`mca.dev`

DNSSEC	⚠️ Not signed
A	3.170.42.19^{🇺🇸 Amazon3.170.40.0/22}
		PTR	`server-3-170-42-19.iad61.r.cloudfront.net`
A	3.170.42.39^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.64^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.92^{🇺🇸 Amazon3.170.40.0/22}
NS	`ns-1181.awsdns-19.org` ⭐
		A	2600:9000:5304:9d00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1181.awsdns-19.org`
		A	205.251.196.157^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1181.awsdns-19.org`
NS	`ns-1943.awsdns-50.co.uk`
		A	2600:9000:5307:9700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1943.awsdns-50.co.uk`
		A	205.251.199.151^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1943.awsdns-50.co.uk`
NS	`ns-341.awsdns-42.com`
		A	2600:9000:5301:5500::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-341.awsdns-42.com`
		A	205.251.193.85^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-341.awsdns-42.com`
NS	`ns-974.awsdns-57.net`
		A	2600:9000:5303:ce00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-974.awsdns-57.net`
		A	205.251.195.206^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-974.awsdns-57.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c25::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f27.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		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`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		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	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
TXT	`MS=89F6108B4AE536B0EB21A07CEA593A0B14673812`
TXT	`google-site-verification=7ngMHnORZo9feJv93p_hlbAFOgnIcXeTP5zSWj9rnFo`
TXT	`google-site-verification=oSVQ6d2qxsL6-t7r4MQjq1ziQCmtr7tug3EuP6pC_YA`
TXT	`v=spf1 ip4:34.198.193.174 ip4:34.199.167.230 include:_spf.google.com include:...`
SOA	`ns-1181.awsdns-19.org`awsdns-hostmaster@amazon.com serial=1

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

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Similar names

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mac.hk

DNS History

65 records (13 active, 52 former)

●NSns-1181.awsdns-19.org2026-02-16 → 2026-07-04 · 2 obs

● 2026-02-16 21:54:38
● 2026-07-04 07:44:38

●NSns-1943.awsdns-50.co.uk2026-02-16 → 2026-07-04 · 2 obs

● 2026-02-16 21:54:38
● 2026-07-04 07:44:38

●NSns-341.awsdns-42.com2026-02-16 → 2026-07-04 · 2 obs

● 2026-02-16 21:54:38
● 2026-07-04 07:44:38

●NSns-974.awsdns-57.net2026-02-16 → 2026-07-04 · 2 obs

● 2026-02-16 21:54:38
● 2026-07-04 07:44:38

●MXalt1.aspmx.l.google.com2026-02-16 → 2026-07-04 · 4 obs

● 2026-02-16 21:54:38
○ 2026-07-04 03:50:48
● 2026-07-04 07:44:34
● 2026-07-04 07:44:38

●MXalt2.aspmx.l.google.com2026-02-16 → 2026-07-04 · 4 obs

● 2026-02-16 21:54:38
○ 2026-07-04 03:50:48
● 2026-07-04 07:44:34
● 2026-07-04 07:44:38

●MXaspmx.l.google.com2026-02-16 → 2026-07-04 · 4 obs

● 2026-02-16 21:54:38
○ 2026-07-04 03:50:48
● 2026-07-04 07:44:34
● 2026-07-04 07:44:38

●MXaspmx2.googlemail.com2026-02-16 → 2026-07-04 · 4 obs

● 2026-02-16 21:54:38
○ 2026-07-04 03:50:48
● 2026-07-04 07:44:34
● 2026-07-04 07:44:38

●MXaspmx3.googlemail.com2026-02-16 → 2026-07-04 · 4 obs

● 2026-02-16 21:54:38
○ 2026-07-04 03:50:48
● 2026-07-04 07:44:34
● 2026-07-04 07:44:38

○A13.249.182.122026-02-19 → 2026-03-28 · 26 obs

○ 2026-02-18 17:07:40
● 2026-02-19 03:40:34
○ 2026-02-19 21:36:44
○ 2026-02-23 00:12:36
● 2026-02-23 18:04:16
○ 2026-02-23 23:48:04
○ 2026-03-08 20:23:12
● 2026-03-09 16:52:26
○ 2026-03-09 21:01:18
○ 2026-03-16 00:08:50
● 2026-03-16 04:46:54
○ 2026-03-16 11:02:16
○ 2026-03-18 21:02:04
● 2026-03-19 11:07:14
○ 2026-03-19 15:42:06
○ 2026-03-20 07:23:52
● 2026-03-20 10:58:58
○ 2026-03-20 15:56:46
○ 2026-03-21 10:13:56
● 2026-03-21 20:24:58
● 2026-03-22 04:48:36
○ 2026-03-22 10:11:52
○ 2026-03-26 11:28:54
● 2026-03-28 07:37:24
○ 2026-03-28 16:50:32
○ 2026-07-04 07:44:38

