workingbits.io - dns.ninja

`workingbits.io`

DNSSEC	⚠️ Not signed
A	99.86.12.11
		PTR	`server-99-86-12-11.lhr95.r.cloudfront.net`
A	99.86.12.88
A	99.86.12.112
A	99.86.12.113
NS	`ns-349.awsdns-43.com` ⭐
		A	2600:9000:5301:5d00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-349.awsdns-43.com`
		A	205.251.193.93^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-349.awsdns-43.com`
NS	`ns-1229.awsdns-25.org`
		A	2600:9000:5304:cd00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1229.awsdns-25.org`
		A	205.251.196.205^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1229.awsdns-25.org`
NS	`ns-1624.awsdns-11.co.uk`
		A	2600:9000:5306:5800::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1624.awsdns-11.co.uk`
		A	205.251.198.88^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1624.awsdns-11.co.uk`
NS	`ns-921.awsdns-51.net`
		A	2600:9000:5303:9900::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-921.awsdns-51.net`
		A	205.251.195.153^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-921.awsdns-51.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=gCu0Zp-rPkdeTFoYtKXze-snnq93VX06DbXfpCAJIm4`
SOA	`ns-349.awsdns-43.com`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1782297124

Same first word

workingbits.de

workingbits.net

workingbits.io

workingbits.com

DNS History

89 records (13 active, 76 former)

●NSns-1229.awsdns-25.org2026-02-17 → 2026-06-24 · 2 obs

● 2026-02-17 01:16:54
● 2026-06-24 10:43:02

●NSns-1624.awsdns-11.co.uk2026-02-17 → 2026-06-24 · 2 obs

● 2026-02-17 01:16:54
● 2026-06-24 10:43:02

●NSns-349.awsdns-43.com2026-02-17 → 2026-06-24 · 2 obs

● 2026-02-17 01:16:54
● 2026-06-24 10:43:02

●NSns-921.awsdns-51.net2026-02-17 → 2026-06-24 · 2 obs

● 2026-02-17 01:16:54
● 2026-06-24 10:43:02

●MXalt1.aspmx.l.google.com2026-02-17 → 2026-06-24 · 5 obs

● 2026-02-17 01:16:54
● 2026-06-13 00:22:54
○ 2026-06-13 02:19:00
● 2026-06-13 03:18:20
● 2026-06-24 10:43:02

●MXalt2.aspmx.l.google.com2026-02-17 → 2026-06-24 · 5 obs

● 2026-02-17 01:16:54
● 2026-06-13 00:22:54
○ 2026-06-13 02:19:00
● 2026-06-13 03:18:20
● 2026-06-24 10:43:02

●MXalt3.aspmx.l.google.com2026-02-17 → 2026-06-24 · 5 obs

● 2026-02-17 01:16:54
● 2026-06-13 00:22:54
○ 2026-06-13 02:19:00
● 2026-06-13 03:18:20
● 2026-06-24 10:43:02

●MXalt4.aspmx.l.google.com2026-02-17 → 2026-06-24 · 5 obs

● 2026-02-17 01:16:54
● 2026-06-13 00:22:54
○ 2026-06-13 02:19:00
● 2026-06-13 03:18:20
● 2026-06-24 10:43:02

●MXaspmx.l.google.com2026-02-17 → 2026-06-24 · 5 obs

● 2026-02-17 01:16:54
● 2026-06-13 00:22:54
○ 2026-06-13 02:19:00
● 2026-06-13 03:18:20
● 2026-06-24 10:43:02

○A13.224.95.1102026-02-20 → 2026-04-23 · 18 obs

○ 2026-02-18 04:09:36
● 2026-02-20 02:14:26
○ 2026-02-22 20:03:26
○ 2026-02-23 20:00:22
● 2026-02-24 00:12:20
● 2026-03-06 18:41:10
○ 2026-03-12 09:55:06
● 2026-03-14 04:01:36
● 2026-03-18 20:21:12
○ 2026-03-18 22:53:10
○ 2026-03-25 20:19:58
● 2026-03-25 23:41:42
● 2026-04-19 18:57:40
○ 2026-04-21 08:43:14
● 2026-04-21 10:55:22
● 2026-04-23 01:20:00
○ 2026-04-23 16:05:46
○ 2026-06-24 10:43:02

