readyfive.io - robtex.com

readyfive.io

DNSSEC⚠️ Not signed
A13.35.78.41πŸ‡ΊπŸ‡Έ Amazon
PTRserver-13-35-78-41.iad61.r.cloudfront.net
A13.35.78.42πŸ‡ΊπŸ‡Έ Amazon
A13.35.78.59πŸ‡ΊπŸ‡Έ Amazon
A13.35.78.84πŸ‡ΊπŸ‡Έ Amazon
NSns-116.awsdns-14.com ⭐
A2600:9000:5300:7400::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-116.awsdns-14.com
A205.251.192.116πŸ‡ΊπŸ‡Έ Amazon
PTRns-116.awsdns-14.com
NSns-1004.awsdns-61.net
A2600:9000:5303:ec00::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-1004.awsdns-61.net
A205.251.195.236πŸ‡ΊπŸ‡Έ Amazon
PTRns-1004.awsdns-61.net
NSns-1348.awsdns-40.org
A2600:9000:5305:4400::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-1348.awsdns-40.org
A205.251.197.68πŸ‡ΊπŸ‡Έ Amazon
PTRns-1348.awsdns-40.org
NSns-1915.awsdns-47.co.uk
A2600:9000:5307:7b00::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-1915.awsdns-47.co.uk
A205.251.199.123πŸ‡ΊπŸ‡Έ Amazon
PTRns-1915.awsdns-47.co.uk
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1bπŸ‡ΊπŸ‡Έ Google
PTRbk-in-f27.1e100.net
A172.253.62.27πŸ‡ΊπŸ‡Έ Google
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1bπŸ‡ΊπŸ‡Έ Google
PTRyutulis-in-f27.1e100.net
A74.125.27.26πŸ‡ΊπŸ‡Έ Google
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1aπŸ‡ΊπŸ‡Έ Google
PTRyucbful-in-f26.1e100.net
A192.178.209.26πŸ‡ΊπŸ‡Έ Google
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1bπŸ‡ΊπŸ‡Έ Google
PTRmj-in-f27.1e100.net
A192.178.152.26πŸ‡ΊπŸ‡Έ Google
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1aπŸ‡ΊπŸ‡Έ Google
PTRgg-in-f26.1e100.net
A142.250.96.27πŸ‡ΊπŸ‡Έ Google
PTRgg-in-f27.1e100.net
TXTgoogle-site-verification=8IpuOoC_tZH8q6KHqKWblCv_f4TzLWdnqwG69AZV40M
TXTv=spf1 include:_spf.google.com include:amazonses.com -all
SOAns-116.awsdns-14.comawsdns-hostmaster@amazon.com serial=1

io

DNSSECπŸ”’ Signed (DS record present)
NSa0.nic.io ⭐ πŸ”’
NSa2.nic.io πŸ”’
NSb0.nic.io πŸ”’
NSc0.nic.io πŸ”’
SOAa0.nic.iohostmaster@donuts.email serial=1771291657

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Same first word

Similar names

DNS History

25 records (13 active, 12 former)

