`w.amazon.dev`

DNSSEC	⚠️ Not signed
A	52.222.177.19^{🇺🇸 Amazon52.222.0.0/16}
		PTR	`server-52-222-177-19.lhr95.r.cloudfront.net`
A	52.222.177.56^{🇺🇸 Amazon52.222.0.0/16}
A	52.222.177.61^{🇺🇸 Amazon52.222.0.0/16}
A	52.222.177.124^{🇺🇸 Amazon52.222.0.0/16}
NS	`ns-670.awsdns-19.net` ⭐
		A	2600:9000:5302:9e00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-670.awsdns-19.net`
		A	205.251.194.158^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-670.awsdns-19.net`
NS	`ns-1189.awsdns-20.org`
		A	2600:9000:5304:a500::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1189.awsdns-20.org`
		A	205.251.196.165^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1189.awsdns-20.org`
NS	`ns-1659.awsdns-15.co.uk`
		A	2600:9000:5306:7b00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1659.awsdns-15.co.uk`
		A	205.251.198.123^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1659.awsdns-15.co.uk`
NS	`ns-355.awsdns-44.com`
		A	2600:9000:5301:6300::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-355.awsdns-44.com`
		A	205.251.193.99^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-355.awsdns-44.com`
SOA	`ns-670.awsdns-19.net`awsdns-hostmaster@amazon.com serial=1

amazon.dev

amazon.dev is a reserved domain owned by Amazon, Inc. The domain does not currently host a public website—it appears to be held as a brand protection measure under the .dev top-level domain (which is owned by Google and requires HTTPS).

DNS Infrastructure

The domain is fully hosted on Amazon Web Services (AWS) infrastructure:

Nameservers: AWS Route 53 (ns-729.awsdns-27.net, ns-101.awsdns-12.com, ns-1373.awsdns-43.org, ns-1648.awsdns-14.co.uk)
SOA Contact: awsdns-hostmaster@amazon.com
IPv4: 205.251.194.217, 205.251.192.101, 205.251.197.93, 205.251.198.112 (all Amazon)
IPv6: 2600:9000:5302:d900::1, 2600:9000:5300:6500::1, 2600:9000:5305:5d00::1, 2600:9000:5306:7000::1
DNSSEC: Not signed

Email & Usage

SPF Record: v=spf1 -all — explicitly rejects all email (no mail services)
MX Records: None configured

Amazon's primary developer portal is located at developer.amazon.com, which provides access to Alexa Skills Kit, Amazon Appstore, AWS Dev Center, Login with Amazon, and other developer APIs and tools.

Subdomains

prod.w.amazon.dev

Same first word

w.app

w.wtf

w.fm

w.com.mx

w.is

w.vin

w.in-berlin.de

w.co.nz

w.org

w.cm

w.domains

w.cr

w.uk

w.co.il

w.ht

w.me

w.herokuapp.com

w.guru

w.hr

w.ventures

w.mw

w.pn

w.ls

w.vg

w.akamaiedge.net

w.pw

w.ms

w.dating

w.cz

w.com.uy

w.partners

w.ua

w.ws

w.nf

w.ac

w.dk

w.tt

w.at

w.wales

w.fish

w.link

w.plus

w.win

w.st

w.org.cn

w.de

w.pe

w.cx

w.kz

w.ai

w.casino

w.how

w.ink

w.cg

w.waw.pl

w.ie

w.blogspot.com

w.jx.cn

w.com.pl

w.vu

w.ro

w.wiki

w.krakow.pl

w.ph

w.s3.amazonaws.com

w.archi

w.tv

w.je

w.tl

w.finance

w.co.za

w.ly

w.pl

w.od.ua

w.agency

w.cafe

w.lu

w.biz

w.co

w.warmia.pl

w.city

w.www.ro

w.country

w.ee

w.ag

w.ddns.net

w.cheap

w.cl

w.hm

w.tools

w.media

w.mk

w.uy

DNS History

24 records (8 active, 16 former)

