singleton.solutions - dns.ninja

`singleton.solutions`

DNSSEC	⚠️ Not signed
A	3.171.38.31^{🇺🇸 Amazon3.171.36.0/22}
		PTR	`server-3-171-38-31.iad61.r.cloudfront.net`
A	3.171.38.42^{🇺🇸 Amazon3.171.36.0/22}
A	3.171.38.62^{🇺🇸 Amazon3.171.36.0/22}
A	3.171.38.80^{🇺🇸 Amazon3.171.36.0/22}
NS	`ns-2007.awsdns-58.co.uk` ⭐
		A	2600:9000:5307:d700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-2007.awsdns-58.co.uk`
		A	205.251.199.215^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-2007.awsdns-58.co.uk`
NS	`ns-1298.awsdns-34.org`
		A	2600:9000:5305:1200::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1298.awsdns-34.org`
		A	205.251.197.18^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1298.awsdns-34.org`
NS	`ns-453.awsdns-56.com`
		A	2600:9000:5301:c500::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-453.awsdns-56.com`
		A	205.251.193.197^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-453.awsdns-56.com`
NS	`ns-841.awsdns-41.net`
		A	2600:9000:5303:4900::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-841.awsdns-41.net`
		A	205.251.195.73^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-841.awsdns-41.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 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`⁽²⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		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`
TXT	`google-site-verification=oTVP80ZEuEkfKEtgTpZ-qIQZa1TX9vjeD3BzmX99eDk`
TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFnLoGWp+6Q6VG+jo2v0d...`
TXT	`v=spf1 include:_spf.google.com include:amazonses.com ~all`
SOA	`ns-2007.awsdns-58.co.uk`awsdns-hostmaster@amazon.com serial=1

`solutions`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.solutions` ⭐
	NS	`v0n1.nic.solutions`
	NS	`v0n2.nic.solutions`
	NS	`v0n3.nic.solutions`
	NS	`v2n0.nic.solutions`
	NS	`v2n1.nic.solutions`
	SOA	`v0n0.nic.solutions`hostmaster@donuts.email serial=1785930005

🔒 HSTS Preload (+subdomains)

Same first word

Similar names

DNS History

47 records (13 active, 34 former)

●NSns-1298.awsdns-34.org2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●NSns-2007.awsdns-58.co.uk2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●NSns-453.awsdns-56.com2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●NSns-841.awsdns-41.net2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●MXalt1.aspmx.l.google.com2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●MXalt2.aspmx.l.google.com2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●MXaspmx.l.google.com2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●MXaspmx2.googlemail.com2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

●MXaspmx3.googlemail.com2016-12-11 → 2026-08-05 · 2 obs

● 2016-12-11 00:40:34
● 2026-08-05 11:58:10

○A13.248.243.52026-03-23 → 2026-05-17 · 5 obs

○ 2017-10-24 13:54:20
● 2026-03-23 20:27:00
● 2026-05-17 18:54:14
○ 2026-06-17 00:32:08
○ 2026-08-05 11:58:10

○A13.249.126.232026-07-04 → 2026-08-01 · 30 obs

○ 2026-07-03 19:38:24
● 2026-07-04 15:43:16
○ 2026-07-04 17:23:48
● 2026-07-05 01:21:58
○ 2026-07-05 03:46:42
● 2026-07-07 20:44:46
○ 2026-07-08 11:04:20
● 2026-07-08 21:23:46
○ 2026-07-09 02:41:18
● 2026-07-10 00:44:22
○ 2026-07-10 01:43:20
● 2026-07-11 01:40:54
○ 2026-07-11 03:11:30
● 2026-07-20 06:44:18
○ 2026-07-20 07:39:54
● 2026-07-21 01:45:20
○ 2026-07-21 15:43:44
● 2026-07-21 17:10:58
○ 2026-07-22 03:03:26
● 2026-07-23 12:57:34
○ 2026-07-24 07:16:12
● 2026-07-30 02:19:20
○ 2026-07-30 06:35:26
● 2026-07-31 13:07:22
○ 2026-07-31 16:00:28
● 2026-08-01 03:19:24
○ 2026-08-01 16:51:14
● 2026-08-01 18:07:54
○ 2026-08-03 00:45:46
○ 2026-08-05 11:58:10

