`dev.theresearchstudy.com`

DNSSEC	⚠️ Not signed
A	3.170.19.12^{🇺🇸 Amazon3.170.19.0/24}
		PTR	`server-3-170-19-12.iad61.r.cloudfront.net`
A	3.170.19.17^{🇺🇸 Amazon3.170.19.0/24}
A	3.170.19.39^{🇺🇸 Amazon3.170.19.0/24}
A	3.170.19.86^{🇺🇸 Amazon3.170.19.0/24}

`theresearchstudy.com`

	DNSSEC	⚠️ Not signed
	A	3.170.19.12^{🇺🇸 Amazon3.170.19.0/24}
	A	3.170.19.17^{🇺🇸 Amazon3.170.19.0/24}
	A	3.170.19.39^{🇺🇸 Amazon3.170.19.0/24}
	A	3.170.19.86^{🇺🇸 Amazon3.170.19.0/24}
	NS	`ns-753.awsdns-30.net` ⭐
	NS	`ns-1453.awsdns-53.org`
	NS	`ns-1657.awsdns-15.co.uk`
	NS	`ns-6.awsdns-00.com`
	SOA	`ns-753.awsdns-30.net`awsdns-hostmaster@amazon.com serial=1

Same first word

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DNS History

8 records (4 active, 4 former)

○A3.168.147.42026-03-03 → 2026-03-03 · 3 obs

○ 2026-03-03 00:35:18
● 2026-03-03 12:27:16
○ 2026-03-03 14:23:44

○A3.168.147.52026-03-03 → 2026-03-03 · 3 obs

○ 2026-03-03 00:35:18
● 2026-03-03 12:27:16
○ 2026-03-03 14:23:44

○A3.168.147.532026-03-03 → 2026-03-03 · 3 obs

○ 2026-03-03 00:35:18
● 2026-03-03 12:27:16
○ 2026-03-03 14:23:44

○A3.168.147.802026-03-03 → 2026-03-03 · 3 obs

○ 2026-03-03 00:35:18
● 2026-03-03 12:27:16
○ 2026-03-03 14:23:44

●A3.170.19.122026-03-02 → 2026-03-03 · 4 obs

● 2026-03-02 23:27:36
● 2026-03-03 00:35:18
○ 2026-03-03 12:27:16
● 2026-03-03 14:23:44

●A3.170.19.172026-03-02 → 2026-03-03 · 4 obs

● 2026-03-02 23:27:36
● 2026-03-03 00:35:18
○ 2026-03-03 12:27:16
● 2026-03-03 14:23:44

●A3.170.19.392026-03-02 → 2026-03-03 · 4 obs

● 2026-03-02 23:27:36
● 2026-03-03 00:35:18
○ 2026-03-03 12:27:16
● 2026-03-03 14:23:44

●A3.170.19.862026-03-02 → 2026-03-03 · 4 obs

● 2026-03-02 23:27:36
● 2026-03-03 00:35:18
○ 2026-03-03 12:27:16
● 2026-03-03 14:23:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net...	-
theresearchstudy.com	ns-6.awsdns-00.com, ns-753.awsdns-30.net, ns-1657.awsdns-15.co.uk, ns-1453.awsdns-53.org	1 record

✅ Authoritative Response

Server: 205.251.198.121

NS records: ns-6.awsdns-00.com, ns-753.awsdns-30.net, ns-1657.awsdns-15.co.uk, ns-1453.awsdns-53.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for theresearchstudy.com (unsigned zone)

⏱️ Timing

Total: 495ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.19.12, 3.170.19.39...`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-6.awsdns-00.com)

Analysis

IP Addresses

dev.theresearchstudy.com points to four IP numbers: 3.170.19.12, 3.170.19.17, 3.170.19.39 and 3.170.19.86.

For instance, other host names dwukk4u3con48.cloudfront.net, victoriahill.co.nz, assets.dsbackend.com, d3vv9hi0w70eiz.cloudfront.net and abbvie-healthy.dev.researchstudytrial.com share IP numbers with dev.theresearchstudy.com.

dev.theresearchstudy.com - robtex.com