●NSns-1189.awsdns-20.org2026-02-22 → 2026-03-12 · 2 obs

● 2026-02-22 17:36:32
● 2026-03-12 05:04:56

●NSns-1659.awsdns-15.co.uk2026-02-22 → 2026-03-12 · 2 obs

● 2026-02-22 17:36:32
● 2026-03-12 05:04:56

●NSns-355.awsdns-44.com2026-02-22 → 2026-03-12 · 2 obs

● 2026-02-22 17:36:32
● 2026-03-12 05:04:56

●NSns-670.awsdns-19.net2026-02-22 → 2026-03-12 · 2 obs

● 2026-02-22 17:36:32
● 2026-03-12 05:04:56

○A13.33.82.342026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:54:20
● 2026-03-09 00:36:26
○ 2026-03-09 03:00:04
○ 2026-03-12 05:04:56

○A13.33.82.392026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:54:20
● 2026-03-09 00:36:26
○ 2026-03-09 03:00:04
○ 2026-03-12 05:04:56

○A13.33.82.442026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:54:20
● 2026-03-09 00:36:26
○ 2026-03-09 03:00:04
○ 2026-03-12 05:04:56

○A13.33.82.732026-03-09 → 2026-03-09 · 4 obs

○ 2026-03-08 23:54:20
● 2026-03-09 00:36:26
○ 2026-03-09 03:00:04
○ 2026-03-12 05:04:56

○A18.165.98.1202026-02-26 → 2026-02-28 · 7 obs

○ 2026-02-26 15:29:04
● 2026-02-26 18:19:58
○ 2026-02-26 18:53:12
○ 2026-02-28 04:51:04
● 2026-02-28 07:23:50
○ 2026-02-28 08:07:12
○ 2026-03-12 05:04:56

○A18.165.98.492026-02-26 → 2026-02-28 · 7 obs

○ 2026-02-26 15:29:04
● 2026-02-26 18:19:58
○ 2026-02-26 18:53:12
○ 2026-02-28 04:51:04
● 2026-02-28 07:23:50
○ 2026-02-28 08:07:12
○ 2026-03-12 05:04:56

○A18.165.98.612026-02-26 → 2026-02-28 · 7 obs

○ 2026-02-26 15:29:04
● 2026-02-26 18:19:58
○ 2026-02-26 18:53:12
○ 2026-02-28 04:51:04
● 2026-02-28 07:23:50
○ 2026-02-28 08:07:12
○ 2026-03-12 05:04:56

○A18.165.98.672026-02-26 → 2026-02-28 · 7 obs

○ 2026-02-26 15:29:04
● 2026-02-26 18:19:58
○ 2026-02-26 18:53:12
○ 2026-02-28 04:51:04
● 2026-02-28 07:23:50
○ 2026-02-28 08:07:12
○ 2026-03-12 05:04:56