○A13.249.182.1232026-02-19 → 2026-03-28 · 26 obs

○A13.249.182.132026-02-19 → 2026-03-28 · 26 obs

○A13.249.182.492026-02-19 → 2026-03-28 · 26 obs

○A13.35.107.432026-04-12 → 2026-04-14 · 7 obs

○ 2026-04-11 21:23:18
● 2026-04-12 01:40:04
○ 2026-04-12 03:04:08
○ 2026-04-14 10:09:18
● 2026-04-14 12:07:50
○ 2026-04-15 01:43:34
○ 2026-07-04 07:44:38

○A13.35.107.72026-04-12 → 2026-04-14 · 7 obs

○ 2026-04-11 21:23:18
● 2026-04-12 01:40:04
○ 2026-04-12 03:04:08
○ 2026-04-14 10:09:18
● 2026-04-14 12:07:50
○ 2026-04-15 01:43:34
○ 2026-07-04 07:44:38

○A13.35.107.762026-04-12 → 2026-04-14 · 7 obs

○ 2026-04-11 21:23:18
● 2026-04-12 01:40:04
○ 2026-04-12 03:04:08
○ 2026-04-14 10:09:18
● 2026-04-14 12:07:50
○ 2026-04-15 01:43:34
○ 2026-07-04 07:44:38

○A13.35.107.922026-04-12 → 2026-04-14 · 7 obs

○ 2026-04-11 21:23:18
● 2026-04-12 01:40:04
○ 2026-04-12 03:04:08
○ 2026-04-14 10:09:18
● 2026-04-14 12:07:50
○ 2026-04-15 01:43:34
○ 2026-07-04 07:44:38

○A18.165.160.1142026-05-29 → 2026-05-29 · 5 obs

○ 2026-05-28 23:02:06
● 2026-05-29 01:48:42
● 2026-05-29 02:41:00
○ 2026-05-29 16:13:04
○ 2026-07-04 07:44:38

○A18.165.160.1152026-05-29 → 2026-05-29 · 5 obs

○ 2026-05-28 23:02:06
● 2026-05-29 01:48:42
● 2026-05-29 02:41:00
○ 2026-05-29 16:13:04
○ 2026-07-04 07:44:38

○A18.165.160.42026-05-29 → 2026-05-29 · 5 obs

○ 2026-05-28 23:02:06
● 2026-05-29 01:48:42
● 2026-05-29 02:41:00
○ 2026-05-29 16:13:04
○ 2026-07-04 07:44:38

○A18.165.160.612026-05-29 → 2026-05-29 · 5 obs

○ 2026-05-28 23:02:06
● 2026-05-29 01:48:42
● 2026-05-29 02:41:00
○ 2026-05-29 16:13:04
○ 2026-07-04 07:44:38

○A18.239.168.1042026-04-24 → 2026-05-13 · 24 obs

○ 2026-04-18 14:23:04
● 2026-04-24 03:50:24
○ 2026-04-24 09:08:30
● 2026-04-24 13:15:26
○ 2026-04-24 13:51:08
○ 2026-04-24 16:36:56
● 2026-04-25 00:37:32
○ 2026-04-25 02:11:12
○ 2026-04-26 22:52:18
● 2026-04-27 00:29:24
○ 2026-04-27 02:12:26
○ 2026-04-29 09:57:36
● 2026-04-29 12:39:14
○ 2026-04-29 13:50:46
○ 2026-05-03 00:01:24
● 2026-05-03 00:33:12
○ 2026-05-03 03:58:22
○ 2026-05-07 14:44:52
● 2026-05-07 16:21:30
○ 2026-05-07 18:08:44
○ 2026-05-13 15:53:28
● 2026-05-13 20:08:32
○ 2026-05-13 20:45:14
○ 2026-07-04 07:44:38