○A13.249.126.352026-07-04 → 2026-08-01 · 30 obs

○A13.249.126.632026-07-04 → 2026-08-01 · 30 obs

○A13.249.126.912026-07-04 → 2026-08-01 · 30 obs

○A13.32.179.1092026-06-22 → 2026-07-30 · 28 obs

○ 2026-06-22 02:17:48
● 2026-06-22 12:44:50
○ 2026-06-22 18:19:02
● 2026-06-22 23:21:50
○ 2026-06-23 00:48:28
● 2026-06-23 16:11:56
○ 2026-06-23 18:16:00
● 2026-06-24 00:55:22
○ 2026-06-24 01:38:10
● 2026-06-24 03:03:32
○ 2026-06-24 04:39:12
● 2026-06-26 07:42:36
○ 2026-06-26 08:13:10
● 2026-06-27 02:36:26
○ 2026-06-27 16:24:46
● 2026-06-29 18:10:40
○ 2026-06-30 00:58:36
● 2026-07-02 13:19:46
○ 2026-07-02 13:51:12
● 2026-07-28 06:25:36
○ 2026-07-28 10:12:30
● 2026-07-28 11:11:34
○ 2026-07-29 06:14:16
● 2026-07-29 06:48:50
○ 2026-07-30 02:19:20
● 2026-07-30 11:36:36
○ 2026-07-31 01:18:38
○ 2026-08-05 11:58:10

○A13.32.179.162026-06-22 → 2026-07-30 · 28 obs

○A13.32.179.202026-06-22 → 2026-07-30 · 28 obs

○A13.32.179.682026-06-22 → 2026-07-30 · 28 obs

○A18.238.4.1222026-07-12 → 2026-07-31 · 42 obs

○ 2026-07-12 16:53:02
● 2026-07-12 21:29:56
○ 2026-07-13 04:56:02
● 2026-07-13 16:30:10
○ 2026-07-13 17:09:36
● 2026-07-13 22:32:50
○ 2026-07-14 00:50:34
● 2026-07-15 04:29:22
○ 2026-07-15 06:23:42
● 2026-07-16 12:08:04
○ 2026-07-16 13:04:34
● 2026-07-16 22:33:34
○ 2026-07-17 05:13:58
● 2026-07-18 10:33:24
○ 2026-07-18 11:28:44
● 2026-07-18 18:08:26
○ 2026-07-18 19:54:42
● 2026-07-19 06:49:34
○ 2026-07-19 13:03:34
● 2026-07-19 22:39:56
○ 2026-07-20 00:13:18
● 2026-07-20 10:38:28
○ 2026-07-20 12:57:48
● 2026-07-20 21:43:02
○ 2026-07-21 01:45:20
● 2026-07-21 15:43:44
○ 2026-07-21 17:10:58
● 2026-07-27 04:50:46
○ 2026-07-27 06:57:40
● 2026-07-27 07:43:46
○ 2026-07-27 11:30:54
● 2026-07-27 16:56:16
○ 2026-07-27 17:49:58
● 2026-07-28 10:12:30
○ 2026-07-28 11:11:34
● 2026-07-29 06:14:16
○ 2026-07-29 06:48:50
● 2026-07-30 06:35:26
○ 2026-07-30 11:36:36
● 2026-07-31 01:18:38
○ 2026-07-31 04:02:44
○ 2026-08-05 11:58:10

○A18.238.4.532026-07-12 → 2026-07-31 · 42 obs

○A18.238.4.82026-07-12 → 2026-07-31 · 42 obs

○A18.238.4.972026-07-12 → 2026-07-31 · 42 obs

○A3.167.163.192026-07-01 → 2026-07-02 · 6 obs

○ 2026-06-30 23:40:28
● 2026-07-01 09:07:12
○ 2026-07-01 15:02:36
● 2026-07-02 13:51:12
○ 2026-07-02 21:13:00
○ 2026-08-05 11:58:10

