โ†’ 2008-03-14 ยท 3 obs
โ— 2008-03-14 03:37:34
โ—‹ 2015-06-14 10:33:58
โ—‹ 2026-08-06 23:39:16

๐Ÿ” DNS Trace

๐Ÿ“‹ Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...-
skilljar.comns-222.awsdns-27.com, ns-996.awsdns-60.net, ns-1608.awsdns-09.co.uk, ns-1369.awsdns-43.org2 records

โœ… Authoritative Response

Server:205.251.195.228

NS records: ns-222.awsdns-27.com, ns-996.awsdns-60.net, ns-1608.awsdns-09.co.uk, ns-1369.awsdns-43.org

๐Ÿ”’ DNSSEC Status

โš ๏ธ Insecure (no DNSSEC)

No DS record for skilljar.com (unsigned zone)

โฑ๏ธ Timing

Total: 414ms | Queries: -

๐Ÿ“„ Records

TypeCountSample Data
A1198.202.211.1
NS4ns-1369.awsdns-43.org, ns-1608.awsdns-09.co.uk...
MX5aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...
TXT10F018492085, apple-domain-verification=LTWhOhIwXFQ3ky...
SOA1ns-1369.awsdns-43.org awsdns-hostmaster.

๐Ÿ“Œ Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-222.awsdns-27.com, ns-222.awsdns-27.com)

Analysis

Hierarchy

skilljar.com is the parent domain of accounts.skilljar.com, netskopeacademy.skilljar.com, learn.skilljar.com, ssl-learningcloudlock.skilljar.com, ssl-academyasana.skilljar.com and a few other host names.

IP Addresses

skilljar.com points to a single IP number: 198.202.211.1.

Additional host names โ€” echios.com, proposalenvy.com, autopix.no and two others โ€” share IP numbers with skilljar.com.

Name Servers

skilljar.com has four authoritative name servers: ns-222.awsdns-27.com, ns-996.awsdns-60.net, ns-1369.awsdns-43.org and ns-1608.awsdns-09.co.uk.

skilljar.com shares at least some of its name servers with other domains, including soaheeme.net, landelfm.com.br, gerbergolfleague.org and two others.

The host names ns-222.awsdns-27.com, ns-996.awsdns-60.net, ns-1369.awsdns-43.org and ns-1608.awsdns-09.co.uk each resolve to two IP addresses: ns-222.awsdns-27.com resolves to 205.251.192.222 and 2600:9000:5300:de00::1; ns-996.awsdns-60.net resolves to 205.251.195.228 and 2600:9000:5303:e400::1; ns-1369.awsdns-43.org resolves to 205.251.197.89 and 2600:9000:5305:5900::1; ns-1608.awsdns-09.co.uk resolves to 205.251.198.72 and 2600:9000:5306:4800::1.

Mail Servers

skilljar.com is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

skilljar.com shares mail servers โ€” at least in part โ€” with other domains, including eslclub.jp, 21bonest.com, ns500671.ns500754.ns500742.ns500704.ns500671.ns500688.ns500678.ns500678.ns500688.ns500666.tenderladiesbz.com and two others.

These mail servers are frequently used alongside mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

aspmx3.googlemail.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com resolves to 142.250.31.26 and 2607:f8b0:4004:c1d::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

The host names aspmx2.googlemail.com and alt1.aspmx.l.google.com both resolve to 108.177.123.27 IP addresses.

The host names aspmx3.googlemail.com and alt2.aspmx.l.google.com both resolve to 2a00:1450:400b:c02::1a IP addresses.