○A18.239.168.292026-04-24 → 2026-05-13 · 24 obs

○A18.239.168.752026-04-24 → 2026-05-13 · 24 obs

○A18.239.168.82026-04-24 → 2026-05-13 · 24 obs

○A18.64.174.352026-03-28 → 2026-07-02 · 32 obs

○ 2026-03-28 07:37:24
● 2026-03-28 16:50:32
● 2026-03-29 23:43:08
○ 2026-03-30 00:15:28
○ 2026-04-09 06:17:28
● 2026-04-10 03:00:44
○ 2026-04-10 21:46:50
● 2026-04-11 21:23:18
○ 2026-04-12 01:40:04
○ 2026-04-14 12:07:50
● 2026-04-15 01:43:34
○ 2026-04-15 13:04:38
● 2026-04-16 00:16:08
○ 2026-04-17 08:17:06
○ 2026-05-30 22:48:26
● 2026-06-01 00:43:12
○ 2026-06-01 10:07:22
○ 2026-06-08 19:05:54
● 2026-06-08 21:29:54
○ 2026-06-10 06:02:16
● 2026-06-11 03:05:58
○ 2026-06-11 06:20:18
○ 2026-06-15 21:46:08
● 2026-06-16 07:31:38
○ 2026-06-17 08:00:44
● 2026-06-21 12:47:12
○ 2026-06-21 13:20:56
● 2026-07-01 03:02:38
○ 2026-07-01 21:03:24
● 2026-07-02 21:05:48
○ 2026-07-04 03:50:48
○ 2026-07-04 07:44:38

○A18.64.174.402026-03-28 → 2026-07-02 · 32 obs

○A18.64.174.652026-03-28 → 2026-07-02 · 32 obs

○A18.64.174.832026-03-28 → 2026-07-02 · 32 obs

○A3.160.188.1032026-05-27 → 2026-06-05 · 19 obs

○ 2026-05-26 21:54:12
● 2026-05-27 13:34:34
○ 2026-05-27 15:38:38
○ 2026-05-29 19:23:58
● 2026-05-29 20:53:18
○ 2026-05-30 01:44:58
○ 2026-05-30 03:38:02
● 2026-05-30 05:54:22
○ 2026-05-30 12:42:38
○ 2026-06-01 23:06:36
● 2026-06-02 03:05:58
○ 2026-06-02 05:51:50
○ 2026-06-03 16:23:52
● 2026-06-03 19:15:26
○ 2026-06-04 01:41:26
○ 2026-06-05 04:00:02
● 2026-06-05 17:23:54
○ 2026-06-05 18:00:48
○ 2026-07-04 07:44:38

○A3.160.188.1222026-05-27 → 2026-06-05 · 19 obs

○A3.160.188.322026-05-27 → 2026-06-05 · 19 obs

○A3.160.188.472026-05-27 → 2026-06-05 · 19 obs

○A3.164.206.1092026-03-23 → 2026-03-26 · 12 obs

○ 2026-03-22 21:29:04
● 2026-03-23 02:32:50
● 2026-03-23 03:50:50
○ 2026-03-23 05:15:44
○ 2026-03-25 04:43:20
● 2026-03-25 07:07:58
○ 2026-03-25 11:15:26
● 2026-03-26 00:59:30
○ 2026-03-26 05:45:16
● 2026-03-26 10:49:14
○ 2026-03-26 11:28:54
○ 2026-07-04 07:44:38

○A3.164.206.1252026-03-23 → 2026-03-26 · 12 obs

○A3.164.206.202026-03-23 → 2026-03-26 · 12 obs

○A3.164.206.292026-03-23 → 2026-03-26 · 12 obs

○A3.166.192.1172026-05-08 → 2026-05-09 · 6 obs

○ 2026-05-07 18:08:44
● 2026-05-08 21:39:02
○ 2026-05-08 22:57:14
● 2026-05-09 00:28:18
○ 2026-05-09 01:55:04
○ 2026-07-04 07:44:38

○A3.166.192.282026-05-08 → 2026-05-09 · 6 obs

○ 2026-05-07 18:08:44
● 2026-05-08 21:39:02
○ 2026-05-08 22:57:14
● 2026-05-09 00:28:18
○ 2026-05-09 01:55:04
○ 2026-07-04 07:44:38

○A3.166.192.692026-05-08 → 2026-05-09 · 6 obs

○ 2026-05-07 18:08:44
● 2026-05-08 21:39:02
○ 2026-05-08 22:57:14
● 2026-05-09 00:28:18
○ 2026-05-09 01:55:04
○ 2026-07-04 07:44:38

