mscs.alexa-sci.amazon.dev - dns.ninja

`mscs.alexa-sci.amazon.dev`

DNSSEC	⚠️ Not signed
NS	`ns-1714.awsdns-22.co.uk` ⭐
		A	2600:9000:5306:b200::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1714.awsdns-22.co.uk`
		A	205.251.198.178^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1714.awsdns-22.co.uk`
NS	`ns-1291.awsdns-33.org`
		A	2600:9000:5305:b00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1291.awsdns-33.org`
		A	205.251.197.11^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1291.awsdns-33.org`
NS	`ns-347.awsdns-43.com`
		A	2600:9000:5301:5b00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-347.awsdns-43.com`
		A	205.251.193.91^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-347.awsdns-43.com`
NS	`ns-631.awsdns-14.net`
		A	2600:9000:5302:7700::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-631.awsdns-14.net`
		A	205.251.194.119^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-631.awsdns-14.net`
TXT	`v=spf1 -all`
SOA	`ns-1714.awsdns-22.co.uk`awsdns-hostmaster@amazon.com serial=1

`alexa-sci.amazon.dev`

	DNSSEC	⚠️ Not signed
	NS	`ns-652.awsdns-17.net` ⭐
	NS	`ns-11.awsdns-01.com`
	NS	`ns-1326.awsdns-37.org`
	NS	`ns-1944.awsdns-51.co.uk`
	SOA	`ns-652.awsdns-17.net`awsdns-hostmaster@amazon.com serial=1

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mcss.net

DNS History

4 records (4 active, 0 former)

●NSns-1291.awsdns-33.org2026-07-19 → 2026-08-12 · 2 obs

● 2026-07-19 08:10:02
● 2026-08-12 09:57:30

●NSns-1714.awsdns-22.co.uk2026-07-19 → 2026-08-12 · 2 obs

● 2026-07-19 08:10:02
● 2026-08-12 09:57:30

●NSns-347.awsdns-43.com2026-07-19 → 2026-08-12 · 2 obs

● 2026-07-19 08:10:02
● 2026-08-12 09:57:30

●NSns-631.awsdns-14.net2026-07-19 → 2026-08-12 · 2 obs

● 2026-07-19 08:10:02
● 2026-08-12 09:57:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
amazon.dev	ns-1373.awsdns-43.org, ns-1648.awsdns-14.co.uk, ns-101.awsdns-12.com, ns-729.awsdns-27.net	-
alexa-sci.amazon.dev	ns-11.awsdns-01.com, ns-1326.awsdns-37.org, ns-1944.awsdns-51.co.uk, ns-652.awsdns-17.net	-
mscs.alexa-sci.amazon.dev	ns-1291.awsdns-33.org, ns-1714.awsdns-22.co.uk, ns-347.awsdns-43.com, ns-631.awsdns-14.net	-

✅ Authoritative Response

Server:205.251.197.11

NS records: ns-1291.awsdns-33.org, ns-1714.awsdns-22.co.uk, ns-347.awsdns-43.com, ns-631.awsdns-14.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for amazon.dev (unsigned zone)

⏱️ Timing

Total: 739ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1291.awsdns-33.org, ns-1714.awsdns-22.co.uk...`
TXT	1	`v=spf1 -all`
SOA	1	`ns-1714.awsdns-22.co.uk awsdns-hostmaste`

Analysis

Name Servers

The authoritative name servers for mscs.alexa-sci.amazon.dev are ns-347.awsdns-43.com, ns-631.awsdns-14.net, ns-1291.awsdns-33.org and ns-1714.awsdns-22.co.uk.

There is at least partial name server overlap between mscs.alexa-sci.amazon.dev and other domains — box-signin.com, notfallhotline.de, unleash.ai and two more among them.

The name servers ns-376.awsdns-47.com, ns-751.awsdns-29.net and ns-1833.awsdns-37.co.uk are often found in combination with these name servers.

All four hostnames — ns-347.awsdns-43.com, ns-631.awsdns-14.net, ns-1291.awsdns-33.org and ns-1714.awsdns-22.co.uk — resolve to two IP numbers apiece: ns-347.awsdns-43.com to 205.251.193.91 and 2600:9000:5301:5b00::1; ns-631.awsdns-14.net to 205.251.194.119 and 2600:9000:5302:7700::1; ns-1291.awsdns-33.org to 205.251.197.11 and 2600:9000:5305:b00::1; ns-1714.awsdns-22.co.uk to 205.251.198.178 and 2600:9000:5306:b200::1.