NSns-1004.awsdns-61.netns-116.awsdns-14.comns-1348.awsdns-40.orgns-1915.awsdns-47.co.ukMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA13.35.78.4113.35.78.4213.35.78.5913.35.78.8418.164.116.1618.164.116.4118.164.116.5418.164.116.718.244.140.1318.244.140.2518.244.140.3018.244.140.37216.137.39.115216.137.39.13216.137.39.7216.137.39.72
●NSns-1004.awsdns-61.net2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●NSns-116.awsdns-14.com2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●NSns-1348.awsdns-40.org2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●NSns-1915.awsdns-47.co.uk2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●MXalt1.aspmx.l.google.com2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●MXalt2.aspmx.l.google.com2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●MXalt3.aspmx.l.google.com2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●MXalt4.aspmx.l.google.com2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●MXaspmx.l.google.com2026-02-15 β†’ 2026-02-24 Β· 2 obs
● 2026-02-15 04:00:40
● 2026-02-24 14:55:08
●A13.35.78.412026-02-18 β†’ 2026-02-24 Β· 28 obs
β—‹ 2026-02-18 02:30:16
● 2026-02-18 08:58:48
β—‹ 2026-02-18 10:02:34
β—‹ 2026-02-18 23:38:02
● 2026-02-19 05:33:08
β—‹ 2026-02-19 08:39:36
β—‹ 2026-02-19 15:01:20
● 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
β—‹ 2026-02-20 00:47:08
● 2026-02-20 03:30:34
β—‹ 2026-02-20 04:21:06
● 2026-02-20 08:49:54
● 2026-02-20 11:12:28
β—‹ 2026-02-20 14:45:32
β—‹ 2026-02-21 09:05:38
● 2026-02-21 11:53:48
● 2026-02-21 13:36:02
β—‹ 2026-02-21 15:03:00
● 2026-02-21 15:52:08
β—‹ 2026-02-21 20:49:18
β—‹ 2026-02-22 08:47:06
● 2026-02-22 12:38:46
● 2026-02-22 15:55:58
β—‹ 2026-02-23 02:50:22
β—‹ 2026-02-24 08:45:12
● 2026-02-24 09:15:14
● 2026-02-24 14:55:08
●A13.35.78.422026-02-18 β†’ 2026-02-24 Β· 28 obs
β—‹ 2026-02-18 02:30:16
● 2026-02-18 08:58:48
β—‹ 2026-02-18 10:02:34
β—‹ 2026-02-18 23:38:02
● 2026-02-19 05:33:08
β—‹ 2026-02-19 08:39:36
β—‹ 2026-02-19 15:01:20
● 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
β—‹ 2026-02-20 00:47:08
● 2026-02-20 03:30:34
β—‹ 2026-02-20 04:21:06
● 2026-02-20 08:49:54
● 2026-02-20 11:12:28
β—‹ 2026-02-20 14:45:32
β—‹ 2026-02-21 09:05:38
● 2026-02-21 11:53:48
● 2026-02-21 13:36:02
β—‹ 2026-02-21 15:03:00
● 2026-02-21 15:52:08
β—‹ 2026-02-21 20:49:18
β—‹ 2026-02-22 08:47:06
● 2026-02-22 12:38:46
● 2026-02-22 15:55:58
β—‹ 2026-02-23 02:50:22
β—‹ 2026-02-24 08:45:12
● 2026-02-24 09:15:14
● 2026-02-24 14:55:08
●A13.35.78.592026-02-18 β†’ 2026-02-24 Β· 28 obs
