ns3.dd3721.com - robtex.com

ns3.dd3721.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:97e3🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:11b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.1.27Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.151.227🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.1.27, 172.67.151.227
IPv6 hints2606:4700:3030::ac43:97e3, 2606:4700:3034::6815:11b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=54, name=cloudflare-ech.com

dd3721.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:97e3🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:11b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.1.27Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.151.227🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScleo.ns.cloudflare.com ⭐
NSsummer.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.1.27, 172.67.151.227
IPv6 hints2606:4700:3030::ac43:97e3, 2606:4700:3034::6815:11b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=54, name=cloudflare-ech.com
SOAcleo.ns.cloudflare.comdns@cloudflare.com serial=2398801091
WOT: UNKNOWN (50/100)
WOT: SUSPICIOUS (38/100)

Previously NS for

dd3721.com

Same first word

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ns3.ownprovider.com
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ns3.altervista.org

Similar names

3sn.de
3ns.co.jp
3ns.in
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3ns.domains
s3n.com
n3s.us
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n3s.info
3ns.me
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3ns.se

DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.1.27172.67.151.2272606:4700:3030::ac43:97e32606:4700:3034::6815:11b50.16.46.61
●A104.21.1.272026-03-01 → 2026-04-11 · 3 obs
○ 2016-07-19 00:25:10
● 2026-03-01 05:07:02
● 2026-04-11 23:10:36
●A172.67.151.2272026-03-01 → 2026-04-11 · 3 obs
○ 2016-07-19 00:25:10
● 2026-03-01 05:07:02
● 2026-04-11 23:10:36
●A2606:4700:3030::ac43:97e32026-03-01 → 2026-04-11 · 3 obs
○ 2016-07-19 00:25:10
● 2026-03-01 05:07:02
● 2026-04-11 23:10:36
●A2606:4700:3034::6815:11b2026-03-01 → 2026-04-11 · 3 obs
○ 2016-07-19 00:25:10
● 2026-03-01 05:07:02
● 2026-04-11 23:10:36
○A50.16.46.612015-08-14 → 2016-07-19 · 4 obs
● 2015-08-14 05:14:38
● 2016-07-19 00:25:10
○ 2026-03-01 05:07:02
○ 2026-04-11 23:10:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net...-
dd3721.comcleo.ns.cloudflare.com, summer.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.9

NS records: cleo.ns.cloudflare.com, summer.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dd3721.com (unsigned zone)

⏱️ Timing

Total: 347ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.151.227, 104.21.1.27
AAAA22606:4700:3034::6815:11b, 2606:4700:3030::ac43:97e3
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (cleo.ns.cloudflare.com, cleo.ns.cloudflare.com, cleo.ns.cloudflare.com...)

Analysis

IP Addresses

ns3.dd3721.com resolves to four IPs: 2606:4700:3030::ac43:97e3, 2606:4700:3034::6815:11b, 104.21.1.27 and 172.67.151.227.

Other host names, for instance directorysource.info, 96link.com, acminisplit.com, isolet.it and www.dictionnaire-japonais.com share IP numbers with ns3.dd3721.com.