○A3.167.192.1222026-02-24 → 2026-03-12 · 149 obs

○ 2026-02-24 04:39:26
● 2026-02-24 06:53:02
○ 2026-02-24 08:03:34
● 2026-02-24 09:12:28
● 2026-02-24 10:32:48
○ 2026-02-24 12:50:36
○ 2026-02-24 15:50:50
● 2026-02-24 17:09:18
● 2026-02-24 20:06:50
○ 2026-02-24 21:03:08
○ 2026-02-24 22:34:34
● 2026-02-25 02:46:04
● 2026-02-25 12:29:24
○ 2026-02-25 15:40:08
● 2026-02-25 16:53:00
● 2026-02-25 23:47:10
○ 2026-02-26 02:40:16
● 2026-02-26 08:03:22
○ 2026-02-26 09:16:58
● 2026-02-26 13:03:24
● 2026-02-26 14:45:38
○ 2026-02-26 15:29:04
○ 2026-02-26 20:58:24
● 2026-02-26 22:37:00
● 2026-02-27 05:45:56
○ 2026-02-27 08:13:04
● 2026-02-27 08:43:24
● 2026-02-27 10:35:52
○ 2026-02-27 11:47:18
● 2026-02-27 13:20:12
○ 2026-02-27 16:09:38
○ 2026-02-27 20:56:56
● 2026-02-27 23:11:02
○ 2026-02-28 00:13:36
● 2026-02-28 00:51:34
● 2026-02-28 01:22:08
○ 2026-02-28 04:51:04
○ 2026-02-28 09:39:24
● 2026-02-28 10:35:30
● 2026-02-28 14:33:44
○ 2026-02-28 15:25:08
○ 2026-02-28 16:03:12
● 2026-02-28 17:48:34
○ 2026-02-28 20:49:02
● 2026-02-28 22:50:26
● 2026-03-01 00:42:24
○ 2026-03-01 03:17:26
● 2026-03-01 04:07:24
○ 2026-03-01 06:32:24
● 2026-03-01 07:57:46
○ 2026-03-01 09:11:38
○ 2026-03-01 12:07:12
● 2026-03-01 13:55:58
○ 2026-03-01 15:36:04
○ 2026-03-01 17:20:48
● 2026-03-01 20:01:14
● 2026-03-01 22:48:32
○ 2026-03-02 00:13:50
○ 2026-03-02 02:54:52
● 2026-03-02 05:05:30
● 2026-03-02 11:06:36
○ 2026-03-02 15:12:48
● 2026-03-02 15:49:58
● 2026-03-02 23:02:46
○ 2026-03-03 00:12:52
○ 2026-03-03 01:56:28
● 2026-03-03 03:12:54
● 2026-03-03 11:45:50
○ 2026-03-03 12:17:24
● 2026-03-03 13:16:36
● 2026-03-03 15:28:52
○ 2026-03-03 16:42:08
● 2026-03-03 18:19:58
○ 2026-03-04 01:35:36
● 2026-03-04 07:13:36
● 2026-03-04 21:39:12
○ 2026-03-04 22:44:58
○ 2026-03-05 00:12:20
● 2026-03-05 01:06:18
○ 2026-03-05 03:28:38
○ 2026-03-05 06:06:30
● 2026-03-05 09:16:32
● 2026-03-05 17:54:30
○ 2026-03-05 20:22:32
● 2026-03-05 21:03:20
○ 2026-03-05 21:34:40
● 2026-03-05 23:01:06
● 2026-03-06 02:14:08
○ 2026-03-06 02:51:00
○ 2026-03-06 07:20:40
● 2026-03-06 08:00:20
○ 2026-03-06 08:55:48
● 2026-03-06 14:03:52
○ 2026-03-06 15:33:34
● 2026-03-06 17:06:58
● 2026-03-06 18:39:58
○ 2026-03-07 00:10:18
○ 2026-03-07 03:02:38
● 2026-03-07 08:52:16
○ 2026-03-07 09:23:52
● 2026-03-07 10:14:56
● 2026-03-07 11:04:50
○ 2026-03-07 12:01:24
● 2026-03-07 12:51:58
● 2026-03-07 17:37:50
○ 2026-03-07 22:16:04
○ 2026-03-08 00:02:16
● 2026-03-08 00:41:32
● 2026-03-08 04:15:52
○ 2026-03-08 06:05:44
○ 2026-03-08 12:00:16
● 2026-03-08 12:45:26
● 2026-03-08 13:22:24
○ 2026-03-08 16:47:24
○ 2026-03-08 19:00:14
● 2026-03-08 23:54:20
○ 2026-03-09 00:36:26
○ 2026-03-09 03:00:04
● 2026-03-09 04:45:42
○ 2026-03-09 09:15:50
● 2026-03-09 10:30:00
● 2026-03-09 12:56:44
○ 2026-03-09 15:01:56
● 2026-03-09 18:20:20
● 2026-03-09 19:59:12
○ 2026-03-09 23:04:40
○ 2026-03-09 23:46:18
● 2026-03-10 01:11:58
● 2026-03-10 02:31:08
○ 2026-03-10 03:21:10
○ 2026-03-10 05:55:44
● 2026-03-10 06:28:10
● 2026-03-10 09:37:36
○ 2026-03-10 12:27:50
● 2026-03-10 15:40:08
○ 2026-03-10 18:53:56
○ 2026-03-10 19:36:40
● 2026-03-10 20:48:20
○ 2026-03-11 00:12:28
○ 2026-03-11 01:53:32
● 2026-03-11 03:20:06
○ 2026-03-11 04:01:40
○ 2026-03-11 06:13:48
● 2026-03-11 06:58:24
○ 2026-03-11 08:12:42
○ 2026-03-12 02:08:50
● 2026-03-12 03:49:46
○ 2026-03-12 04:41:58
○ 2026-03-12 05:04:56