○A3.166.192.702026-05-08 → 2026-05-09 · 6 obs

○ 2026-05-07 18:08:44
● 2026-05-08 21:39:02
○ 2026-05-08 22:57:14
● 2026-05-09 00:28:18
○ 2026-05-09 01:55:04
○ 2026-07-04 07:44:38

○A3.168.40.452026-05-19 → 2026-07-01 · 28 obs

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

○A3.168.40.602026-05-19 → 2026-07-01 · 28 obs

○A3.168.40.692026-05-19 → 2026-07-01 · 28 obs

○A3.168.40.742026-05-19 → 2026-07-01 · 28 obs

●A3.170.42.192026-02-16 → 2026-07-04 · 36 obs

● 2026-02-16 21:54:38
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●A3.170.42.392026-02-16 → 2026-07-04 · 36 obs

●A3.170.42.642026-02-16 → 2026-07-04 · 36 obs

●A3.170.42.922026-02-16 → 2026-07-04 · 36 obs

○A3.170.73.1102026-03-30 → 2026-07-01 · 43 obs

○ 2026-03-29 23:43:08
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○A3.170.73.152026-03-30 → 2026-07-01 · 43 obs

○A3.170.73.632026-03-30 → 2026-07-01 · 43 obs

○A3.170.73.792026-03-30 → 2026-07-01 · 43 obs

○A3.171.117.1092026-03-07 → 2026-04-18 · 22 obs

○ 2026-02-26 19:56:10
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○A3.171.117.452026-03-07 → 2026-04-18 · 22 obs

○A3.171.117.662026-03-07 → 2026-04-18 · 22 obs

○A3.171.117.972026-03-07 → 2026-04-18 · 22 obs

○A3.174.141.1282026-02-18 → 2026-06-30 · 54 obs

○ 2026-02-16 21:54:38
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○A3.174.141.632026-02-18 → 2026-06-30 · 54 obs

○A3.174.141.742026-02-18 → 2026-06-30 · 54 obs

○A3.174.141.792026-02-18 → 2026-06-30 · 54 obs

○A52.85.78.1122026-04-07 → 2026-06-01 · 10 obs

○ 2026-04-04 21:34:40
● 2026-04-07 06:13:52
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○A52.85.78.312026-04-07 → 2026-06-01 · 10 obs

○A52.85.78.52026-04-07 → 2026-06-01 · 10 obs

○A52.85.78.552026-04-07 → 2026-06-01 · 10 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
mca.dev	ns-974.awsdns-57.net, ns-341.awsdns-42.com, ns-1943.awsdns-50.co.uk, ns-1181.awsdns-19.org	-

✅ Authoritative Response

Server:205.251.193.85

NS records: ns-974.awsdns-57.net, ns-341.awsdns-42.com, ns-1943.awsdns-50.co.uk, ns-1181.awsdns-19.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mca.dev (unsigned zone)

⏱️ Timing

Total: 1120ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.42.39, 3.170.42.64...`
NS	4	`ns-1181.awsdns-19.org, ns-1943.awsdns-50.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	4	`MS=89F6108B4AE536B0EB21A07CEA593A0B14673, google-site-verification=7ngMHnORZo9feJv...`
SOA	1	`ns-1181.awsdns-19.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

mca.dev points to the four IP addresses 3.170.42.19, 3.170.42.39, 3.170.42.64 and 3.170.42.92.

Name Servers

The authoritative name servers for mca.dev are ns-341.awsdns-42.com, ns-974.awsdns-57.net, ns-1181.awsdns-19.org and ns-1943.awsdns-50.co.uk.

At least some of mca.dev's name servers are shared with other domains, for example arrowbay.com.au, d2perrx0kho9f2.cloudfront.net, syncalot.com and two more.

Four hostnames, each resolving to a pair of IP addresses: ns-341.awsdns-42.com directs to 205.251.193.85 and 2600:9000:5301:5500::1; ns-974.awsdns-57.net directs to 205.251.195.206 and 2600:9000:5303:ce00::1; ns-1181.awsdns-19.org directs to 205.251.196.157 and 2600:9000:5304:9d00::1; ns-1943.awsdns-50.co.uk directs to 205.251.199.151 and 2600:9000:5307:9700::1.