○A13.224.95.1212026-02-20 → 2026-04-23 · 18 obs

○A13.224.95.1242026-02-20 → 2026-04-23 · 18 obs

○A13.224.95.1252026-02-20 → 2026-04-23 · 18 obs

○A13.33.109.1042026-04-21 → 2026-05-21 · 20 obs

○ 2026-04-19 18:57:40
● 2026-04-21 08:43:14
○ 2026-04-21 10:55:22
○ 2026-04-26 09:31:58
● 2026-04-26 14:27:08
○ 2026-04-26 15:31:06
○ 2026-05-03 10:18:46
● 2026-05-04 03:28:38
○ 2026-05-04 04:20:46
○ 2026-05-04 21:15:54
● 2026-05-05 14:09:22
○ 2026-05-05 16:17:14
○ 2026-05-08 22:53:40
● 2026-05-09 23:50:38
○ 2026-05-10 07:34:18
○ 2026-05-21 01:19:08
● 2026-05-21 03:03:48
● 2026-05-21 04:30:52
○ 2026-05-21 08:14:50
○ 2026-06-24 10:43:02

○A13.33.109.132026-04-21 → 2026-05-21 · 20 obs

○A13.33.109.172026-04-21 → 2026-05-21 · 20 obs

○A13.33.109.272026-04-21 → 2026-05-21 · 20 obs

○A13.33.82.1012026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-05 16:17:14
● 2026-05-08 02:15:38
○ 2026-05-08 05:37:38
○ 2026-06-24 10:43:02

○A13.33.82.1122026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-05 16:17:14
● 2026-05-08 02:15:38
○ 2026-05-08 05:37:38
○ 2026-06-24 10:43:02

○A13.33.82.582026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-05 16:17:14
● 2026-05-08 02:15:38
○ 2026-05-08 05:37:38
○ 2026-06-24 10:43:02

○A13.33.82.602026-05-08 → 2026-05-08 · 4 obs

○ 2026-05-05 16:17:14
● 2026-05-08 02:15:38
○ 2026-05-08 05:37:38
○ 2026-06-24 10:43:02

○A13.35.107.1132026-06-12 → 2026-06-12 · 4 obs

○ 2026-06-12 16:12:02
● 2026-06-12 20:35:50
○ 2026-06-12 23:22:42
○ 2026-06-24 10:43:02

○A13.35.107.202026-06-12 → 2026-06-12 · 4 obs

○ 2026-06-12 16:12:02
● 2026-06-12 20:35:50
○ 2026-06-12 23:22:42
○ 2026-06-24 10:43:02

○A13.35.107.622026-06-12 → 2026-06-12 · 4 obs

○ 2026-06-12 16:12:02
● 2026-06-12 20:35:50
○ 2026-06-12 23:22:42
○ 2026-06-24 10:43:02

○A13.35.107.862026-06-12 → 2026-06-12 · 4 obs

○ 2026-06-12 16:12:02
● 2026-06-12 20:35:50
○ 2026-06-12 23:22:42
○ 2026-06-24 10:43:02

○A18.155.21.1022026-04-03 → 2026-06-15 · 18 obs

○ 2026-03-31 03:00:20
● 2026-04-03 12:40:54
○ 2026-04-03 16:09:54
○ 2026-04-10 23:51:02
● 2026-04-11 13:25:42
○ 2026-04-11 23:46:30
○ 2026-05-29 23:17:32
● 2026-05-30 15:30:08
● 2026-06-01 04:28:42
○ 2026-06-01 15:32:08
○ 2026-06-02 12:45:52
● 2026-06-02 15:20:58
● 2026-06-04 19:05:04
○ 2026-06-04 21:13:44
○ 2026-06-15 12:17:40
● 2026-06-15 13:48:04
○ 2026-06-15 15:20:16
○ 2026-06-24 10:43:02