β—‹ 2026-02-18 02:30:16
● 2026-02-18 08:58:48
β—‹ 2026-02-18 10:02:34
β—‹ 2026-02-18 23:38:02
● 2026-02-19 05:33:08
β—‹ 2026-02-19 08:39:36
β—‹ 2026-02-19 15:01:20
● 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
β—‹ 2026-02-20 00:47:08
● 2026-02-20 03:30:34
β—‹ 2026-02-20 04:21:06
● 2026-02-20 08:49:54
● 2026-02-20 11:12:28
β—‹ 2026-02-20 14:45:32
β—‹ 2026-02-21 09:05:38
● 2026-02-21 11:53:48
● 2026-02-21 13:36:02
β—‹ 2026-02-21 15:03:00
● 2026-02-21 15:52:08
β—‹ 2026-02-21 20:49:18
β—‹ 2026-02-22 08:47:06
● 2026-02-22 12:38:46
● 2026-02-22 15:55:58
β—‹ 2026-02-23 02:50:22
β—‹ 2026-02-24 08:45:12
● 2026-02-24 09:15:14
● 2026-02-24 14:55:08
●A13.35.78.842026-02-18 β†’ 2026-02-24 Β· 28 obs
β—‹ 2026-02-18 02:30:16
● 2026-02-18 08:58:48
β—‹ 2026-02-18 10:02:34
β—‹ 2026-02-18 23:38:02
● 2026-02-19 05:33:08
β—‹ 2026-02-19 08:39:36
β—‹ 2026-02-19 15:01:20
● 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
β—‹ 2026-02-20 00:47:08
● 2026-02-20 03:30:34
β—‹ 2026-02-20 04:21:06
● 2026-02-20 08:49:54
● 2026-02-20 11:12:28
β—‹ 2026-02-20 14:45:32
β—‹ 2026-02-21 09:05:38
● 2026-02-21 11:53:48
● 2026-02-21 13:36:02
β—‹ 2026-02-21 15:03:00
● 2026-02-21 15:52:08
β—‹ 2026-02-21 20:49:18
β—‹ 2026-02-22 08:47:06
● 2026-02-22 12:38:46
● 2026-02-22 15:55:58
β—‹ 2026-02-23 02:50:22
β—‹ 2026-02-24 08:45:12
● 2026-02-24 09:15:14
● 2026-02-24 14:55:08
β—‹A18.164.116.162026-02-16 β†’ 2026-02-16 Β· 4 obs
β—‹ 2026-02-16 02:16:48
● 2026-02-16 04:56:32
β—‹ 2026-02-16 07:06:58
β—‹ 2026-02-24 14:55:08
β—‹A18.164.116.412026-02-16 β†’ 2026-02-16 Β· 4 obs
β—‹ 2026-02-16 02:16:48
● 2026-02-16 04:56:32
β—‹ 2026-02-16 07:06:58
β—‹ 2026-02-24 14:55:08
β—‹A18.164.116.542026-02-16 β†’ 2026-02-16 Β· 4 obs
β—‹ 2026-02-16 02:16:48
● 2026-02-16 04:56:32
β—‹ 2026-02-16 07:06:58
β—‹ 2026-02-24 14:55:08
β—‹A18.164.116.72026-02-16 β†’ 2026-02-16 Β· 4 obs
β—‹ 2026-02-16 02:16:48
● 2026-02-16 04:56:32
β—‹ 2026-02-16 07:06:58
β—‹ 2026-02-24 14:55:08
β—‹A18.244.140.132026-02-15 β†’ 2026-02-24 Β· 38 obs
β—‹ 2026-02-15 04:57:26
● 2026-02-15 16:06:08
● 2026-02-16 02:16:48
β—‹ 2026-02-16 04:56:32
● 2026-02-16 07:06:58
● 2026-02-18 02:30:16
β—‹ 2026-02-18 08:58:48
β—‹ 2026-02-18 14:02:52
● 2026-02-18 21:16:38
● 2026-02-18 23:38:02
β—‹ 2026-02-19 05:33:08
● 2026-02-19 08:39:36
● 2026-02-19 15:01:20
β—‹ 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
● 2026-02-19 20:50:46
● 2026-02-20 00:47:08
β—‹ 2026-02-20 03:30:34
β—‹ 2026-02-20 11:12:28
● 2026-02-20 14:45:32
● 2026-02-21 09:05:38
β—‹ 2026-02-21 11:53:48
β—‹ 2026-02-21 13:36:02
● 2026-02-21 15:03:00
