`update-windows.grammarly.com`

DNSSEC	⚠️ Not signed
A	18.155.21.16^{🇺🇸 Amazon18.155.16.0/21}
		PTR	`server-18-155-21-16.gru3.r.cloudfront.net`
A	18.155.21.30^{🇺🇸 Amazon18.155.16.0/21}
A	18.155.21.89^{🇺🇸 Amazon18.155.16.0/21}
A	18.155.21.120^{🇺🇸 Amazon18.155.16.0/21}
NS	`ns-1487.awsdns-57.org` ⭐
		A	2600:9000:5305:cf00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1487.awsdns-57.org`
		A	205.251.197.207^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1487.awsdns-57.org`
NS	`ns-1568.awsdns-04.co.uk`
		A	2600:9000:5306:2000::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1568.awsdns-04.co.uk`
		A	205.251.198.32^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1568.awsdns-04.co.uk`
NS	`ns-503.awsdns-62.com`
		A	2600:9000:5301:f700::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-503.awsdns-62.com`
		A	205.251.193.247^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-503.awsdns-62.com`
NS	`ns-641.awsdns-16.net`
		A	2600:9000:5302:8100::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-641.awsdns-16.net`
		A	205.251.194.129^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-641.awsdns-16.net`
SOA	`ns-1487.awsdns-57.org`awsdns-hostmaster@amazon.com serial=1

`grammarly.com`

	DNSSEC	⚠️ Not signed
	A	3.174.83.48^{🇺🇸 Amazon3.174.80.0/21}
	A	3.174.83.108^{🇺🇸 Amazon3.174.80.0/21}
	A	3.174.83.110^{🇺🇸 Amazon3.174.80.0/21}
	A	3.174.83.127^{🇺🇸 Amazon3.174.80.0/21}
	NS	`ns-422.awsdns-52.com` ⭐
	NS	`ns-1221.awsdns-24.org`
	NS	`ns-1588.awsdns-06.co.uk`
	NS	`ns-835.awsdns-40.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
	MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
	MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
	TXT	`MS=96F5E682E3FF0FBFEF84219A18A34BD963086AA8`
	TXT	`MS=ms11892818`
	TXT	`_aji9bs0zsnxbc7s3hgopff5i69gdpoa`
	TXT	`adobe-idp-site-verification=3e651ed09e9293cf53b3383b231a710750a73dba4666d6053...`
	TXT	`apple-domain-verification=YmUmlcXeygZ70cqL`
	TXT	`atlassian-domain-verification=whH-NvC3ViXrafg4bTERPBlxvBNLVWD0xV5WbI2C9ZtubXK...`
	TXT	`cloudflare_dashboard_sso=23b2bdffef1d7658015b6e25e57bccd7`
	TXT	`cloudpiercer-verification=b9dab0c22ef96ee3f675f59252321336`
	TXT	`cursor-domain-verification-sv7qgx=BEg0YCBYeeYuHLiFNLXfRXpGb`
	TXT	`detectify-verification=bd77af0941d04364d951a027120fc676`
	TXT	`docker-verification=e6d67e2c-ddc8-4a8b-bb3b-87efa1b6c380`
	TXT	`docusign=98257b54-419f-4c8e-8387-ee6572462c1a`
	TXT	`docusign=b16227bc-8eed-4fe9-8c59-f857f8f6f8d5`
	TXT	`drift-domain-verification=dd77af23e1275ecb2950661245abc7a0fd9e77afd02ac31622c...`
	TXT	`google-site-verification=69QWyrCZ5njFAMqdC5AZvP2TQVe9JDtIzIdDpDa5X3Q`
	TXT	`google-site-verification=ZqvEoku9LrEhC7sEyYwgLag482jCuUKIdGXG1uYTwHU`
	TXT	`google-site-verification=nm62OjxlwL4GOt1mxARtnuQVJ4kAv0hPO2ANkoAOCYc`
	TXT	`google-site-verification=vLifvjc088vXpEUDE0PT7j2gsQM8Cpa2LVSR-Jee1uc`
	TXT	`jamf-site-verification=3h6Uug2q-ggp8Ahy3ymzUQ`
	TXT	`miro-verification=f95626cc26c38db4b72a6079d5dcf7583be7698c`
	TXT	`notion-domain-verification=Tbg0jfq1eLv144zfB1H5FrCMNbgqilor4HT8VvzhBYM`
	TXT	`notion-domain-verification=qgWEdy4xdexKhlLmcsnhTK6VHNWVDn9Dp9OMfw174MR`
	TXT	`numeric-domain-verification-pfx4f5=iIOICNIh7pE2U8eyIwKgR0bXO`
	TXT	`onetrust-domain-verification=4efd20418d3e40b9bdf3020fb12b119c`
	TXT	`onx=d50f7c6e-7adb-4d07-92a3-f314e524cebd`
	TXT	`parallels-domain-verification=e9daf5c51c7f493d9ad9bbd319d9fafabcba12e1cb7d410...`
	TXT	`pardot894581=aff2191872eb522eed66a62c7d03601ebdae662415c6b1292a7211c01ade257a`
	TXT	`postman-domain-verification=ec4f4a9f21532e35cebc57b2370017a0d7f66b2bb21ad6a1d...`
	TXT	`reachdesk-verification=abmXP4MomXpwkAXG2Pp9jCWvSUYsj4BxDgJwAceSvxIOtDmqWSI7jr...`
	TXT	`status-page-domain-verification=c1c19zbcrb82`
	TXT	`stripe-verification=00ba8e3b5ee449df83a366291b29b6922f8da284fca2ea669531fd089...`
	TXT	`stripe-verification=6324a0d2fe10167d6ed0189caaf601080a24c01493b6d1215252f247d...`
	TXT	`stripe-verification=DDD2DA0949B1569AAFE87F982AD66028F68771E0D3B139416E7F5C861...`
	TXT	`stripe-verification=E633B1A2291B29012E4779284D3E827EAD320388EA6BD12432766B891...`
	TXT	`stripe-verification=E83A60C996A179AD84F0E51EDBC1043DEF1822E88D98B955AA73D1AB0...`
	TXT	`stripe-verification=F3633F704D2137D4082346041FB48DCDBFCF74C5A24135727275D7B7E...`
	TXT	`v=spf1 include:_spf.google.com include:stspg-customer.com include:_spf.salesf...`
	TXT	`vmware-cloud-verification-3df5f056-6241-4c3a-9c78-234f8b64f93a`
	TXT	`wrike-verification=NjcwODE1NjpjYjczN2QwMDg4NmRhNmJiZDFkMWIzMWYwZGQ2NGM3MWE5NT...`
	TXT	`zapier-domain-verification-challenge=afd60c3e-f878-4432-8732-b3d8c7be71b4`
	SOA	`ns-422.awsdns-52.com`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (89/100)
rank #1055 globally
rank #581 in the tld
Semrush Rank:#223 Keywords:1,303,162 Traffic:11,667,072/mo
WOT: SAFE (89/100)
📈 Tranco rank: #566