○A18.155.21.1272026-04-03 → 2026-06-15 · 18 obs

○A18.155.21.502026-04-03 → 2026-06-15 · 18 obs

○A18.155.21.542026-04-03 → 2026-06-15 · 18 obs

○A18.161.205.1052026-05-10 → 2026-06-02 · 20 obs

○ 2026-05-09 23:50:38
● 2026-05-10 01:02:24
● 2026-05-10 07:34:18
○ 2026-05-10 14:16:14
○ 2026-05-10 20:50:00
● 2026-05-11 04:18:00
○ 2026-05-11 05:34:20
○ 2026-05-17 19:45:22
● 2026-05-18 00:46:44
○ 2026-05-18 03:03:44
○ 2026-05-28 15:29:26
● 2026-05-28 21:16:22
○ 2026-05-29 00:38:46
○ 2026-06-01 16:09:08
● 2026-06-01 19:31:02
○ 2026-06-01 23:52:48
○ 2026-06-02 01:41:50
● 2026-06-02 02:30:30
○ 2026-06-02 07:42:08
○ 2026-06-24 10:43:02

○A18.161.205.1062026-05-10 → 2026-06-02 · 20 obs

○A18.161.205.402026-05-10 → 2026-06-02 · 20 obs

○A18.161.205.492026-05-10 → 2026-06-02 · 20 obs

○A18.239.83.172026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 00:13:04
● 2026-03-23 23:30:46
○ 2026-03-24 08:31:58
○ 2026-06-24 10:43:02

○A18.239.83.252026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 00:13:04
● 2026-03-23 23:30:46
○ 2026-03-24 08:31:58
○ 2026-06-24 10:43:02

○A18.239.83.352026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 00:13:04
● 2026-03-23 23:30:46
○ 2026-03-24 08:31:58
○ 2026-06-24 10:43:02

○A18.239.83.892026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 00:13:04
● 2026-03-23 23:30:46
○ 2026-03-24 08:31:58
○ 2026-06-24 10:43:02

○A18.65.3.362026-02-17 → 2026-03-20 · 19 obs

● 2026-02-17 01:16:54
● 2026-02-18 04:09:36
○ 2026-02-20 02:14:26
● 2026-02-22 20:03:26
● 2026-02-23 20:00:22
○ 2026-02-24 00:12:20
● 2026-02-25 02:09:40
○ 2026-02-25 21:15:20
○ 2026-03-06 18:41:10
● 2026-03-12 09:55:06
○ 2026-03-14 04:01:36
○ 2026-03-15 07:09:10
● 2026-03-16 08:05:42
○ 2026-03-17 00:16:34
○ 2026-03-18 20:21:12
● 2026-03-18 22:53:10
● 2026-03-20 08:41:38
○ 2026-03-20 18:15:18
○ 2026-06-24 10:43:02

○A18.65.3.612026-02-17 → 2026-03-20 · 19 obs

○A18.65.3.622026-02-17 → 2026-03-20 · 19 obs

○A18.65.3.932026-02-17 → 2026-03-20 · 19 obs

○A3.160.119.1162026-03-30 → 2026-03-30 · 4 obs

○ 2026-03-25 23:41:42
● 2026-03-30 20:01:08
○ 2026-03-31 03:00:20
○ 2026-06-24 10:43:02

○A3.160.119.1212026-03-30 → 2026-03-30 · 4 obs

○ 2026-03-25 23:41:42
● 2026-03-30 20:01:08
○ 2026-03-31 03:00:20
○ 2026-06-24 10:43:02

○A3.160.119.432026-03-30 → 2026-03-30 · 4 obs

○ 2026-03-25 23:41:42
● 2026-03-30 20:01:08
○ 2026-03-31 03:00:20
○ 2026-06-24 10:43:02

○A3.160.119.572026-03-30 → 2026-03-30 · 4 obs

○ 2026-03-25 23:41:42
● 2026-03-30 20:01:08
○ 2026-03-31 03:00:20
○ 2026-06-24 10:43:02

○A3.162.163.22026-05-19 → 2026-06-08 · 18 obs

○ 2026-05-19 01:36:18
● 2026-05-19 10:27:02
○ 2026-05-19 12:10:36
○ 2026-05-19 15:31:42
● 2026-05-19 16:28:46
○ 2026-05-20 13:23:44
● 2026-05-20 17:20:50
● 2026-05-24 05:17:58
○ 2026-05-24 14:48:36
○ 2026-06-04 19:05:04
● 2026-06-04 21:13:44
● 2026-06-06 12:19:20
○ 2026-06-07 07:24:40
● 2026-06-08 02:56:28
○ 2026-06-08 05:12:42
● 2026-06-08 07:40:20
○ 2026-06-08 09:47:24
○ 2026-06-24 10:43:02