○A3.167.163.302026-07-01 → 2026-07-02 · 6 obs

○ 2026-06-30 23:40:28
● 2026-07-01 09:07:12
○ 2026-07-01 15:02:36
● 2026-07-02 13:51:12
○ 2026-07-02 21:13:00
○ 2026-08-05 11:58:10

○A3.167.163.452026-07-01 → 2026-07-02 · 6 obs

○ 2026-06-30 23:40:28
● 2026-07-01 09:07:12
○ 2026-07-01 15:02:36
● 2026-07-02 13:51:12
○ 2026-07-02 21:13:00
○ 2026-08-05 11:58:10

○A3.167.163.562026-07-01 → 2026-07-02 · 6 obs

○ 2026-06-30 23:40:28
● 2026-07-01 09:07:12
○ 2026-07-01 15:02:36
● 2026-07-02 13:51:12
○ 2026-07-02 21:13:00
○ 2026-08-05 11:58:10

●A3.171.38.312026-06-17 → 2026-08-05 · 36 obs

○ 2026-05-17 18:54:14
● 2026-06-17 00:32:08
○ 2026-06-17 12:09:32
○ 2026-06-17 13:26:50
● 2026-06-20 00:12:54
○ 2026-06-20 09:43:14
● 2026-06-21 17:55:46
○ 2026-06-21 19:13:22
● 2026-06-21 20:02:58
○ 2026-06-22 01:06:58
● 2026-06-22 02:17:48
○ 2026-06-22 12:44:50
● 2026-06-23 14:05:04
○ 2026-06-23 16:11:56
● 2026-06-23 18:16:00
○ 2026-06-24 00:55:22
● 2026-06-26 08:13:10
○ 2026-06-27 02:36:26
● 2026-07-01 16:34:58
○ 2026-07-02 13:19:46
● 2026-07-03 01:05:24
○ 2026-07-03 19:38:24
● 2026-07-09 07:34:40
○ 2026-07-09 11:25:50
● 2026-07-10 12:26:24
○ 2026-07-10 14:23:02
● 2026-07-10 22:18:46
○ 2026-07-11 01:40:54
● 2026-08-03 05:09:20
○ 2026-08-03 06:20:08
● 2026-08-03 11:06:48
○ 2026-08-04 03:14:56
● 2026-08-04 15:11:18
○ 2026-08-04 20:40:20
● 2026-08-05 11:13:32
● 2026-08-05 11:58:10

●A3.171.38.422026-06-17 → 2026-08-05 · 36 obs

●A3.171.38.622026-06-17 → 2026-08-05 · 36 obs

●A3.171.38.802026-06-17 → 2026-08-05 · 36 obs

○A52.85.154.1062026-07-12 → 2026-07-18 · 14 obs

○ 2026-07-11 03:11:30
● 2026-07-12 15:28:58
○ 2026-07-12 16:53:02
● 2026-07-13 04:56:02
○ 2026-07-13 09:08:14
● 2026-07-13 17:09:36
○ 2026-07-13 18:18:18
● 2026-07-14 00:50:34
○ 2026-07-14 10:37:30
● 2026-07-16 13:04:34
○ 2026-07-16 17:11:08
● 2026-07-18 11:28:44
○ 2026-07-18 12:07:44
○ 2026-08-05 11:58:10

○A52.85.154.1282026-07-12 → 2026-07-18 · 14 obs

○A52.85.154.632026-07-12 → 2026-07-18 · 14 obs

○A52.85.154.712026-07-12 → 2026-07-18 · 14 obs

○A54.194.3.242016-12-11 → 2017-10-24 · 4 obs

● 2016-12-11 00:40:34
● 2017-10-24 13:54:20
○ 2026-03-23 20:27:00
○ 2026-08-05 11:58:10

○A54.230.201.1252026-06-17 → 2026-06-30 · 22 obs

○ 2026-06-17 12:09:32
● 2026-06-17 13:26:50
○ 2026-06-20 00:12:54
● 2026-06-20 09:43:14
○ 2026-06-21 17:55:46
● 2026-06-21 19:13:22
○ 2026-06-21 20:02:58
● 2026-06-22 01:06:58
○ 2026-06-22 02:17:48
● 2026-06-22 18:19:02
○ 2026-06-22 23:21:50
● 2026-06-23 00:48:28
○ 2026-06-23 14:05:04
● 2026-06-24 01:38:10
○ 2026-06-24 03:03:32
● 2026-06-24 04:39:12
○ 2026-06-26 07:42:36
● 2026-06-27 16:24:46
○ 2026-06-29 18:10:40
● 2026-06-30 00:58:36
○ 2026-06-30 23:40:28
○ 2026-08-05 11:58:10

