duclongetc.com - robtex.com

duclongetc.com

DNSSEC⚠️ Not signed
A34.229.166.50🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
PTRec2-34-229-166-50.compute-1.amazonaws.com
NSns1.duclongetc.com ⭐
A18.205.186.231🇺🇸 Amazon18.204.0.0/14 EC2 IAD prefix
PTRec2-18-205-186-231.compute-1.amazonaws.com
NSns1.csof.net
A18.205.186.231🇺🇸 Amazon18.204.0.0/14 EC2 IAD prefix
PTRec2-18-205-186-231.compute-1.amazonaws.com
NSns2.csof.net
A23.21.178.27🇺🇸 Amazon23.20.0.0/15 EC2 IAD prefix
PTRec2-23-21-178-27.compute-1.amazonaws.com
NSns3.csof.net
A3.214.185.54🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-214-185-54.compute-1.amazonaws.com
NSns4.csof.net
A52.20.19.77🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix
PTRec2-52-20-19-77.compute-1.amazonaws.com
MXmx1.duclongetc.com ⭐
A46.4.12.146🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRstatic.146.12.4.46.clients.your-server.de
MXmx2.duclongetc.com ⭐
A46.4.10.173🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRstatic.173.10.4.46.clients.your-server.de
TXTv=spf1 include:_incspfcheck.mailspike.net ?all
SOAns1.duclongetc.comhostmaster@duclongetc.com serial=1778652263

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778666336
⚠️ On DNS blocklist: tif
🦠 Blackbook: Known malware/C&C domain

Subdomains

mx1.duclongetc.com
ns1.duclongetc.com
mx2.duclongetc.com

Same first word

duclongetc.com

DNS History

13 records (8 active, 5 former)

2020202120222023202420252026NSns1.csof.netns1.duclongetc.comns2.csof.netns3.csof.netns4.csof.netns3.vhost.vnns4.vhost.vnMXmx1.duclongetc.commx2.duclongetc.commx1.vhost.vnmx2.vhost.vnA34.229.166.50103.27.62.62
●NSns1.csof.net2026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34
●NSns1.duclongetc.com2026-04-30 → 2026-05-13 · 3 obs
○ 2026-02-28 08:15:26
● 2026-04-30 19:38:48
● 2026-05-13 10:06:34
●NSns2.csof.net2026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34
●NSns3.csof.net2026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34
○NSns3.vhost.vn2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 13:51:32
○ 2026-02-28 08:15:26
○ 2026-05-13 10:06:34
●NSns4.csof.net2026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34
○NSns4.vhost.vn2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 13:51:32
○ 2026-02-28 08:15:26
○ 2026-05-13 10:06:34
●MXmx1.duclongetc.com2026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34
○MXmx1.vhost.vn2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 13:51:32
○ 2026-02-28 08:15:26
○ 2026-05-13 10:06:34
●MXmx2.duclongetc.com2026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34
○MXmx2.vhost.vn2019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 13:51:32
○ 2026-02-28 08:15:26
○ 2026-05-13 10:06:34
○A103.27.62.622019-12-17 → 2019-12-17 · 3 obs
● 2019-12-17 13:51:32
○ 2026-02-28 08:15:26
○ 2026-05-13 10:06:34
●A34.229.166.502026-02-28 → 2026-05-13 · 3 obs
○ 2019-12-17 13:51:32
● 2026-02-28 08:15:26
● 2026-05-13 10:06:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
duclongetc.comns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net-

✅ Authoritative Response

Server:18.205.186.231

NS records: ns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duclongetc.com (unsigned zone)

⏱️ Timing

Total: 139ms | Queries: -

📄 Records

TypeCountSample Data
A134.229.166.50
NS4ns3.csof.net, ns2.csof.net...
MX2mx1.duclongetc.com (pri: 10), mx2.duclongetc.com (pri: 10)
TXT1v=spf1 include:_incspfcheck.mailspike.ne
SOA1ns1.duclongetc.com hostmaster.duclongetc

Analysis

Hierarchy

duclongetc.com is the parent of mx1.duclongetc.com, ns1.duclongetc.com and mx2.duclongetc.com.

IP Addresses

duclongetc.com resolves to one IP number: 34.229.166.50.

other host names including www.cbb0ed401e8b88fcdcef2e16a68dd7a8.com, 57f992b09126127c889294b2a683c435.net, www.b3cf7c4d4e0f0ab73d8bac9e8eb3f916.xyz, cpf-th.com and sahbrnqnopopmblynnid.com share IP numbers with duclongetc.com.

Name Servers

duclongetc.com is delegated to five name servers: ns1.duclongetc.com, ns1.csof.net, ns2.csof.net, ns3.csof.net and ns4.csof.net.

duclongetc.com at least partially shares name servers with other domains, for instance learnlose.net, ggjejaauunbbiqdrdwkq.com, anofauhlxydgdentsopt.com, ip-91.210.11.10.ntline.net and 0d64c59d3d015a45fcebfe33811b7834.com.

these name servers are often used together with ns5.csof.net, ns6.csof.net, ns7.csof.net and ns8.csof.net.

Host names with a single IP address: The host name ns1.duclongetc.com points to 18.205.186.231. The host name ns1.csof.net points to 18.205.186.231. The host name ns2.csof.net points to 23.21.178.27. The host name ns3.csof.net points to 3.214.185.54. The host name ns4.csof.net points to 52.20.19.77. Host names that point to 18.205.186.231: ns1.duclongetc.com and ns1.csof.net.

Mail Servers

Two mail servers handle duclongetc.com: mx1.duclongetc.com and mx2.duclongetc.com.

Host names with one IP number:

mx1.duclongetc.com points to 46.4.12.146

mx2.duclongetc.com points to 46.4.10.173