○A3.162.163.42026-05-19 → 2026-06-08 · 18 obs

○A3.162.163.982026-05-19 → 2026-06-08 · 18 obs

○A3.162.163.992026-05-19 → 2026-06-08 · 18 obs

○A3.167.138.102026-05-30 → 2026-05-30 · 5 obs

○ 2026-05-29 23:17:32
● 2026-05-30 07:33:52
● 2026-05-30 09:31:22
○ 2026-05-30 15:30:08
○ 2026-06-24 10:43:02

○A3.167.138.1222026-05-30 → 2026-05-30 · 5 obs

○ 2026-05-29 23:17:32
● 2026-05-30 07:33:52
● 2026-05-30 09:31:22
○ 2026-05-30 15:30:08
○ 2026-06-24 10:43:02

○A3.167.138.282026-05-30 → 2026-05-30 · 5 obs

○ 2026-05-29 23:17:32
● 2026-05-30 07:33:52
● 2026-05-30 09:31:22
○ 2026-05-30 15:30:08
○ 2026-06-24 10:43:02

○A3.167.138.382026-05-30 → 2026-05-30 · 5 obs

○ 2026-05-29 23:17:32
● 2026-05-30 07:33:52
● 2026-05-30 09:31:22
○ 2026-05-30 15:30:08
○ 2026-06-24 10:43:02

○A3.170.3.1242026-03-01 → 2026-06-24 · 25 obs

○ 2026-02-17 01:16:54
○ 2026-02-25 21:15:20
● 2026-03-01 07:59:24
○ 2026-03-01 12:35:26
○ 2026-03-05 00:00:48
● 2026-03-05 19:06:54
○ 2026-03-06 11:48:52
○ 2026-03-21 02:14:48
● 2026-03-22 14:17:44
● 2026-03-23 00:13:04
○ 2026-03-23 23:30:46
● 2026-03-24 08:31:58
○ 2026-03-25 01:15:12
○ 2026-06-18 10:18:50
● 2026-06-18 11:12:50
○ 2026-06-18 12:14:22
● 2026-06-19 11:10:04
○ 2026-06-19 12:18:50
● 2026-06-22 00:42:52
○ 2026-06-22 03:32:26
● 2026-06-23 02:18:22
○ 2026-06-23 03:42:06
● 2026-06-24 03:04:52
○ 2026-06-24 05:12:54
○ 2026-06-24 10:43:02

○A3.170.3.332026-03-01 → 2026-06-24 · 25 obs

○A3.170.3.542026-03-01 → 2026-06-24 · 25 obs

○A3.170.3.882026-03-01 → 2026-06-24 · 25 obs

○A3.170.42.1122026-04-19 → 2026-06-11 · 7 obs

○ 2026-04-16 18:43:52
● 2026-04-19 03:54:12
○ 2026-04-19 07:39:20
○ 2026-06-10 20:15:12
● 2026-06-11 08:31:32
○ 2026-06-11 09:33:06
○ 2026-06-24 10:43:02

○A3.170.42.1142026-04-19 → 2026-06-11 · 7 obs

○ 2026-04-16 18:43:52
● 2026-04-19 03:54:12
○ 2026-04-19 07:39:20
○ 2026-06-10 20:15:12
● 2026-06-11 08:31:32
○ 2026-06-11 09:33:06
○ 2026-06-24 10:43:02

○A3.170.42.192026-04-19 → 2026-06-11 · 7 obs

○ 2026-04-16 18:43:52
● 2026-04-19 03:54:12
○ 2026-04-19 07:39:20
○ 2026-06-10 20:15:12
● 2026-06-11 08:31:32
○ 2026-06-11 09:33:06
○ 2026-06-24 10:43:02

○A3.170.42.492026-04-19 → 2026-06-11 · 7 obs

○ 2026-04-16 18:43:52
● 2026-04-19 03:54:12
○ 2026-04-19 07:39:20
○ 2026-06-10 20:15:12
● 2026-06-11 08:31:32
○ 2026-06-11 09:33:06
○ 2026-06-24 10:43:02