○A54.230.201.302026-06-17 → 2026-06-30 · 22 obs

○A54.230.201.772026-06-17 → 2026-06-30 · 22 obs

○A54.230.201.812026-06-17 → 2026-06-30 · 22 obs

○A99.84.252.1062026-06-17 → 2026-08-04 · 78 obs

○ 2026-06-17 00:32:08
● 2026-06-17 12:09:32
○ 2026-06-17 13:26:50
● 2026-06-30 23:40:28
○ 2026-07-01 09:07:12
● 2026-07-01 15:02:36
○ 2026-07-01 16:34:58
● 2026-07-02 21:13:00
○ 2026-07-03 01:05:24
● 2026-07-03 19:38:24
○ 2026-07-04 15:43:16
● 2026-07-04 17:23:48
○ 2026-07-05 01:21:58
● 2026-07-05 03:46:42
○ 2026-07-07 20:44:46
● 2026-07-08 11:04:20
○ 2026-07-08 21:23:46
● 2026-07-09 02:41:18
○ 2026-07-09 07:34:40
● 2026-07-09 11:25:50
○ 2026-07-10 00:44:22
● 2026-07-10 01:43:20
○ 2026-07-10 12:26:24
● 2026-07-10 14:23:02
○ 2026-07-10 22:18:46
● 2026-07-11 03:11:30
○ 2026-07-12 15:28:58
● 2026-07-12 16:53:02
○ 2026-07-12 21:29:56
● 2026-07-13 09:08:14
○ 2026-07-13 16:30:10
● 2026-07-13 18:18:18
○ 2026-07-13 22:32:50
● 2026-07-14 10:37:30
○ 2026-07-15 04:29:22
● 2026-07-15 06:23:42
○ 2026-07-16 12:08:04
● 2026-07-16 17:11:08
○ 2026-07-16 22:33:34
● 2026-07-17 05:13:58
○ 2026-07-18 10:33:24
● 2026-07-18 12:07:44
○ 2026-07-18 18:08:26
● 2026-07-18 19:54:42
○ 2026-07-19 06:49:34
● 2026-07-19 13:03:34
○ 2026-07-19 22:39:56
● 2026-07-20 00:13:18
○ 2026-07-20 06:44:18
● 2026-07-20 07:39:54
○ 2026-07-20 10:38:28
● 2026-07-20 12:57:48
○ 2026-07-20 21:43:02
● 2026-07-22 03:03:26
○ 2026-07-23 12:57:34
● 2026-07-24 07:16:12
○ 2026-07-26 14:51:38
● 2026-07-27 03:37:38
○ 2026-07-27 04:50:46
● 2026-07-27 06:57:40
○ 2026-07-27 07:43:46
● 2026-07-27 17:49:58
○ 2026-07-28 06:25:36
● 2026-07-31 04:02:44
○ 2026-07-31 13:07:22
● 2026-07-31 16:00:28
○ 2026-08-01 03:19:24
● 2026-08-01 16:51:14
○ 2026-08-01 18:07:54
● 2026-08-03 00:45:46
○ 2026-08-03 05:09:20
● 2026-08-03 06:20:08
○ 2026-08-03 11:06:48
● 2026-08-04 03:14:56
○ 2026-08-04 15:11:18
● 2026-08-04 20:40:20
○ 2026-08-05 11:13:32
○ 2026-08-05 11:58:10

○A99.84.252.312026-06-17 → 2026-08-04 · 78 obs

○A99.84.252.552026-06-17 → 2026-08-04 · 78 obs

○A99.84.252.982026-06-17 → 2026-08-04 · 78 obs

○A99.86.109.1022026-07-26 → 2026-07-27 · 6 obs

○ 2026-07-24 07:16:12
● 2026-07-26 14:51:38
○ 2026-07-27 03:37:38
● 2026-07-27 11:30:54
○ 2026-07-27 16:56:16
○ 2026-08-05 11:58:10

