dd.study.com - dns.ninja

`dd.study.com`

CNAME	`dd.study.com.first-party-js.datadome.co`
DNSSEC	⚠️ Not signed
A	18.165.83.31^{🇺🇸 Amazon18.165.80.0/21}
		PTR	`server-18-165-83-31.iad55.r.cloudfront.net`
A	18.165.83.40^{🇺🇸 Amazon18.165.80.0/21}
A	18.165.83.73^{🇺🇸 Amazon18.165.80.0/21}
A	18.165.83.84^{🇺🇸 Amazon18.165.80.0/21}

`study.com`

	DNSSEC	⚠️ Not signed
	A	18.165.98.55^{🇺🇸 Amazon18.165.96.0/21}
	A	18.165.98.66^{🇺🇸 Amazon18.165.96.0/21}
	A	18.165.98.74^{🇺🇸 Amazon18.165.96.0/21}
	A	18.165.98.84^{🇺🇸 Amazon18.165.96.0/21}
	NS	`ns-392.awsdns-49.com` ⭐
	NS	`ns-1304.awsdns-35.org`
	NS	`ns-1779.awsdns-30.co.uk`
	NS	`ns-624.awsdns-14.net`
	MX	`study-com.mail.protection.outlook.com` ⭐
	TXT	`MS=ms53113204`
	TXT	`anthropic-domain-verification-rpq4ch=KMgCpOdKlhyxDcpnZpOYPqvaA`
	TXT	`apple-domain-verification=WU33XtJXYKYWBMFX`
	TXT	`cl_verification=c82fcdfd-f3e8-440e-a553-075ccfb9af20`
	TXT	`cursor-domain-verification-ny0f80=30Aq6N8hwrj7srchColYKffpq`
	TXT	`duo_sso_verification=MNU9cp5aDypJt2DBAGz4CAKM7ijf4ndFkFQGV5RXGAvm7TXuFTE8NryA...`
	TXT	`facebook-domain-verification=tsae1foie2qaareu3im55ce7f94um4`
	TXT	`google-site-verification=npT3ySvxTpGr9K-IVFznVPyvQGXizsuSqfZwZ6OM9sw`
	TXT	`jetbrains-domain-verification=873cp9sujsg84omvia609id4y`
	TXT	`notion-domain-verification=JVpsroUh51QRmm3c0qgf6BAlXGueQVsgk77WYIxsV4n`
	TXT	`openai-domain-verification=dv-pWizcYPDNLxMW4Cq4ZpH5Dig`
	TXT	`tinfoil-site-verification: 7f6e32f1d799323409819484f7f443d54ad67003=e5de9446f...`
	TXT	`v=spf1 ip4:54.165.180.232 include:transmail.net include:spf.clearslide.com in...`
	TXT	`zoho-verification=zb44730188.zmverify.zoho.com`
	SOA	`ns-392.awsdns-49.com`awsdns-hostmaster@amazon.com serial=1

⚠️ On DNS blocklist: ultimate
WOT: SAFE (85/100)
rank #2176 globally
rank #1153 in the tld
WOT: SAFE (85/100)
📈 Tranco rank: #5,842

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DNS History

1 record (1 active, 0 former)

●CNAMEdd.study.com.first-party-js.datadome.co2026-05-12 → 2026-06-14 · 2 obs

● 2026-05-12 17:40:02
● 2026-06-14 00:13:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
study.com	ns-624.awsdns-14.net, ns-392.awsdns-49.com, ns-1779.awsdns-30.co.uk, ns-1304.awsdns-35.org	2 records
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-
study.com	ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net	-

✅ Authoritative Response

Server:205.251.198.243

NS records: ns-1304.awsdns-35.org, ns-1779.awsdns-30.co.uk, ns-392.awsdns-49.com, ns-624.awsdns-14.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study.com (unsigned zone)

⏱️ Timing

Total: 2366ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`dd.study.com.first-party-js.datadome.co`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-392.awsdns-49.com, ns-392.awsdns-49.com)

Analysis

IP Addresses

dd.study.com points to four IP numbers: 18.165.83.31, 18.165.83.40, 18.165.83.73 and 18.165.83.84.