β—‹ 2026-02-21 15:52:08
● 2026-02-21 20:49:18
● 2026-02-22 08:47:06
β—‹ 2026-02-22 12:38:46
β—‹ 2026-02-22 15:55:58
● 2026-02-23 02:50:22
● 2026-02-23 15:09:48
β—‹ 2026-02-23 18:36:14
● 2026-02-23 19:55:02
β—‹ 2026-02-23 20:42:30
● 2026-02-23 23:03:58
● 2026-02-24 08:45:12
β—‹ 2026-02-24 09:15:14
β—‹ 2026-02-24 14:55:08
β—‹A18.244.140.252026-02-15 β†’ 2026-02-24 Β· 38 obs
β—‹ 2026-02-15 04:57:26
● 2026-02-15 16:06:08
● 2026-02-16 02:16:48
β—‹ 2026-02-16 04:56:32
● 2026-02-16 07:06:58
● 2026-02-18 02:30:16
β—‹ 2026-02-18 08:58:48
β—‹ 2026-02-18 14:02:52
● 2026-02-18 21:16:38
● 2026-02-18 23:38:02
β—‹ 2026-02-19 05:33:08
● 2026-02-19 08:39:36
● 2026-02-19 15:01:20
β—‹ 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
● 2026-02-19 20:50:46
● 2026-02-20 00:47:08
β—‹ 2026-02-20 03:30:34
β—‹ 2026-02-20 11:12:28
● 2026-02-20 14:45:32
● 2026-02-21 09:05:38
β—‹ 2026-02-21 11:53:48
β—‹ 2026-02-21 13:36:02
● 2026-02-21 15:03:00
β—‹ 2026-02-21 15:52:08
● 2026-02-21 20:49:18
● 2026-02-22 08:47:06
β—‹ 2026-02-22 12:38:46
β—‹ 2026-02-22 15:55:58
● 2026-02-23 02:50:22
● 2026-02-23 15:09:48
β—‹ 2026-02-23 18:36:14
● 2026-02-23 19:55:02
β—‹ 2026-02-23 20:42:30
● 2026-02-23 23:03:58
● 2026-02-24 08:45:12
β—‹ 2026-02-24 09:15:14
β—‹ 2026-02-24 14:55:08
β—‹A18.244.140.302026-02-15 β†’ 2026-02-24 Β· 38 obs
β—‹ 2026-02-15 04:57:26
● 2026-02-15 16:06:08
● 2026-02-16 02:16:48
β—‹ 2026-02-16 04:56:32
● 2026-02-16 07:06:58
● 2026-02-18 02:30:16
β—‹ 2026-02-18 08:58:48
β—‹ 2026-02-18 14:02:52
● 2026-02-18 21:16:38
● 2026-02-18 23:38:02
β—‹ 2026-02-19 05:33:08
● 2026-02-19 08:39:36
● 2026-02-19 15:01:20
β—‹ 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
● 2026-02-19 20:50:46
● 2026-02-20 00:47:08
β—‹ 2026-02-20 03:30:34
β—‹ 2026-02-20 11:12:28
● 2026-02-20 14:45:32
● 2026-02-21 09:05:38
β—‹ 2026-02-21 11:53:48
β—‹ 2026-02-21 13:36:02
● 2026-02-21 15:03:00
β—‹ 2026-02-21 15:52:08
● 2026-02-21 20:49:18
● 2026-02-22 08:47:06
β—‹ 2026-02-22 12:38:46
β—‹ 2026-02-22 15:55:58
● 2026-02-23 02:50:22
● 2026-02-23 15:09:48
β—‹ 2026-02-23 18:36:14
● 2026-02-23 19:55:02
β—‹ 2026-02-23 20:42:30
● 2026-02-23 23:03:58
● 2026-02-24 08:45:12
β—‹ 2026-02-24 09:15:14
β—‹ 2026-02-24 14:55:08
β—‹A18.244.140.372026-02-15 β†’ 2026-02-24 Β· 38 obs
β—‹ 2026-02-15 04:57:26
● 2026-02-15 16:06:08
● 2026-02-16 02:16:48
β—‹ 2026-02-16 04:56:32
● 2026-02-16 07:06:58
● 2026-02-18 02:30:16
β—‹ 2026-02-18 08:58:48
β—‹ 2026-02-18 14:02:52
● 2026-02-18 21:16:38
● 2026-02-18 23:38:02
β—‹ 2026-02-19 05:33:08
● 2026-02-19 08:39:36
● 2026-02-19 15:01:20