Grammarly is an AI-powered writing assistant founded in 2009 in Ukraine, now headquartered in the US. With over 30 million daily active users and a valuation exceeding $13 billion, Grammarly has become the leading writing enhancement tool.

Grammarly offers grammar and spelling checking, tone detection, plagiarism detection, and style suggestions across browser extensions, desktop apps, and integrations. The company has invested heavily in AI and natural language processing.

Grammarly's infrastructure processes billions of text suggestions daily, running sophisticated NLP models at scale. The platform must be fast enough for real-time writing assistance.

DNS for grammarly.com uses Cloudflare's authoritative DNS infrastructure with global distribution for fast extension and app performance.

Same first word

update-windows.com

Similar names

windows-update.ru

windows-update.info

windows-update.dynu.net

windows-update.xyz

windows-update.cn

windows-update.zip

windows-update.net

windows-update.com

DNS History

56 records (8 active, 48 former)

●NSns-1487.awsdns-57.org2026-04-14 → 2026-06-04 · 2 obs

● 2026-04-14 22:35:12
● 2026-06-04 02:30:32

●NSns-1568.awsdns-04.co.uk2026-04-14 → 2026-06-04 · 2 obs

● 2026-04-14 22:35:12
● 2026-06-04 02:30:32

●NSns-503.awsdns-62.com2026-04-14 → 2026-06-04 · 2 obs

● 2026-04-14 22:35:12
● 2026-06-04 02:30:32

●NSns-641.awsdns-16.net2026-04-14 → 2026-06-04 · 2 obs

● 2026-04-14 22:35:12
● 2026-06-04 02:30:32

○A108.156.107.1242026-05-19 → 2026-06-04 · 39 obs

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

○A108.156.107.742026-05-19 → 2026-06-04 · 39 obs

○A108.156.107.82026-05-19 → 2026-06-04 · 39 obs

○A108.156.107.822026-05-19 → 2026-06-04 · 39 obs

○A108.156.39.152026-04-16 → 2026-05-17 · 66 obs

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

○A108.156.39.252026-04-16 → 2026-05-17 · 66 obs

○A108.156.39.492026-04-16 → 2026-05-17 · 66 obs

○A108.156.39.632026-04-16 → 2026-05-17 · 66 obs

○A108.157.254.1142026-05-28 → 2026-05-30 · 7 obs

○ 2026-05-27 19:23:06
● 2026-05-28 04:10:08
○ 2026-05-28 05:55:02
○ 2026-05-29 15:34:00
● 2026-05-30 00:07:02
○ 2026-05-30 03:22:22
○ 2026-06-04 02:30:32

○A108.157.254.782026-05-28 → 2026-05-30 · 7 obs

○ 2026-05-27 19:23:06
● 2026-05-28 04:10:08
○ 2026-05-28 05:55:02
○ 2026-05-29 15:34:00
● 2026-05-30 00:07:02
○ 2026-05-30 03:22:22
○ 2026-06-04 02:30:32