○A3.167.192.172026-02-24 → 2026-03-12 · 149 obs

○A3.167.192.242026-02-24 → 2026-03-12 · 149 obs

○A3.167.192.832026-02-24 → 2026-03-12 · 149 obs

●A52.222.177.1242026-02-23 → 2026-03-12 · 143 obs

○ 2026-02-22 23:35:40
● 2026-02-23 10:34:24
○ 2026-02-24 00:11:06
○ 2026-02-24 06:53:02
● 2026-02-24 08:03:34
○ 2026-02-24 09:12:28
○ 2026-02-24 10:32:48
● 2026-02-24 12:50:36
● 2026-02-24 15:50:50
○ 2026-02-24 17:09:18
○ 2026-02-24 20:06:50
● 2026-02-24 21:03:08
● 2026-02-24 22:34:34
○ 2026-02-25 02:46:04
○ 2026-02-25 12:29:24
● 2026-02-25 15:40:08
○ 2026-02-25 16:53:00
○ 2026-02-26 08:03:22
● 2026-02-26 09:16:58
○ 2026-02-26 13:03:24
○ 2026-02-26 18:19:58
● 2026-02-26 18:53:12
● 2026-02-26 20:58:24
○ 2026-02-26 22:37:00
○ 2026-02-27 05:45:56
● 2026-02-27 08:13:04
○ 2026-02-27 08:43:24
○ 2026-02-27 10:35:52
● 2026-02-27 11:47:18
○ 2026-02-27 13:20:12
○ 2026-02-27 16:09:38
● 2026-02-27 20:56:56
○ 2026-02-27 23:11:02
○ 2026-02-28 07:23:50
● 2026-02-28 08:07:12
● 2026-02-28 09:39:24
○ 2026-02-28 10:35:30
○ 2026-02-28 14:33:44
● 2026-02-28 15:25:08
● 2026-02-28 16:03:12
○ 2026-02-28 17:48:34
● 2026-02-28 20:49:02
○ 2026-02-28 22:50:26
○ 2026-03-01 00:42:24
● 2026-03-01 03:17:26
○ 2026-03-01 04:07:24
○ 2026-03-01 07:57:46
● 2026-03-01 09:11:38
● 2026-03-01 12:07:12
○ 2026-03-01 13:55:58
● 2026-03-01 15:36:04
● 2026-03-01 17:20:48
○ 2026-03-01 20:01:14
○ 2026-03-02 00:13:50
● 2026-03-02 02:54:52
○ 2026-03-02 05:05:30
○ 2026-03-02 11:06:36
● 2026-03-02 15:12:48
○ 2026-03-02 15:49:58
○ 2026-03-03 11:45:50
● 2026-03-03 12:17:24
○ 2026-03-03 13:16:36
○ 2026-03-03 15:28:52
● 2026-03-03 16:42:08
○ 2026-03-03 18:19:58
● 2026-03-04 01:35:36
○ 2026-03-04 07:13:36
○ 2026-03-04 21:39:12
● 2026-03-04 22:44:58
○ 2026-03-05 00:12:20
○ 2026-03-05 01:06:18
● 2026-03-05 03:28:38
● 2026-03-05 06:06:30
○ 2026-03-05 09:16:32
○ 2026-03-05 17:54:30
● 2026-03-05 20:22:32
○ 2026-03-05 21:03:20
● 2026-03-05 21:34:40
○ 2026-03-05 23:01:06
○ 2026-03-06 02:14:08
● 2026-03-06 02:51:00
● 2026-03-06 07:20:40
○ 2026-03-06 08:00:20
● 2026-03-06 08:55:48
○ 2026-03-06 14:03:52
● 2026-03-06 15:33:34
○ 2026-03-06 17:06:58
○ 2026-03-07 02:04:40
● 2026-03-07 03:02:38
○ 2026-03-07 08:52:16
● 2026-03-07 09:23:52
○ 2026-03-07 10:14:56
○ 2026-03-07 11:04:50
● 2026-03-07 12:01:24
○ 2026-03-07 12:51:58
○ 2026-03-07 17:37:50
● 2026-03-07 22:16:04
● 2026-03-08 00:02:16
○ 2026-03-08 00:41:32
○ 2026-03-08 04:15:52
● 2026-03-08 06:05:44
● 2026-03-08 12:00:16
○ 2026-03-08 12:45:26
○ 2026-03-08 13:22:24
● 2026-03-08 16:47:24
● 2026-03-08 19:00:14
○ 2026-03-08 23:54:20
○ 2026-03-09 00:36:26
● 2026-03-09 03:00:04
○ 2026-03-09 04:45:42
● 2026-03-09 09:15:50
○ 2026-03-09 10:30:00
○ 2026-03-09 12:56:44
● 2026-03-09 15:01:56
○ 2026-03-09 18:20:20
○ 2026-03-09 19:59:12
● 2026-03-09 23:04:40
● 2026-03-09 23:46:18
○ 2026-03-10 01:11:58
○ 2026-03-10 02:31:08
● 2026-03-10 03:21:10
● 2026-03-10 05:55:44
○ 2026-03-10 06:28:10
○ 2026-03-10 09:37:36
● 2026-03-10 12:27:50
○ 2026-03-10 15:40:08
● 2026-03-10 18:53:56
● 2026-03-10 19:36:40
○ 2026-03-10 20:48:20
○ 2026-03-11 00:12:28
● 2026-03-11 01:53:32
○ 2026-03-11 03:20:06
● 2026-03-11 04:01:40
● 2026-03-11 06:13:48
○ 2026-03-11 06:58:24
● 2026-03-11 08:12:42
● 2026-03-11 13:40:04
○ 2026-03-11 15:19:52
● 2026-03-11 17:33:50
● 2026-03-12 02:08:50
○ 2026-03-12 03:49:46
● 2026-03-12 04:41:58
● 2026-03-12 05:04:56