β—‹ 2026-02-19 17:57:00
β—‹ 2026-02-19 18:42:50
● 2026-02-19 20:50:46
● 2026-02-20 00:47:08
β—‹ 2026-02-20 03:30:34
β—‹ 2026-02-20 11:12:28
● 2026-02-20 14:45:32
● 2026-02-21 09:05:38
β—‹ 2026-02-21 11:53:48
β—‹ 2026-02-21 13:36:02
● 2026-02-21 15:03:00
β—‹ 2026-02-21 15:52:08
● 2026-02-21 20:49:18
● 2026-02-22 08:47:06
β—‹ 2026-02-22 12:38:46
β—‹ 2026-02-22 15:55:58
● 2026-02-23 02:50:22
● 2026-02-23 15:09:48
β—‹ 2026-02-23 18:36:14
● 2026-02-23 19:55:02
β—‹ 2026-02-23 20:42:30
● 2026-02-23 23:03:58
● 2026-02-24 08:45:12
β—‹ 2026-02-24 09:15:14
β—‹ 2026-02-24 14:55:08
β—‹A216.137.39.1152026-02-15 β†’ 2026-02-23 Β· 19 obs
● 2026-02-15 04:00:40
● 2026-02-15 04:57:26
β—‹ 2026-02-15 16:06:08
β—‹ 2026-02-18 08:58:48
● 2026-02-18 10:02:34
● 2026-02-18 14:02:52
β—‹ 2026-02-18 21:16:38
β—‹ 2026-02-19 17:57:00
● 2026-02-19 18:42:50
β—‹ 2026-02-19 20:50:46
β—‹ 2026-02-20 03:30:34
● 2026-02-20 04:21:06
β—‹ 2026-02-20 08:49:54
β—‹ 2026-02-23 15:09:48
● 2026-02-23 18:36:14
β—‹ 2026-02-23 19:55:02
● 2026-02-23 20:42:30
β—‹ 2026-02-23 23:03:58
β—‹ 2026-02-24 14:55:08
β—‹A216.137.39.132026-02-15 β†’ 2026-02-23 Β· 19 obs
● 2026-02-15 04:00:40
● 2026-02-15 04:57:26
β—‹ 2026-02-15 16:06:08
β—‹ 2026-02-18 08:58:48
● 2026-02-18 10:02:34
● 2026-02-18 14:02:52
β—‹ 2026-02-18 21:16:38
β—‹ 2026-02-19 17:57:00
● 2026-02-19 18:42:50
β—‹ 2026-02-19 20:50:46
β—‹ 2026-02-20 03:30:34
● 2026-02-20 04:21:06
β—‹ 2026-02-20 08:49:54
β—‹ 2026-02-23 15:09:48
● 2026-02-23 18:36:14
β—‹ 2026-02-23 19:55:02
● 2026-02-23 20:42:30
β—‹ 2026-02-23 23:03:58
β—‹ 2026-02-24 14:55:08
β—‹A216.137.39.72026-02-15 β†’ 2026-02-23 Β· 19 obs
● 2026-02-15 04:00:40
● 2026-02-15 04:57:26
β—‹ 2026-02-15 16:06:08
β—‹ 2026-02-18 08:58:48
● 2026-02-18 10:02:34
● 2026-02-18 14:02:52
β—‹ 2026-02-18 21:16:38
β—‹ 2026-02-19 17:57:00
● 2026-02-19 18:42:50
β—‹ 2026-02-19 20:50:46
β—‹ 2026-02-20 03:30:34
● 2026-02-20 04:21:06
β—‹ 2026-02-20 08:49:54
β—‹ 2026-02-23 15:09:48
● 2026-02-23 18:36:14
β—‹ 2026-02-23 19:55:02
● 2026-02-23 20:42:30
β—‹ 2026-02-23 23:03:58
β—‹ 2026-02-24 14:55:08
β—‹A216.137.39.722026-02-15 β†’ 2026-02-23 Β· 19 obs
● 2026-02-15 04:00:40
● 2026-02-15 04:57:26
β—‹ 2026-02-15 16:06:08
β—‹ 2026-02-18 08:58:48
● 2026-02-18 10:02:34
● 2026-02-18 14:02:52
β—‹ 2026-02-18 21:16:38
β—‹ 2026-02-19 17:57:00
● 2026-02-19 18:42:50
β—‹ 2026-02-19 20:50:46
β—‹ 2026-02-20 03:30:34
● 2026-02-20 04:21:06
β—‹ 2026-02-20 08:49:54
β—‹ 2026-02-23 15:09:48
● 2026-02-23 18:36:14
β—‹ 2026-02-23 19:55:02
● 2026-02-23 20:42:30
β—‹ 2026-02-23 23:03:58
β—‹ 2026-02-24 14:55:08