○A108.157.254.822026-05-28 → 2026-05-30 · 7 obs

○ 2026-05-27 19:23:06
● 2026-05-28 04:10:08
○ 2026-05-28 05:55:02
○ 2026-05-29 15:34:00
● 2026-05-30 00:07:02
○ 2026-05-30 03:22:22
○ 2026-06-04 02:30:32

○A108.157.254.872026-05-28 → 2026-05-30 · 7 obs

○ 2026-05-27 19:23:06
● 2026-05-28 04:10:08
○ 2026-05-28 05:55:02
○ 2026-05-29 15:34:00
● 2026-05-30 00:07:02
○ 2026-05-30 03:22:22
○ 2026-06-04 02:30:32

○A13.33.109.192026-05-11 → 2026-05-20 · 12 obs

○ 2026-05-10 16:10:48
● 2026-05-11 01:31:48
○ 2026-05-11 15:35:52
○ 2026-05-19 23:44:28
● 2026-05-20 02:53:48
○ 2026-05-20 04:46:00
○ 2026-05-20 07:33:18
● 2026-05-20 08:49:14
○ 2026-05-20 09:42:12
● 2026-05-20 14:42:12
○ 2026-05-20 16:03:38
○ 2026-06-04 02:30:32

○A13.33.109.422026-05-11 → 2026-05-20 · 12 obs

○A13.33.109.502026-05-11 → 2026-05-20 · 12 obs

○A13.33.109.912026-05-11 → 2026-05-20 · 12 obs

○A13.33.82.1152026-04-24 → 2026-05-09 · 51 obs

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

○A13.33.82.1172026-04-24 → 2026-05-09 · 51 obs

○A13.33.82.92026-04-24 → 2026-05-09 · 51 obs

○A13.33.82.942026-04-24 → 2026-05-09 · 51 obs

●A18.155.21.1202026-04-26 → 2026-06-04 · 59 obs

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

●A18.155.21.162026-04-26 → 2026-06-04 · 59 obs

●A18.155.21.302026-04-26 → 2026-06-04 · 59 obs

●A18.155.21.892026-04-26 → 2026-06-04 · 59 obs

○A3.163.101.142026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 15:36:46
● 2026-05-21 20:22:24
○ 2026-05-21 20:59:54
○ 2026-06-04 02:30:32

○A3.163.101.412026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 15:36:46
● 2026-05-21 20:22:24
○ 2026-05-21 20:59:54
○ 2026-06-04 02:30:32

○A3.163.101.712026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 15:36:46
● 2026-05-21 20:22:24
○ 2026-05-21 20:59:54
○ 2026-06-04 02:30:32

○A3.163.101.752026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 15:36:46
● 2026-05-21 20:22:24
○ 2026-05-21 20:59:54
○ 2026-06-04 02:30:32

○A3.170.185.242026-05-19 → 2026-05-31 · 61 obs

○ 2026-05-19 03:08:26
● 2026-05-19 09:23:20
● 2026-05-19 11:34:44
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○A3.170.185.432026-05-19 → 2026-05-31 · 61 obs

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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
grammarly.com	ns-422.awsdns-52.com, ns-835.awsdns-40.net, ns-1588.awsdns-06.co.uk, ns-1221.awsdns-24.org	2 records
update-windows.grammarly.com	ns-1487.awsdns-57.org, ns-1568.awsdns-04.co.uk, ns-503.awsdns-62.com, ns-641.awsdns-16.net	-

✅ Authoritative Response

Server:205.251.194.129

NS records: ns-1487.awsdns-57.org, ns-1568.awsdns-04.co.uk, ns-503.awsdns-62.com, ns-641.awsdns-16.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for grammarly.com (unsigned zone)

⏱️ Timing

Total: 1871ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.155.21.16, 18.155.21.89...`
NS	4	`ns-1487.awsdns-57.org, ns-1568.awsdns-04.co.uk...`
SOA	1	`ns-1487.awsdns-57.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-422.awsdns-52.com, ns-422.awsdns-52.com)

Analysis

IP Addresses

With 4 IP addresses, update-windows.grammarly.com directs to 18.155.21.16, 18.155.21.30, 18.155.21.89 and 18.155.21.120.

Among the host names that share IP numbers with update-windows.grammarly.com are tamakino.hatenablog.com, ikalog.hatenablog.com, hearthtone.hatenablog.com and two others.

Name Servers

DNS for update-windows.grammarly.com is handled by 4 name servers: ns-503.awsdns-62.com, ns-641.awsdns-16.net, ns-1487.awsdns-57.org and ns-1568.awsdns-04.co.uk.

The host names ns-503.awsdns-62.com, ns-641.awsdns-16.net, ns-1487.awsdns-57.org and ns-1568.awsdns-04.co.uk each resolve to two IP addresses: ns-503.awsdns-62.com resolves to 205.251.193.247 and 2600:9000:5301:f700::1; ns-641.awsdns-16.net resolves to 205.251.194.129 and 2600:9000:5302:8100::1; ns-1487.awsdns-57.org resolves to 205.251.197.207 and 2600:9000:5305:cf00::1; ns-1568.awsdns-04.co.uk resolves to 205.251.198.32 and 2600:9000:5306:2000::1.

update-windows.grammarly.com - robtex.com