○A3.170.91.1012026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 12:40:54
● 2026-04-03 16:09:54
○ 2026-04-04 05:46:58
○ 2026-06-24 10:43:02

○A3.170.91.52026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 12:40:54
● 2026-04-03 16:09:54
○ 2026-04-04 05:46:58
○ 2026-06-24 10:43:02

○A3.170.91.522026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 12:40:54
● 2026-04-03 16:09:54
○ 2026-04-04 05:46:58
○ 2026-06-24 10:43:02

○A3.170.91.732026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 12:40:54
● 2026-04-03 16:09:54
○ 2026-04-04 05:46:58
○ 2026-06-24 10:43:02

○A3.171.139.1072026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 14:17:44
● 2026-03-22 16:28:10
○ 2026-03-22 21:03:16
○ 2026-06-24 10:43:02

○A3.171.139.932026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 14:17:44
● 2026-03-22 16:28:10
○ 2026-03-22 21:03:16
○ 2026-06-24 10:43:02

○A3.171.139.942026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 14:17:44
● 2026-03-22 16:28:10
○ 2026-03-22 21:03:16
○ 2026-06-24 10:43:02

○A3.171.139.952026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 14:17:44
● 2026-03-22 16:28:10
○ 2026-03-22 21:03:16
○ 2026-06-24 10:43:02

○A3.174.26.1082026-05-16 → 2026-06-08 · 19 obs

○ 2026-05-11 05:34:20
● 2026-05-16 18:29:32
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○A3.174.26.202026-05-16 → 2026-06-08 · 19 obs

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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	c0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io	-
workingbits.io	ns-349.awsdns-43.com, ns-1624.awsdns-11.co.uk, ns-1229.awsdns-25.org, ns-921.awsdns-51.net	-

✅ Authoritative Response

Server:205.251.196.205

NS records: ns-349.awsdns-43.com, ns-1624.awsdns-11.co.uk, ns-1229.awsdns-25.org, ns-921.awsdns-51.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workingbits.io (unsigned zone)

⏱️ Timing

Total: 634ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.3.124, 3.170.3.33...`
NS	4	`ns-1229.awsdns-25.org, ns-1624.awsdns-11.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`google-site-verification=gCu0Zp-rPkdeTFo`
SOA	1	`ns-349.awsdns-43.com awsdns-hostmaster.a`

Analysis

IP Addresses

workingbits.io has four IP addresses: 99.86.12.11, 99.86.12.88, 99.86.12.112 and 99.86.12.113.

Two other host names, along with search.vanderbilthealth.com, jperkins.instructure.com and tidomusicapp.com, also share IP numbers with workingbits.io.

Name Servers

The NS records for workingbits.io point to four name servers: ns-349.awsdns-43.com, ns-921.awsdns-51.net, ns-1229.awsdns-25.org and ns-1624.awsdns-11.co.uk.

workingbits.io has at least partial name server overlap with other domains, such as steigenberger.nl, learningblade.net, aos.com and two others.

ns-349.awsdns-43.com, ns-921.awsdns-51.net, ns-1229.awsdns-25.org and ns-1624.awsdns-11.co.uk all point to exactly two IP numbers each: ns-349.awsdns-43.com → 205.251.193.93 and 2600:9000:5301:5d00::1; ns-921.awsdns-51.net → 205.251.195.153 and 2600:9000:5303:9900::1; ns-1229.awsdns-25.org → 205.251.196.205 and 2600:9000:5304:cd00::1; ns-1624.awsdns-11.co.uk → 205.251.198.88 and 2600:9000:5306:5800::1.

Mail Servers

Mail for workingbits.io is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between workingbits.io and other domains, including ah.sk, bangkokcodespace.com, icrinepal.org and two others.

These mail servers tend to appear in combination with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Host names that have two IP addresses:

aspmx.l.google.com points to 172.253.63.27 and 2607:f8b0:4004:c08::1a.

alt1.aspmx.l.google.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

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

alt3.aspmx.l.google.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com points to 172.253.157.27 and 2a00:1450:400c:c23::1a.