●A52.222.177.192026-02-23 → 2026-03-12 · 143 obs

●A52.222.177.562026-02-23 → 2026-03-12 · 143 obs

●A52.222.177.612026-02-23 → 2026-03-12 · 143 obs

○A52.85.193.102026-02-22 → 2026-03-11 · 45 obs

● 2026-02-22 17:36:32
● 2026-02-22 23:35:40
○ 2026-02-23 10:34:24
● 2026-02-24 00:11:06
● 2026-02-24 04:39:26
○ 2026-02-24 06:53:02
○ 2026-02-25 23:47:10
● 2026-02-26 02:40:16
○ 2026-02-26 08:03:22
○ 2026-02-26 14:45:38
● 2026-02-26 15:29:04
○ 2026-02-26 18:19:58
○ 2026-02-27 13:20:12
● 2026-02-27 16:09:38
○ 2026-02-27 20:56:56
○ 2026-02-27 23:11:02
● 2026-02-28 00:13:36
○ 2026-02-28 00:51:34
○ 2026-02-28 01:22:08
● 2026-02-28 04:51:04
○ 2026-02-28 07:23:50
○ 2026-03-01 04:07:24
● 2026-03-01 06:32:24
○ 2026-03-01 07:57:46
○ 2026-03-01 22:48:32
● 2026-03-02 00:13:50
○ 2026-03-02 02:54:52
○ 2026-03-02 23:02:46
● 2026-03-03 00:12:52
● 2026-03-03 01:56:28
○ 2026-03-03 03:12:54
○ 2026-03-04 22:44:58
● 2026-03-05 00:12:20
○ 2026-03-05 01:06:18
○ 2026-03-06 18:39:58
● 2026-03-07 00:10:18
● 2026-03-07 02:04:40
○ 2026-03-07 03:02:38
○ 2026-03-10 20:48:20
● 2026-03-11 00:12:28
○ 2026-03-11 01:53:32
○ 2026-03-11 13:40:04
● 2026-03-11 15:19:52
○ 2026-03-11 17:33:50
○ 2026-03-12 05:04:56