○A99.86.109.52026-07-26 → 2026-07-27 · 6 obs

○ 2026-07-24 07:16:12
● 2026-07-26 14:51:38
○ 2026-07-27 03:37:38
● 2026-07-27 11:30:54
○ 2026-07-27 16:56:16
○ 2026-08-05 11:58:10

○A99.86.109.522026-07-26 → 2026-07-27 · 6 obs

○ 2026-07-24 07:16:12
● 2026-07-26 14:51:38
○ 2026-07-27 03:37:38
● 2026-07-27 11:30:54
○ 2026-07-27 16:56:16
○ 2026-08-05 11:58:10

○A99.86.109.742026-07-26 → 2026-07-27 · 6 obs

○ 2026-07-24 07:16:12
● 2026-07-26 14:51:38
○ 2026-07-27 03:37:38
● 2026-07-27 11:30:54
○ 2026-07-27 16:56:16
○ 2026-08-05 11:58:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
solutions	v0n0.nic.solutions, v0n1.nic.solutions, v0n2.nic.solutions, v0n3.nic.solutions...	12 records
singleton.solutions	ns-1298.awsdns-34.org, ns-841.awsdns-41.net, ns-453.awsdns-56.com, ns-2007.awsdns-58.co.uk	-

✅ Authoritative Response

Server:205.251.199.215

NS records: ns-1298.awsdns-34.org, ns-841.awsdns-41.net, ns-453.awsdns-56.com, ns-2007.awsdns-58.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for singleton.solutions (unsigned zone)

⏱️ Timing

Total: 1206ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.38.42, 3.171.38.31...`
NS	4	`ns-1298.awsdns-34.org, ns-2007.awsdns-58.co.uk...`
MX	5	`aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...`
TXT	3	`google-site-verification=oTVP80ZEuEkfKEt, v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQ...`
SOA	1	`ns-2007.awsdns-58.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.solutions, v0n1.nic.solutions, v0n2.nic.solutions...)

Analysis

IP Addresses

singleton.solutions resolves to four IP addresses: 3.171.38.31, 3.171.38.42, 3.171.38.62 and 3.171.38.80.

primatenetablets.com, 4t-4vko.search.primatenetablets.com, www.bytrain.com and two other host names share IP numbers with singleton.solutions.

Name Servers

The authoritative name servers for singleton.solutions are ns-453.awsdns-56.com, ns-841.awsdns-41.net, ns-1298.awsdns-34.org and ns-2007.awsdns-58.co.uk.

singleton.solutions has at least partial name server overlap with other domains, such as propellerdigital.co.uk, greenflag.co.uk, djrhcbl41h30q.cloudfront.net and two others.

ns-453.awsdns-56.com, ns-841.awsdns-41.net, ns-1298.awsdns-34.org and ns-2007.awsdns-58.co.uk all point to exactly two IP numbers each: ns-453.awsdns-56.com → 205.251.193.197 and 2600:9000:5301:c500::1; ns-841.awsdns-41.net → 205.251.195.73 and 2600:9000:5303:4900::1; ns-1298.awsdns-34.org → 205.251.197.18 and 2600:9000:5305:1200::1; ns-2007.awsdns-58.co.uk → 205.251.199.215 and 2600:9000:5307:d700::1.

Mail Servers

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

singleton.solutions has at least partial mail server overlap with other domains such as ns500794.ns500821.ns500795.ns500821.ns500821.ns500821.ns500821.ns500821.ns500795.lustypartnersfinder.com, ns500759.ns500698.ns500758.ns500759.ns500735.ns500735.ns500735.ns500735.ns500698.ns500708.ns500576.ns500698.ns500576.ns500652.ns500576.trackreceptor.com, rtcdecor.com.br and two more.

These mail servers commonly co-occur with mail servers alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.

Hostnames that resolve to two IP addresses:

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

aspmx3.googlemail.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.

aspmx.l.google.com directs traffic to 172.253.122.26 and 2607:f8b0:4004:c07::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 2800:3f0:4003:c0f::1b IP addresses each.