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
ioa2.nic.io, a0.nic.io, c0.nic.io, b0.nic.io-
readyfive.ions-116.awsdns-14.com, ns-1348.awsdns-40.org, ns-1915.awsdns-47.co.uk, ns-1004.awsdns-61.net-

βœ… Authoritative Response

Server: 205.251.199.123

NS records: ns-116.awsdns-14.com, ns-1348.awsdns-40.org, ns-1915.awsdns-47.co.uk, ns-1004.awsdns-61.net

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readyfive.io (unsigned zone)

⏱️ Timing

Total: 631ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A413.35.78.84, 13.35.78.59...
NS4ns-1004.awsdns-61.net, ns-116.awsdns-14.com...
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=8IpuOoC_tZH8q6K, v=spf1 include:_spf.google.com include:a
SOA1ns-116.awsdns-14.com awsdns-hostmaster.a

AI analysis

koala.readyfive.io is a child of readyfive.io.

readyfive.io refers to four IP numbers: 13.35.78.41, 13.35.78.42, 13.35.78.59 and 13.35.78.84.

Other host names, for instance compare-im.bravofly.hu, lvlselct.com, ca.bravofly.com, gamabu.com and d2l83rcyfep53k.cloudfront.net share IP numbers with readyfive.io.

readyfive.io delegates to four name servers: ns-116.awsdns-14.com, ns-1004.awsdns-61.net, ns-1348.awsdns-40.org and ns-1915.awsdns-47.co.uk.

readyfive.io at least partially shares name servers with other domains, including entercube.net, mdd.ds.data.here.com, presencia.es, sportsbetsblog.com and you42.com.

These name servers are commonly used with ns-703.awsdns-23.net.

Host names with two IP numbers: ns-116.awsdns-14.com points to 2600:9000:5300:7400::1 and 205.251.192.116; ns-1004.awsdns-61.net points to 2600:9000:5303:ec00::1 and 205.251.195.236; ns-1348.awsdns-40.org points to 2600:9000:5305:4400::1 and 205.251.197.68; ns-1915.awsdns-47.co.uk points to 2600:9000:5307:7b00::1 and 205.251.199.123.

readyfive.io is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

readyfive.io shares at least some mail servers with other domains, for example ns500758.ns500759.ns500698.ns500759.ns500735.ns500735.ns500698.ns500698.ns500576.ns500698.ns500698.ns500652.trackreceptor.com, cloudnet.ae, ns500765.ns500765.ns500699.ns500699.ns500693.ns500693.ns500734.ns500734.ns500693.ns500693.ns500588.ns500683.ns500699.ns500699.ns500683.ns500683.ns500588.dtrkdll.com, ns500768.ns500758.ns500735.ns500698.ns500698.ns500576.ns500576.ns500619.ns500698.ns500576.ns500619.ns500576.trackreceptor.com and ns500754.ns500754.ns500754.ns500742.ns500731.ns500742.ns500704.ns500705.ns500671.ns500705.ns500678.ns500649.lustychickser.com.

these mail servers are often used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to: 2607:f8b0:4004:c19::1b and 172.253.62.27.

alt1.aspmx.l.google.com points to: 2607:f8b0:4003:c30::1b and 74.125.27.26.

alt2.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.26.

alt3.aspmx.l.google.com points to: 2607:f8b0:4024:c0d::1b and 192.178.152.26.

alt4.aspmx.l.google.com points to: 2607:f8b0:4023:403::1a and 142.250.96.27.