○A52.85.193.1082026-02-22 → 2026-03-11 · 45 obs

○A52.85.193.42026-02-22 → 2026-03-11 · 45 obs

○A52.85.193.452026-02-22 → 2026-03-11 · 45 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
amazon.dev	ns-101.awsdns-12.com, ns-729.awsdns-27.net, ns-1373.awsdns-43.org, ns-1648.awsdns-14.co.uk	-
w.amazon.dev	ns-1189.awsdns-20.org, ns-1659.awsdns-15.co.uk, ns-355.awsdns-44.com, ns-670.awsdns-19.net	-

✅ Authoritative Response

Server: 205.251.198.123

NS records: ns-1189.awsdns-20.org, ns-1659.awsdns-15.co.uk, ns-355.awsdns-44.com, ns-670.awsdns-19.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for amazon.dev (unsigned zone)

⏱️ Timing

Total: 1528ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`52.85.193.4, 52.85.193.10...`
NS	4	`ns-1189.awsdns-20.org, ns-1659.awsdns-15.co.uk...`
SOA	1	`ns-670.awsdns-19.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

Hierarchy

The parent of prod.w.amazon.dev is w.amazon.dev.

IP Addresses

w.amazon.dev maps to four IP numbers: 52.222.177.19, 52.222.177.56, 52.222.177.61 and 52.222.177.124.

other host names include bensoriginal.se, api.orca.medasync.com, pioncorp.com, assets.verifly.com and d3u7t8f6hisi8z.cloudfront.net; they share IP numbers with w.amazon.dev.

Name Servers

w.amazon.dev delegates to four name servers: ns-355.awsdns-44.com, ns-670.awsdns-19.net, ns-1189.awsdns-20.org and ns-1659.awsdns-15.co.uk.

w.amazon.dev at least partially shares name servers with other domains, for instance unity3dusercontent.com, caldiet.com.ar, marksfuneralservice.com, rimrats.de and mki-m365feed.com.

These name servers are commonly used alongside ns-270.awsdns-33.com, ns-1409.awsdns-48.org and ns-1588.awsdns-06.co.uk.

Host names with two IP numbers: ns-355.awsdns-44.com points to 2600:9000:5301:6300::1 and 205.251.193.99; ns-670.awsdns-19.net points to 2600:9000:5302:9e00::1 and 205.251.194.158; ns-1189.awsdns-20.org points to 2600:9000:5304:a500::1 and 205.251.196.165; ns-1659.awsdns-15.co.uk points to 2600:9000:5306:7b00::1 and 205.251.198.123.

w.amazon.dev - robtex.com

`w.amazon.dev`

`amazon.dev`

amazon.dev

DNS Infrastructure

Email & Usage

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

	DNSSEC	⚠️ Not signed
	NS	`ns-729.awsdns-27.net` ⭐
	NS	`ns-101.awsdns-12.com`
	NS	`ns-1373.awsdns-43.org`
	NS	`ns-1648.awsdns-14.co.uk`
	TXT	`v=spf1 -all`
	SOA	`ns-729.awsdns-27.net`awsdns-hostmaster@amazon.com serial=1